Nate “The House Whisperer” Adams is the author of The Home Comfort Book and the Air Sealing Course. He’s helped numerous clients in Cleveland Ohio electrify while making their homes healthier and more comfortable since 2014. He’s been interviewed by the New York Times, Washington Post, NPR, ACHR News, and many other outlets.

He’s taught numerous HVAC contractors how to electrify homes and has popularized the AC to heat pump movement, was a co-author in the Hybrid Heat Homes paper, and consulted on the congressional HEATR and COOLER Acts that came out of that paper.

He’s now focused on teaching mainstream consumers what to look for in a new HVAC system to make their home truly healthy and comfortable, which almost always involves a heat pump. He also consults with HVAC companies to help solve sticky building science based problems.

Eric Fitz is the Co-Founder of Amply Energy, a software company helping HVAC professionals design heat pump systems faster, more accurately, and with less hassle. Amply’s platform offers real-time Manual J load calculations, 3D floorplans, and beautiful proposals that help contractors close more jobs and save valuable time.

Before Amply, Eric led electrification retrofits across New England, designing HVAC, weatherization, solar, hot water, and EV charging upgrades for dozens of homes. He serves on ACCA’s Manual J technical committee and has a deeply worn copy of Manual J8 v2.5, has a passion for building science, and 20+ years of experience designing hardware and software products at General Electric, Guidehouse, and Advanced Energy United. Eric holds a masters in Mechanical Engineering and is Design for Six Sigma certified.