HEATKEYS

Information for Amateur Radio, Broadcast, Radiotelecommunication & Monitoring Stations.

Building in California is a statewide guide to the California Building Codes

This site provides weatherization practitioners and other energy conservation professionals with information related to the Weatherization Assistance Program (WAP), its on-going operations, and its partnerships with stakeholders.

Commercial Kitchen Ventilation Systems - Exhaust Hoods, Exhaust Fans, Heaters and Make-Up Air - Sustainable Technology For Kitchen Ventilation Design

Slide charts, wheel charts, slide rule style calculators. Design, development and production in our plant. Free design consultation & sample.

Get an accurate heat loss calculation or heat loss

PDHonline.org offers Engineering Continuing Education PE PLS LS AIA RA web-based PDH professional development courses for license renewal - civil structural mechanical electrical chemical engineering course hours units credits PDHs continuing educ...

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.

Tools and Basic Information for Design, Engineering and Construction of Technical Applications

HVACcharts.com is your source for superheat, subcooling and a variety of other refrigeration calculators.

Hydro-Temp is the manufacturer of Geothermal water source heat pumps. We Custom Build each central heat and air system, Geothermal Heat pump, Water source Heat pump, Ground source heat pump, dehumidifier, Pool heater, Hot water heating, Priority, ...