HVAC Calculator Load Pro

Trusted by Home Service Professionals!
HVAC Calculator Load Pro is the fastest, easiest & most accurate way to size HVAC (furnace, air conditioner) equipment and Natural Gas appliances in the home.

Unlike generic manual j calculations, HVAC Load Pro is built specifically for HVAC professionals who want to generate more revenue and be more efficient with their time. With built-in climate data, wind factor considerations, and reporting tools, you’ll build better trust, win more bids, and deliver professional comfort solutions to your clients.

Whether you’re replacing a furnace, adding air conditioning, decoding the age of a hot water tank or adding natural gas appliances, HVAC Load Pro ensures you size equipment correctly - avoiding costly mistakes, in half the time!