from Flexiheat

It provides you with flexibility in choosing your preferred

fuel source

Waste/Multi Oil Boilers

At a time of rising fuel costs, the Flexiheat FMOB universal/waste oil boiler range, which can burn nearly

all vegetable, animal, conventional and waste oil, will

save you money.

Steel boiler for pressurejet gas/oil burnerReversed flame boiler range forpressure jet burners, suitable forsmall/middle size installations, wherethe traditional sturdiness and durationof the steel are favoured.

Dry combustionchamber with anti-condensate patentThe combustion chamber walls thatlean out to the flame are not directlycooled by the water because coveredby a series of triangular fins, welded

DIMENSIONS

500

1

EB

3

T4

T2T3

T1

H

F

A

T52

P

G

D

C

478

4

Key: 1 - Panel board 2 - Flame sight glass 3 - Boiler basement (up on request) 4 - Cleaning openingT1 - Central heating flowT2 - Central heating returnT3 - Chimney connectionT4 - Boiler drainT5 - Burner connection

TECHNICAL DATA

(*) Pressure losses for a flow rate corresponding to a ∆t of 15 K

kW

kW

l

m c.a.

m mc.a.

bar

ISO 7/1

mm

mm

mm

mm

kKGg

Models

30

33

50

0.09

2.8

4

Rp 1

570

640

775

580

140

44

48

67

0.12

4

4

Rp 11/4

660

730

815

630

210

52

57

67

0.15

3.7

4

Rp 11/4

660

730

815

630

210

to each other and to the furnacecylinder so that to form a drycombustion chamber. This improvesnotably the combustion in comparisonto that one obtained in the wetcombustion chamber, reducing thefouling of the heat exchange surfacesand the risks of acidic condensateformation, responsible of the corrosion.The bottom of the combustionchamber, constituted by a refractoryconcrete casting, contributes tocomplete the raising of the combustiontemperature, improving it.

Anti-condensate smokewayThe smokes continue their run withinboiler in the channels drawn betweenthe triangular baffles and the furnacecylinder in contact with the water.The particular processing of the baffleswith interrupting joints, annuls thethermal expansions and, thanks tothe wide surface that is heated, itsubsequently reduces thecondensation phenomena (patentedsystem).

Stainless steel turbulatorsAdjustable inside the smoke channels,they optimize the heat exchange andstabilize the counter pressure for theregular operation of the burner.

NOMINAL OUTPUT

NOMINAL INPUT

BOILER CONTENT

WATER SIDE PRESSURE LOSSES *

SMOKE SIDE PRESSURE LOSSES

MAX. WORKING PRESSURE

FLOW/RETURN CONNECTIONS

DIMENSIONS A

B

C

D

DRY WEIGHT

FMOB

• Warm water steel boiler for temperature up to 95°C• Total radiation, dry, anti-condensate combustion chamber• Hinged door with reversible opening• Output from 26 to 233 kW

26

28

48

0.09

2.5

4

Rp 1

570

640

675

480

120

FMOB26 FMOB30 FMOB44 FMOB52

4 Sight glassT1 C.H. flowT2 C.H. return

T3 Flue connectionT4 Burner axisT5 Boiler drain

1 Panel board2 Burner connecting plate3 Cleaning door

(64)55.000

(76)65.000

(93)80.000(105)

90.000(116)

100.000(140)

120.000(163)

140.000(186)

160.000(233)

200.000

690

690

690

760

760

760

760

760

860

722

722

722

812

812

812

812

812

937

990

990

990

1205

1205

1205

1385

1385

1437

190

190

190

190

190

190

190

190

190

305

305

305

350

350

350

350

350

421

480

480

480

500

500

500

500

500

580

115

115

115

130

130

130

130

130

165

--

--

--

--

--

--

--

--

1482

200

200

200

200

200

200

200

200

250

130

130

130

180

180

180

180

180

180

Rp ¾

Rp ¾

Rp ¾

Rp ¾

Rp ¾

Rp ¾

Rp ¾

Rp ¾

Rp ¾

86

86

86

126

126

126

151

151

203

0,10

0,13

0,16

0,10

0,10

0,14

0,20

0,25

0,22

1,5

1,8

2,5

3

3

5

8

14

18

5

5

5

5

5

5

5

5

5

MODAL

Type

Output

(kW)kcal/h

Input

(kW)kcal/h

Weight

kg

Max.allow.

workingpressure

bar

Smokeside

press.losses

mm w.c.

Water sidepress.loss(*)

m w.c.

Boilercapacity

liters

T5

ISO 7/1

T4Ø

mm

T3Ø

mmH

mmG

mmF

mmE

mmD

mmC

mmB

mmA

mm

DIMENSIONS

Rp 1½

Rp 1½

Rp 1½

Rp 2

Rp 2

Rp 2

Rp 2

Rp 2

DN 65

(71)61.000

(84)72.000(102)

88.000(115)

99.000(128)

110.000(155)

133.000(180)

155.000(206)

177.000(258)

222.000

330 x 670

330 x670

330 x 670

390 x 850

390 x 850

390 x 850

390 x 1030

390 x 1030

470 x 1070

Combustionchamber

dimensionsØi x Lg

mm

fig. 2* - For the model FHMOB233 the connections T1-T2 are flanged.The dimension H is applicable only to the model FMOB233

195

195

195

280

280

280

318

318

420

T1 - T2ISO 7/1

UNI 2278 PN16

CONNECTIONS

FMOB140

FMOB163

FMOB186

FMOB233

FMOB64

FMOB76

FMOB93

FMOB105

FMOB116

Day Tank

With all our heaters we can supply a 100L day tank. This tank comes complete with

a pump, motor and fuel filter as standard.

This day tank needs to be situated next to the heater. The main advantages of the tank are;-

• Via float suction it picks up the cleanest oil

• It picks up the latent heat from being in close proximately to the heater resulting in the oil being semi-

preheated prior to entering the burner.

• The tank also has a drainage point at the bottom allowing easy drainage of any water/contaminants

from the oil. This results in the oil being semi-preheated prior to entering the burner.

** You can run your bulk storage tank supply to this day tank but you will need a float switch and solenoid valve to

prevent oil overflow due to gravity

Flue gases cannot rise in a horizontal stack and bends also restrict their movement. If flue bends

are used then we recommend 45° bends instead of 90° and a gradual sloping stack

* Do Not – Use Unused Engine Oil – it doesn’t burn very well at all. * Synthetic Oils – If your oil is all synthetic then you must add at least 15% Heating oil /Diesel to ensure reliable starting. If the synthetic oil content is more than 50:50 to mineral oil, in your waste oil, then youmust add at least 15% Heating oil/Diesel to ensure reliable starting.

* NO – Water, Petrol, Paint Thinners * NO – Brake or Clutch Fluid * NO – Anti Freeze

Fuel’s – Please Ensure The Following -