Weatherization Assistant Version 8.4
This version provides all of the optional administration features provided in Version 8, but does not contain the technical improvements featured in more recent versions. Compared to version 8.3, this version provides the improved, field-validated revision of MHEA recommended for use by the MHEA Steering Committee that more accurately predicts the energy savings of mobile home weatherization measures. This version also runs on both the Vista and XP computer operating systems, includes some modeling changes in NEAT to improve accuracy, offers expanded capabilities to include or exclude mandatory measures in the calculation of the total SIR for the house, and allows multiple ducts requiring insulation to be described. See the Update History
for a more detailed listing of the improvements made in this and more recent versions of the Weatherization Assistant. Use of the optional Geographical Information System (GIS)
to map client's residences requires an additional download and installation of two files. Click on the links below to download the latest release of Version 8.4 and associated materials for this version:
-The latest executable installation file for Version 8.4 released on January 30, 2009.
Getting Started Guideline
-Guideline that describes how to initialize a new installation of Version 8.4 of the Weatherization Assistant, create a new client, and start an energy audit for that client.
-Installation note for Version 8.4 on use of the Help feature with Vista.