HEATKEYS

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

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.

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

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.

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...

IOPscience is a unique platform for IOP-hosted journal content providing site-wide electronic access to more than 130 years of leading scientific research, and incorporates some of the most innovative technologies to enhance your user-experience.

Roof-top Curb Adpaters that retro fit any new HVAC Unit to Old Curb Ductwork.

Engineering information and connections for the global community of engineers. Find engineering games, videos, jobs, disciplines, calculators and articles…

Forums for the Home. These forums are actually meant to be useful...but they can still be fun!