Weatherization Assistant Update

(Version 8.3)

Michael Gettings

Oak Ridge National Laboratory

Platform Requirements Dropped support for Windows 95 and 98 Added conditional Vista support

– Only NEAT operates under Vista (8.3.3.5)– Help utility requires additional download from Microsoft

– Have limited history of operation on Vista machines

NEAT Version 8.3 Changes

Adds specification of wall stud depth

NEAT Version 8.3 Changes

Evaluates insulating wall cavities with existing batt, blanket, or board insulation

Adds R-49 attic and R-38 floor insulation measures

Adds specification of floor joist depth

NEAT Version 8.3 Changes

Reformatted Foundations data input form

NEAT Version 8.3 Changes

Extended user-defined insulation types

NEAT Version 8.3 Changes

Adds fuel switching for fossil fueled heating equipment

NEAT Version 8.3 Changes

Evaluates replacing electric heating systems– With other electric resistance heaters– With heat pumps

NEAT Version 8.3 Changes

Evaluates installation of heat pump with no existing AC

NEAT Version 8.3 Changes

Evaluates installation of heat pump replacing existing window ACs

NEAT Version 8.3 Changes

Treats kerosene heating systems the same as oil systems

Allows space heater replacement to eliminate secondary heating systems

Fixes bug associated with replacing space heaters

MHEA Version 8.3 Changes

Considers window descriptions individually for retrofit recommendations

Adds window sealing (“Weatherize”) measure

Adds “Retrofit Option” field to window form

MHEA Version 8.3 Changes

MHEA Version 8.3 Changes

Modifies heating system tune-up measure, decreasing efficiency increase as existing efficiency increases (similar to NEAT)

Provides separate costing of measures applied to mobile home and addition

8.3 Changes in NEAT & MHEA

The “Assigned To” field on the Audit Information tab is no longer required

Drop-downs with only one possible selection are automatically filled in

When creating a new blank audit, the Client ID is no longer filled in by default

8.3 Changes in NEAT & MHEA

8.3 Changes in NEAT & MHEA

Provide “Additional Cost” fields for each window retrofit option

8.3 Changes in NEAT & MHEA

Allows viewing adjusted refrigerator consumption estimate without evaluating replacement

WA General Changes

Application opens with window sized for 1024x768 resolution

Data sheet views are no longer persistent

Increased number of reports with alternate data sheet view for exporting results to spread sheet