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eatSavr
Homeow Desert C
Copyright © 2009
Reproduction or dipermission of IES,ts employees makaccuracy, completdocument, or repreo, patents, tradem
ering M
r™ Liquid
wners AClimate ne
Information & Ene
istribution of the w Inc., except for inkes any warranty, eness, or usefulneesents that its use
marks, or copyright
Measure
d Swimm
ssociatioear Palm S
ergy Services, Inc.
whole or any part n-house use by Se express or implieess of any data, ine will not infringe uts.
ement
ming Po
on (HOASprings, Ca
. All rights reserve
of the contents ofempra Energy, is ped, or assumes annformation, methoupon any privately
& Verif
ool Cove
A) Swimmalifornia, 2
ed.
f this document wiprohibited. Neitheny legal liability orod, product, or proy-owned rights, inc
fication
er
ming Po009
ithout express wrir IES, Inc., nor anr responsibility for cess disclosed in
cluding but not lim
n Study
ool
tten ny of the this
mited
y:
April 1
ShararProjecSempr555 WLos An RE: He Dear S I am HeatSCA. Tperforconsurepresheatinto theevapo Our teand wvariouThis isand atthe prcontin From t
• • •
•
•
We noclub swper sqSecon54F. Oceanto a wbelowtempewas apvariou
13, 2010
reh Moaddeli ct Manager, Emra Energy
W. 5th Street, Mngeles, CA 900
eatSavr™ Liquid
Sharareh,
pleased to enavr™ Liquid PoThis report idrmance to thamption of heasents 50 to 60ng energy costse water daily oration of wate
esting was conwas held from us types of dats the second et a smaller pooroduct done in nuous use durin
this data, we w
The HeatSavThe HeatSavThe HeatSavsurface per In this testmeasure saThe HeatSavgas cost of applicator Club Swimmannual ther
oticed two impwimming poolquare foot per d is that we oIn the first te
nside when thewet bulb tempw 68F. In the Perature was 68pproximately 5us climates.
merging Techno
L GT15E3 13
d Pool Cover
nclose Informaool Cover, condentifies energat of no pooated pools is 0% of the totas for that pool that works b
er into the air.
ducted at an oFebruary 19t
a such as atmoevaluation of Hol with fewer sa southern Cang its operatin
were able to m
vr™ product DOvr™ product is vr™ product isr year. t as in the pravings at wet bvr™ product is $1.133 per Thinstallation. Tming Pool projerms saved com
portant similal in Oceanside,year in Palm
only estimatedest we noticee dry bulb temerature of 55FPalm Springs 8F, which mea54F. These ob
ologies Progra
ation & Energducted at the gy savings gainol cover. Theto limit the eal energy loss (ASHRAE, 200y forming a t
outdoor swimmh, 2009 to Apospheric condiHeatSavr™ to owimmers to coalifornia coastag hours.
ake several co
OES have a meestimated to ss estimated to
revious test abulb temperatestimated to
herm, when coThis payback pect due to the
mpared to the p
rities between, CA. First is tSprings, and 0d savings wouled savings onlperature is 59FF. In this test area test the ans that the wbservations off
| Semp
m
gy Service’s mHomeowner’sned by using e primary waevaporation frofrom the poo
07). The HeatSthin film on t
ming pool in april 22nd, 2009 itions, water teobtain informatompare the resal climate town
onclusions:
easurable effecsave 7% of theo save 0.56 T
at the Workouures less than have a simple
onsidering costperiod is longesmaller surfacprevious test p
n this test andhat we estima0.57 therms sad occur belowy when the dF the average we noticed saaverage relat
wet bulb tempfer insight into
pra Energy: Heat
easurement as association (Hthe product, y that a pooom the waterol, which tranSavr™ Product ithe surface of
HOA / Countrand consistedemperatures, tion on its persults with thosn, at a much la
ct on swimmine baseline natuherms, or $0.
ut Club Swimapproximatele payback perit of product, cer than the once area of this tool.
d the previous ate an average ved per squar
w a wet bulb tdry bulb temprelative humidavings when ttive humidity erature below how the Heat
tSavr™ Liquid Poo
and verificatioHOA) pool neaand comparesol cover reducr’s surface. Tslates to the s a chemical trf the water w
ry club near Pad of collectingand natural garformance in ase from the firsrger pool (Wor
ng pool energyural gas consum.404 per squa
ming Pool wey 54 degrees Fiod of 1.09 yecost of applicane estimated ftest pool, and
test conductesavings of 0.5
re foot per yeaemperature ofperature was dity is 77%, whhe dry bulb tewas 38% whe
w which we metSavr™ product
ol Cover Analysis
n study on thar Palm Springs the productces the energhis evaporatiomajority of threatment addewhich slows th
alm Springs, CAg and analyzinas consumptioa desert climatst monitoring orkout Club) wit
y consumptionmption per yr.re foot of poo
e were able tF. ars at a naturator, and cost oor the Workouthus lower tot
ed at a workou56 therms savear in Oceansidf approximatebelow 59F. ich correspondemperature waen the dry bueasured savingt will perform
| 2
he gs, t’s gy on he ed he
A, ng n. te of th
n. . ol
to
al of ut al
ut ed e. ely In ds as lb gs in
After cfor sav Monitbathebiodegwater,spa. recomcompa Sincer MichaPresidInform16770San Di
conducting ouvings in heatin
toring equipmer load the savgrades faster i, much higher To overcom
mmended, whiared to a pool.
rely,
ael B. Rogers, Pdent mation & Energ0 Santanella St.iego, CA 9212
r tests from Feg costs resultin
ent was also ivings was insign warm waterthan in a swime this, largerch contribute In this report
P.E., C.E.M.
gy Services, Inc. 7
ebruary to Aprng from the us
installed at thgnificant. This r. Also mentiomming pool, wr and more es to a highert all savings figu
c.
| Semp
ril 2009, we are of the HeatS
e spa, howevewas confirme
oned by Flexiblwhich tends to frequent appr operating coures refer to sa
pra Energy: Heat
re able to concSavr™ product
er due to the ed by Flexible e Solutions waremove the p
plications of ost and thus avings at the p
tSavr™ Liquid Poo
clude that thein a heated sw
high water teSolutions, sin
as the high ratproduct when bthe HeatSavrless cost effe
pool alone.
ol Cover Analysis
re is a potentiwimming pool.
emperature annce the produtio of bathers tbathers exit th™ product arective in a sp
| 3
al
nd ct to he re pa
Tab BackgTest MMeaMetDat
PerforResultNatFina
ConcluWorkAPPE
AppApp
ble of Co
round ...........Methodology ..asurement Partering Equipmea Analysis ......rmance Analysts ..................tural Gas Savinancial Analysis usion .............ks Cited .......ENDIX ..........pendix I ......pendix II ....
ontents
.....................
.....................rameters ........ent .....................................is .......................................ngs Resulting Fr
.............................................................................................................................
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.....................
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.....................rom HeatSavr™..............................................................................................................................
| Semp
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.....................™ Liquid Pool C..............................................................................................................................
pra Energy: Heat
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.....................Cover Compare..............................................................................................................................
tSavr™ Liquid Poo
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.....................
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.....................
.....................
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.....................ed to No Pool C..............................................................................................................................
ol Cover Analysis
....................
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.................. 1
.................. 1
.................. 1Cover ........... 1.................. 2.................. 2.................. 2.................. 2.................. 2.................. 2
| 4
5 6 6 7 1 5 8 8
20 21 22 23 23 25
Bac InforSolut"real‐SprintreatThis ideserprodurepreOcea The land idegrareducevapodistinthat tdaily to coreducand 6impadeser
The Ahandof a s
1 Follofactor
kground
mation & Entions, Ltd. st‐world" appgs, CA. Thed pool opeis the seconrt climate, auct in Oceanesents a ponside projec
iquid pool cs sold underadable treatce heat losoration fromnguish the Hthe HeatSavwith an autover the pocing evapor60% of the ct on energrt climate HO
American Sobook which swimming po
owing this equaof ¾ for wind
nergy Servicetudied the lication at ahe energy saeration as thd evaluationand to compnside, CA wool with diffct. This repo
cover evaluar the productment appliss and savem the surfacHeatSavr™ liqvr™ liquid wotomatic dosaool. Both Hation from heat loss frgy savings atOA pool nea
ociety of Heacontains infool. This eq
ation in the ASspeeds below
es, Inc. (IES)effects of th Homeowneavings perfohe pool wasn of HeatSavpare the resith a coastaferent usagort describes
ted in this sct name Heaed once pee energy in ce (Flexible quid from storks 24 houage pump soHeatSavr™ liqthe pool surom a pool,t a heated sar Palm Sprin
ASHRA
ating, Refrigeformation uuation is giv
HRAE manual 3.5 mph.
| Semp
) in partnershe HeatSavrer’s Associatormance wa being opervr to obtain ults with thl climate. Te pattern ts the details
study is mantSavr™. Theer day whichboth indooSolutions Intandard floars per day, o the operaquid and flurface. Evapso reducingswimming pngs (ASHRAE
E Calculati
erating, and seful to calcven as1:
is a note that i
pra Energy: Heat
hip with Semr™ liquid swtion (HOA) swas compareated beforeinformationose from thThe HOA poothan the woand results
nufactured be HeatSavr™ h has been or and outdnternational ating plastic the second tor does nooating plastporation accg evaporatioool like the E, 2007).
ions
Air Conditioculate the he
it should be m
tSavr™ Liquid Poo
mpra Energywimming poowimming pod to the une the start on on its perfhe first moniol used in thorkout clubof the study
by Flexible Sliquid is a nspecificallydoor pools Ltd.). Two pool coversis that it cat need to betic pool covcounts for bon will haveone being t
oning Engineeat loss from
(ASHRAE, 2
ultiplied by a c
ol Cover Analysis
y and Flexiblol cover in ool near Palmncovered/unof the testingformance in itoring of thhe study als pool in thy.
olutions, Ltdon‐toxic, bio designed tby reducinkey feature
s. The first an be appliee relied upovers work bbetween 50%e a significantested at th
eers publish m the surfac
2007)
correction
| 5
le a m n‐g. a
he so he
d. o‐to ng es is ed on by % nt he
a ce
The Amodemanu
Test This sdetrimperfo
Data periotempAlso wateGas sThis b(excluto the
ASHRAE calcel for the exual which dis
t Method
section detaments of thormed, the d
was collectod. Atmosperature, relrecorded wr temperatusupply to thboiler was uuding the sue pool.
ulations wexperiment. Pscusses swim
dology
ails the stephe HeatSavrdata logging
ted electronspheric conlative humidere pool waure, and mae pool hot wused only to un), making
re used as aPlease see Amming pool
ps IES technir™ liquid poequipment
Measurem
nically and rditions werdity, solar iater conditiokeup waterwater boilerheat the pothis the mo
| Semp
preliminaryAppendix I foheat loss as
icians took iool cover syused and ho
ment Param
recorded at re recordedntensity (inons includin rate. A mer to measurool, and wasost reliable m
pra Energy: Heat
y estimate oor an excerpit relates to
n order to istem. It dow the data
meters
15 minute d, includingsolation), ang return waeter was alsre the energ the only somethod of m
tSavr™ Liquid Poo
f energy savpt from the 2o boiler sizing
identify the etails how was analyze
intervals ovg dry bulb nd average ater temperso placed ongy used for purce of heatmeasuring th
ol Cover Analysis
vings and as 2007 ASHRAg.
benefits anthe test waed.
ver a 9 weeoutside awind speedature, suppn the Naturapool heatingt for the poohe heat inpu
| 6
a AE
nd as
ek ir d. ly al g. ol ut
The ftest: Table 2Dat
Gas CoPool TPool TWaterTempeWaterTempeOutsidTempeOutsidTempeOSA RMakeu
Wind SSolar I
Data ASystem
An Ainstacollecsensiprescwarein var The meason th
following me
2.1: Metering Eqta Point Name
onsumption Temperature Temperature r Supply erature r Supply erature de Air erature de Air erature elative Humidiup Water Rate
Speed ntensity
Acquisition m
AcquiSuite™ lled. The Action of any ng devices. cheduled inhoused for frious charts
metering esuring the quhe following
etering equip
quipment SummaEquipm
Meter onRTD on wtransmittRTD on w
transmitt
RTD meaTemp. transmitt
ity RH% sens Flow met
feed line Sensor lo1‐1500 WPyranomRecords &database
A8812‐GSMAcquiSuite™ analog (4 to The Acquitervals to future analyin addition t
equipment iuantity of napage for an
Meteri
pment was i
ary ment Descript
n boiler gas linewater return linter for abovewater supply lin
ter for above
suring Dry Bulb
ter for above
sor, 1% accurater on pool wat
ocated close to W/Sq Meter eter & uploads data
M data acqA8812‐GSMo 20ma or 0 Suite™ uplothe IES adysis. From thto the ability
ncluded aatural gas usillustration
| Semp
ng Equipm
nstalled and
ion Man
e Dressne KELE
KELEne KELE
KELE
b Air KELE
KELE
cy KELEter Badge
pool GlobaObviu
a to Obviu
quisition unM has 8 flexto 10V) as wads data viadministered he IES websy to export d
Dresser Rosed for heatiof the mete
pra Energy: Heat
ment
d used to co
nufacturer
ser Roots
er
al Waterus
us
nit manufacx IO inputs well as any pa a wirelessSQL databite the histodata for use
oots model ng of the por.
tSavr™ Liquid Poo
llect the dat
ManufactuNu
Model 8C1751000 Ohm 37Model T91U 41000 Ohm 37
Model T91U 4
1000 Ohm 37
Model T91U 4
Model HO1K Disc Series mWater MeterWind Speed MModel LI200 4
Model A8812
ctured by Obuilt‐in to apulse output s internet coase where orical data caon a PC.
#8C175 gaool. Please s
ol Cover Analysis
ta used in th
urer’s Model umber 5 with Pulser75 Platinum RT4‐20mA 75 Platinum RT
4‐20mA
75 Platinum RT
4‐20mA
4‐20mA odel M70‐B81 Model WE5504‐20mA
2‐GSM
Obvius® waallow for thfrom variouonnection othe data an be viewe
as meter fosee Figure 2.
| 7
is
TD
TD
TD
as he us on is ed
or .1
The mmeteGPM
Figure 2.1: D
make‐up waer model M7. Please see
Dresser Roots Ga
ter flowing 70‐B81, whice Figure 2.2 b
as Meter with at
to the pool ch is a 1" in‐below for an
Figure 2.2: Ba
| Semp
ttached Pulser
was measu‐line meter tn illustration
adger M70 Disk W
pra Energy: Heat
red using a that allows f of the mete
Water Meter
tSavr™ Liquid Poo
Badger discfor flows beer.
ol Cover Analysis
c series watetween ¾ ‐ 7
| 8
er 70
Pleasand thous
FigurePlatinuTemp. FigureRTD tTransm
Pleassenso
The Hin Figspecifor atest.
se see Figuretransmitter uing was used
e 2.3 (left): KELum Series RTD Sensor
e 2.4 (right): to 4‐20mA anmitter (int. view
se see Figuror and the G
HeatSavr™ prgure 2.7 on fically for us view of th
es 2.3 and 2.used in the wd to measur
LE
KELE nalog w)
res 2.5 and Global Water
roduct was dthe followinse with the e Obvius Ac
.4 below forwater supplye dry bulb O
2.6 below fr WE550 win
dispensed usng page. ThHeatSavr™ pcquiSuite™ A
| Semp
r views of thy and returnOSA tempera
for views ond speed sen
Figure 2.5 (Figure 2.6: Sensor
sing the HS1he HS115 is product. PleA8812‐GSM
pra Energy: Heat
e KELE RTD tn lines. A simature.
f the KELE nsor used in
Left): KELE HO(above): Glob
115 automatmarketed bease see Figdata acquis
tSavr™ Liquid Poo
type tempermilar unit wi
HO1K Relatthe test.
O1K Relative Hubal Water WE5
tic injection by Flexible Sgure 2.8 (folsition server
ol Cover Analysis
rature sensoth a differen
tive Humidit
umidity Sensor550 Wind Spee
pump showolutions, Ltdllowing pager used in th
| 9
or nt
ty
r. ed
wn d. e) he
Figure 2.7 (abAutomatic DeFigure 2.8 (rigA8812‐GSM d
bove): HeatSavelivery Pump ght): Obvius Acdata acquisition
vr™ Model HS1
cquiSuite™ n server
| Sempr
15
ra Energy: HeatSSavr™ Liquid Pool Cover Analysis | 1
10
The deffecthe ecoverno coorderexclu
123
High the cperioor inreducthe wthat tfor wand 2for sdisbu Appro7% wdisqunightwell bof tim The othe sNatioReso In adconsttempcreatgas c
data collectetiveness of energy used r. The test over as a cor to maintaude data on a
. Wind spe
. Pool wate
. Circulatio
winds will case of this tod of time. Sto a cornercing its effecwind dies dothe test poo
wind speed r20 mph wershort periodursement.
oximately 7%was the data ualified due tt by the ownbelow the tyme that the w
outside air hsensor. Tesonal Oceanorts Regional
ddition to rtruct a modeperature (indtes a line of bonsumption
ed was analythe HeatSavto heat thewas performontrol underin a uniforma 15‐min bas
ed was greaer temperatuon loop pum
ause increastest the windSustained wr of the pooctiveness. Twn. Data wol is extremeeadings to rre measuredds of time
% of the datcollected bto the circulners. Whenypical rangewater tempe
umidity sensting was noographic andAirport wea
removing unel that preddependent vbest fit betwn. The line o
Dat
yzed by IES vr™ product pool undermed under t different wm testing esis when the
ater than a sure was outsp was disabl
sed evaporad speed nev
winds will cauol, and not The film autwith high winely well shereach sustaind, however and were
ta did not metween Januation pump n the boiler and even aerature rem
sor failed duot suspended Atmospherather station
nusual condicts gas convariable). Lween two daf best fit is s
Y =
| Sempr
ta Analysis
to determint. Specificar the HeatSathe HeatSavweather condnvironment e following w
ustained 3.5side of the rled.
tion heat lover exceededuse the molbe evenly dtomatically rnds was checltered from ned speeds these were therefore u
eet the criteuary 5th 200(and therefwas disablefter the boilained below
uring the tesed, and relatric Administn was deeme
ditions, the sumption (dLinear regreta sets; in thstated as an = m*X + b.
ra Energy: HeatS
s
ne the overally, the analavr™ cover, ar™ cover thrditions; fromrules were
were true:
5 mph over tange of 80‐8
ss and wered 3.5 mph foecular film tdispersed ovredistributescked for, howthe wind onof over 2 mmaximum unlikely to
eria in #2 ab9 and Februfore also theed the waterler is enablew the specifie
st. This wastive humidittration (NOAed more reli
analysis usdependent vession is a shis case, outequation th
Savr™ Liquid Pool
ll performanlysis involveand as a conree times anm February te applied to
the 15‐min p86 F.
e checked foor a sustaineto be pushever the surfs itself evenwever it shon 3 sides anph. Wind greadings anhave affec
bove. Not inuary 18th 200e boiler) beinr temperatued again theed range.
due to watety data collAA) at the nable and use
sed linear rvariable) fromstatistical tetside air temat follows th
Cover Analysis | 1
nce and costed calculatinntrol, with nnd twice witto March. Io the data t
period.
r, however ied 15 minutd to one sidface, therebly as soon aould be notend it was rarusts up to 1d only lasteted the film
cluded in th09 which wang disabled aure would fare is a perio
er damage tected by thearby Deseed instead.
regression tm outside aechnique thaperature anhe form
11
t‐ng no th In to
in te de by as ed re 15 ed m
he as at all od
to he rt
to ir at nd
The consutempconfistanddifferof thHeatS Two Cove
Wherdry bthis eachieAdditconsuoutsipage consu
Figure
use of lineumption) if perature is kdence. Thedard error orence betwee estimate,Savr™ data, t
separate eqr (baseline)
re C is the pbulb outsideequation is reving these rtionally, outumption; thide air tempfor a visual umption val
e 2.9: HeatSavr
ar regressiothe indepenknown then e linear regrof the estimeen predicte the better the standard
quations werdata. The e
redicted gas air temperareliable fromresults by chtside air temis is computperature andrepresentatues.
r Equation Pred
on enables ndent variabgas consumression lines mate. The sed value andthe predict
d error of th
re derived; quation for
.
s consumptiature in unim two statishance alonemperature aed as the sqd gas consumtion of the e
dicted Values C
| Sempr
the predicble (outside mption can bfit very welstandard er the actual vtive value oe estimate is
one for the the HeatSav
. (
on rate in uts of degreetics. First, ae; for this dalone accounquare root ofmption. Pleequation plo
Compared to M
ra Energy: HeatS
tion of a dair temperae predicted ll to the datrror of the value; the smof the equats 0.001, a ve
HeatSavr™ vr™ data is:
(Equation 1)
nits of Thermes Fahrenhean F‐test coata, that likents for 26.1f the correlaease see Figotted with th
Measured Value
Savr™ Liquid Pool
dependant vate) is knowwith a certaa, which is sestimate is maller the sttion. In theery small val
data and on
ms per houreit. We can mputes the elihood is les% of the chation coefficure 2.9 on the measured
es
Cover Analysis | 1
variable (gawn. When aain degree oshown by ththe averagtandard erroe case of thue.
ne for the N
r, and T is thbe sure thalikelihood oss than 0.1%hanges in gaient betweethe followind average ga
12
as ir of he ge or he
No
he at of %. as en ng as
Fromespecat thegas c The e
Wherwith two sthe Nconsu0.001 Similaconsu2.9 osampconsu2.10
Figure
m Figure 2.9 cially at colde sample aironsumption
equation tha
re C is the pthe HeatSavstatistics. ThNo Cover daumption. In1, a very sma
ar to the Heumption witn the previople air tempeumption is sbelow.
e 2.10: No Cove
we see thader temperar temperatun is shown al
at was derive
predicted gavr™ equationhe F‐test for ata, outside n the case oall value.
atSavr™ equth no cover aous page, theeratures thahown along
er Equation Pre
at the predtures. The pres that are ong the Y‐ax
ed for the No
.
as consumpn, we can bethis equatioair temperaf the HeatSa
uation, it is ualongside the predicted vt are shownthe Y‐axis in
edicted Values
| Sempr
dicted valuespredicted vashown alonxis in units o
o Cover data
.
ption, and T sure that thon is also lesature accouavr™ data, t
seful to plote predicted values are ca along the Xn units of Th
Compared to M
ra Energy: HeatS
s match thealues are calng the X‐axisof Therms pe
a is:
(Equation 2)
is the outshe No cover ss than 0.1%nts for 24.4he standard
t the measurgas consumalculated usX‐axis of the herms per ho
Measured Valu
Savr™ Liquid Pool
e measuredculated usins of the plot.er hour.
ide air tempequation is
%, which is ve4% of the chd error of th
red average ption. Just ing Equationplot. The naour. Please s
ues
Cover Analysis | 1
values welng Equation . The natura
perature. Areliable fromery good. Fohanges in gahe estimate
gas like Figure n 2 at the atural gas see Figure
13
ll, 1 al
As m or as is
Fromconsu
m Figure 2.10umption com
0 we see thatmpared to th
t our predicthe measured
| Sempr
ted values ad averages, e
ra Energy: HeatS
re conservatespecially at
Savr™ Liquid Pool
tive estimatt cooler tem
Cover Analysis | 1
es of gas peratures.
14
Perf The Hby reThe pthis csystetest, scenaautom For adiscrewas bair tecomptempdegre
As wdata
formance
HeatSavr™ prducing the aprimary finacase, naturam installed the naturalarios: first, wmatic pump;
nalysis of coete based obeing consuemperature, parison of tperature ranee range (X‐a
e can see inare similar.
e Analysis
roduct is meamount of encial savingsal gas) use fat this pool gas consumwith the He; and second
over performon the 15‐mmed. This awhile contrthe averagenge (on the axis).
Fig
n Figure 3.1 At temper
s
eant to functevaporation fs generated for heating; all heatingmption was eatSavr™ liqd, with no co
mance, eachinute averagallowed us trolling for ote natural gY‐axis) plott
gure 3.1: Natura
the curve oratures cold
| Sempr
tion as an enfrom outdooby HeatSavthe pool. Tg is done by measured auid pool coover used at
h set of natuge air tempto model thether variablegas consumted against
al Gas Consump
of the HeatSder than 68
ra Energy: HeatS
nergy savingor as well asr™ resulted fThere is no one naturaand comparver being u all.
ural gas conserature thate gas consumes. Please seption durinthe median
ption by Cover Ty
Savr™ data adegrees Fah
Savr™ Liquid Pool
gs device. It s indoor swimfrom the redsolar hot wl gas fired bred over theused as dire
sumption dat occurred wmption baseee Figure 3.g each twon temperatu
ype
and that of threnheit we
Cover Analysis | 1
saves energmming poolduced fuel (iwater heatinboiler. In the two testincted with a
ata was madwhile the gaed on outsid1 below for o degree aure of each
the No Covee predict tha
15
gy s. in ng is ng an
de as de a ir 2
er at
thereThis d In dawe cachancnot h Whenmakebeforscena IES uData figurethan can sproposay tHeatSpotentempsomecollecfrom HeatS Tablewithiaverathat figureit andtempwintetempdegre
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n HeatSavr™e sure the pre the next arios.
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™ data was beroduct was cover type
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following pwo degree tption value ay close attavr™ betweeerefore cona falls in theperatures in orded at theeit.
Table 3.1 (fn were not quations 1 &Regional Airpnd all data coction. Pleas
o using the Hlinear equa
data points at the data r3). For this rs to support
eing collectefully appliewas tested
analysis sos report. Wxpressed by data collectegreen dasheture, and sindecreases tover line. To HeatSavr™8 degrees Far™ use compert Resorts R9 we found be benefici
page shows ttemperaturein the tabletention to tn 50 and 52nsidered unre 60 to 80 dethis region
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the measuree range. The is the numwo details i degrees hareliable (Goegree Fahrenbeing in thJanuary thru
age) pleaseke the savin4 days of airer station. Enus data disqResults secti
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for each anue to true dave not ploture 3.1.
r transition pto make susure there w
evelop the fat the HeatSation 1). Thcover was iFigure 3.1. tSavr™ line he a greater on betweenpared to an e equations cover beingport weathewere a tota
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alytical subgdifference antted any ave
period was are it was fuwas no over
findings discSavr data plhis line has an use (EquatBoth lines has a lesser separation
n the lines reuncovered predict thatg used. Baser station oval of 196 day
natural gas mber to the points used
1: first, the 20 data poinond, the mathis is due tFor example9 was approx
mind that tons. Savingsure data col& 2 were dreasons disher discussio
Cover Analysis | 1
we collectedre 3.1.
group so thand not due trages that d
allowed for tlly dissipaterlap of cove
cussed in thotted on tha lesser sloption 2), as ware inverseslope we cabetween thepresents thpool. At a
t there will bsed on NOAver the perioys (54%) tha
consumptioright of eacd to make uconsumptionts to supporajority of thto the normae the averagximately 68.
the averages calculationlected at thderived usincussed in thon of saving
16
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at to do
to ed er
he he pe we ly an he he all be AA od at
on ch up on rt he al ge .5
es ns he ng he gs
As wdegreuse. Oceathis previbulb Sprinaveraapprobulb result Overaconseall. Abe us
we can see fees it appeaWhen we cnside we hatemperatureous test pertemperaturgs (desert cage relative oximately 54temperaturting from th
all the Heaervation in aAdditionally,sed (for safe
Ta
from Table ars that verycompare thisad savings we corresponriod in Oceare is 55 degclimate) reghumidity of4 degrees. e of approxe use of the
atSavr™ proa heated ou, HeatSavr™ ty reasons),
Table 3.1: Natur
3.1 above, y little gas is s to the temwhen the drnded to ananside. Usinrees at thesgion at a dryf 38%, whicWhat we leimately 54 oe HeatSavr™ p
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ral Gas Consum
at dry bulbbeing consu
mperature frry bulb temn average rng the psychse conditiony bulb tempch lets us loearn from tor 55 degreeproduct.
shown to ming pool wd on pools wpool in this
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b air temperumed whethrom the prevperature warelative humhrometric chns. For the perature of ok up the whis comparies we were
have a poswhen compawhere a convtest.
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ratures warher or not thvious test was 59 degremidity of 77hart we find current test68 degreeswet bulb temison is that able to mea
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Cover Analysis | 1
rmer than 6he cover is iwe see that iees or colde7% over ththat the wet in the Palms we have amperature obelow a weasure saving
t on energg no cover aanket canno
17
68 in in r, he et m an of et gs
gy at ot
ResuNatur
Usingtempstatioexpecfor thperioassumsimul
TheseTableThis tablework
ults ral Gas Saving
g equations perature daton during thcted naturalhe savings od where nomed to havlated within
e same resue 4.2 on thesurface area 4.2. The sabook) in App
gs Resulting F
One and Ta collected bhe period frl gas savingsresults calcuot otherwiseve 365 days a one year
lts calculatee following pa was used avings calcupendix II.
From HeatSav
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Table 4.1: Es
ed on per sqpage. The sto calculatelations are a
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on pages 1A at the Des08 to 4/30/e to HeatSathe test pooPlease notewere 196 d
stimated Savings
uare foot ofurface area e the consualso include
ra Energy: HeatS
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f pool surfacof the test mption andd as an atta
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respectively,Regional Airpossible to ease see Tab specified 3e calculationeatSavr™ co
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Cover Analysis | 1
Pool Cover
, and the aport weathecalculate thble 4.1 below364 day timns one year over use wa
s are given i0 square feeures given iicrosoft Exce
18
ir er he w
me is as
in t. in el
The seach tempconsuvaluenaturvaluethe HtemptempThesedifferThe consusavinsavinin sqoutsiexpec
savings are cone hour
perature. Thumption fore is then divral gas consue is used as HeatSavr™ eqperature. Thperatures the figures arrence betwesavings froumption ovegs for a givgs figures inuare feet. Dde of the socted that the
Table 4.2:
calculated asof the ye
hese values the period vided by theumption perthe baselinequation (Equhis is done ae consumptre shown ineen the basm HeatSaver the test pen swimminn Table 4.2 wDeriving equouthern CA de study resu
: Estimated Sav
s follows: firear is assigs are addeif no cover e surface arr square fooe yearly gasuation One)t all tempertion is assumn Tables 4.seline and Hr™ use werperiod, as shng pool in thwould need uations to pdesert regionults would be
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vings per Square
rst, using thened a consed togetherwere to be rea of the pot if no coves consumptio) is used to ratures belowmed to be e1 and 4.2. HeatSavr™ exre calculatehown in thehe Palm Sprto be multipredict the en was not we valid in are
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Cover Analysis | 1
quation Two on the abaseline gaable 4.1. Ththe projectetire year; thle 4.2. Nexbased on ait; at warmecovered poolated as thion amountbaseline gahe estimatesumption anea of the poographic areatudy, but it s.
19
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Finan In ordnecescompfollow
The fcalcumultithe hadvanHeatSTo cathe yapplipaybfixed largeperio Assumapplipurchpotena surfoot pumpthe smorewereOceainstaa long
ncial Analys
der to deterssary to perpare this towing assump
- Initial estimat
- Ongoin- Each bo- A price- Calcula
same g- HeatSa
400 squ- A total o- 30 days
financial savlated on a piplied by thehourly tempntage to appSavr™ produalculate the yearly projecator pump ack period ocost and amr pools withod.
ming a fixedcator pumphased and intially be rearface area oper year. Tp and installsame climate total gas do similar benside, CA all the HeatSager simple p
sis
rmine the corform an anao the cost options were
cost of the Hted to be $400ng cost for the ottle of HeatSae of $1.133 perations are basegeographic locaavr™ product is uare feet per dof 196 days of as per month /
vings are caper hour base cost per Thperature patply the Heatuct applicationet yearly sected gas fiand its instof 1.09 yearmortization more surfac
d natural gap would benstalled. Talized by thef 910 squarhe simple pation labor e there woollars saved etween the nd the HOAavr™ system payback peri
ost effectivenalysis which of the prodmade:
HeatSavr™ app0 HeatSavr™ is $avr™ is assumedr Therm of natued on a pool wiation as the tesassumed to beday when applpplication per ye365 days per y
alculated as is for an entherm to calcttern of ontSavr™ prodon is multipavings the snancial saviallation are rs. Since theis directly rce area and
as cost of $ realized oThereafter ae facility. The feet, so thayback for tcost) is unduld be a shper year. Cprevious t
A test pool is the sameod.
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ness of the Hincludes thuct. In ord
plication equip
65 per 140 fl‐od to be used coural gas deliverith the same sust pool (Palm Se applied at thied. (Flexible Soear is assumed.year / 12 mont
follows: protire year (seeculate the ge year we uct on 196 dlied by 196simulated yeings. Whensubtracted e initial instrelated to ththerefore m
1.133 per Ton the 14th
verage nethese calculathis translatethe HeatSaver two yearhorter paybaCompared ontest at thenear Palm Se at all pools
ra Energy: HeatS
HeatSavr™ ine cost of thder to cond
pment (pump
oz bottle (Flexibompletely. red was assumurface area as Springs, CA aree recommend
olutions)
hs per year us
ojected gas e Table 4.1, tas dollars sacalculated tdays per yeato simulate early ongoingn the initiafrom the saallation of the amount more savings
Therm, the monthly bsavings of tions were pes to a savinr™ system’s s at the testack period bn a per squa workout cSprings, CA.s, a smaller p
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n a real worle natural gaduct this ca
and installat
ble Solutions)
med to be constthe test pool (ea) ed rate of one
ed in calculatio
savings in therms saveaved per yeathat there war. The costhe yearly og cost is subl cost of thvings, this gthe applicatof gas saveds will see a fa
initial investilling cycle $367.59 perperformed fongs of $0.40upfront cost pool. At a lbecause theare foot basclub swimm Since the
pool will nec
Cover Analysis | 2
ld setting it as saved, anlculation th
ion labor cos
tant. (910 SqFt) in th
e fluid ounce pe
ons.
therms wered per year) ar. Based owould be at of the daiongoing cosbtracted fromhe HeatSavrgives a simplor pump is d every yeaaster paybac
tment of thafter it war year woulor a pool wit04 per squarst, (applicatolarger pool iere would bis the savingming pool ifixed cost tcessarily hav
20
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he
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re is on an ly t. m r™ le a r, ck
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Con Afterprodube a rates$0.22calcusurfadiffer Whenworkthat abovdeserfoot (coasthe dwherthis t
nclusion
r reviewing auct can lowesavings of 0 this is a sa28 of this glated to havce area of rent size poo
n we compaout club swthe savings e we estimart region of per year asstal climate) distinct advare standard pest.
all of the vaer natural ga0.56 Thermsavings of $0going towarve a simple p910 squareol.
are the currimming pooper square
ate a savingsf southern Cs estimated area. In adntage that itpool covers
ariables in tas consumpts per square.631 per sqrds the cospayback perie feet. This
ent pool inol in a coastae foot of pos of 0.56 theCalifornia, coin the prev
ddition to aut can be usecannot be u
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his study, wtion at heatee foot of suuare foot ost of the priod of 1.09 y payback w
a desert enal southern ool surface arms per squompared tovious (workutomatic appd at unattenused for safe
ra Energy: HeatS
we can conced pools. Werface area pof surface arroduct. Thyears when cwould neces
nvironment tCalifornia earea is veryare foot per savings of kout club) replication, thnded pools (ety reasons,
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clude that the estimate tper year. Area per yearhe HeatSavrconsidering ssarily be d
to the previnvironment y similar. Ar year in the 0.57 thermeport for the HeatSavr™pools withosuch as the
Cover Analysis | 2
he HeatSavrhat there wiAt today’s gar, with abour™ product a pool with ifferent at
ious test at we conclud
As mentionePalm Spring
ms per squarhe Oceansid™ product haut lifeguardse pool used i
21
r™ ill as ut is a a
a de ed gs re de as s) in
Wor ASHR Goru FlexiOctob"httphttp:/
rks Cited
RAE. (2007
usch, R. L. (1
ible Solutionber 1, 2008, ://www.flex//www.flexib
d
). ASHRAE H
1983). Facto
ns Internationfrom HeatSiblesolutionsblesolutions.
Handbook--
or analysis (2
nal Ltd. (n.davr: HYPERs.com/produ.com
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-HVAC Appl
2nd ed.). Hill
d.). Flexible SRLINK
ucts/heatsavr
ra Energy: HeatS
lication. Atla
lsdale, NJ: E
Solutions Int
r/default.shtm
Savr™ Liquid Pool
anta.
Erlbaum.
ternational.
ml"
Cover Analysis | 2
Retrieved
22
APP
Excer
PENDIX
rpt from the
2007 ASHRA
RAE manual
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ppendix I l.
ra Energy: HeatSSavr™ Liquid Pool Cover Analysis | 2
23
.
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24
Micros
Savings Csoft Excel W
Ap
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ppendix II
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ATTACHM_savings_ca
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MENT alculation.xls
Cover Analysis | 2
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25
