HEATKEYS

Ductwork - DIY heating and cooling product sales for the Do-It-Yourself home owner. We have over 50,000 HVAC parts available to us including: Furnaces, AC, Heat Pumps, Custom/Standard duct work, Insulated fiber ductwork and replacement parts. Ductwo...

A great site for HVAC design, Energy Star ratings,PA Home Energy,and duct design,Residential,heat loss and heat gain calculations.energy comparisons, block load calculations, multi-zone calculations, room by room calculations for all types of heating

Do it yourself home improvement and diy repair at Doityourself.com. Includes home improvement projects, home repair, kitchen remodeling, plumbing, electrical, painting, real estate, and decorating.

DIY Repair and Home Improvement forum. Helping You to Do It Yourself!

Central Air conditioning brand name air conditioners and heating systems sold to you with FREE shipping! Air conditioning pricing with live phone support..

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

The #1 HVACR Community

A journey through the mystical world of HVAC design. A manual J calculation and a manual D calculation can be enlightening. Discover how your home can be as comfortable as you had dreamed.

Contracting Business is the leading business-to-business magazine for commercial, residential, and industrial contractors in the heating, ventilation, air conditioning and refrigeration industries.

ToolBase is the home building industry

Architecture and Building Science