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Comprehensive Contractor Fundamental Guide to Home Performance
The Contractor Guide to Home Performance
Catalog Price: $24.95
Our Price: $24.95

This is a 52 page, full color fundamental guide to home performance by experienced trainer and energy detective, Hap Haven.  Hap has been there and done that.  He explains the energy analysis process clearly and soup to nuts organized process, with lots of illustrations.
A Guide to Mechanical Ventilation to Improve Indoor Air Quality
Residential Ventilation Handbook
Catalog Price: $69.95
Our Price: $52.45
You save $17.50!

A handbook and guide to residential ventilation systems written by Heyoka Solutions Chief Investigator, Paul H. Raymer.  It is designed as a practical guide to help select, install, and maintain residential ventilation systems.