THE TRADE IS BETTER WHEN WE HELP EACH OTHER
Real jobs.
Useful answers.
No bull.
A place for HVACR and building performance people to talk shop, work through problems, and pass on what they’ve learned.
Stuck on a job? Show us what you’re seeing. Found a better way? Pass it on.
Sign in with your HVAC School account →Use your existing account. Registration is available on the sign-in page.
Residential HVAC
Everyday HVAC diagnosis, service, installation, and repair in homes.
Building performance & science
Building performance, high-performance HVAC, and building science together: airflow, design, ducts, moisture, envelopes, and commissioning.
Light commercial HVAC
Rooftop units, split systems, ventilation, maintenance, and diagnosis in light commercial buildings.
Food service & convenience store refrigeration
Refrigeration for convenience stores, restaurants, and other food service: walk-ins, reach-ins, ice machines, and the work around them.
Grocery refrigeration
Supermarket cases, racks, refrigeration systems, and the conditions behind reliable operation.
Controls
Sequences, sensors, wiring, controls, and system integration across HVACR applications.
VRF & VRV
Variable refrigerant flow and variable refrigerant volume systems: installation, piping, controls, commissioning, service, and diagnosis.
Chillers & industrial systems
Chillers, ammonia, large central plants, industrial refrigeration, and other large systems.
Business & leadership
Leading crews, mentoring, hiring, customer communication, running a trade business, and building a team people want to stay on.
General discussion
Talk shop. Field photos, tools, lessons, symposium conversations, and questions that cross trades.
Stay curious, not judgmental.
Technicians, contractors, consultants, specialists, and instructors. Residential HVAC, building performance and science, light commercial HVAC, food service and grocery refrigeration, and controls. You don’t need a perfect question to belong here.
Disagree with the diagnosis. Explain your reasoning. Treat the person with respect.
One useful commercial mention. No repeated selling, spam, or aggressive behavior. Team removal also ends account access and event eligibility. You must agree to the rules before joining in.
Read the community rules →