General discussion
Hello,
Hello, I am looking for a simple animation software to use in my classroom to draw out refrig cycle electrical diagrams etc. would be nice if it worked directly with a clever touch screen bo…
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.
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Building performance & science
I’ve been building a few HVAC calculators, and I’d like some feedback from the No Bull crew. They’re…
I’ve been building a few HVAC calculators, and I’d like some feedback from the No Bull crew. They’re free to use, with no login required. • Filter Pressure & Airflow — Check clean-filter pre…
Residential HVAC
For the Techs that service vented or ventless gas logs. What is the white powder that I’m seeing…
For the Techs that service vented or ventless gas logs. What is the white powder that I’m seeing that collects on the logs and surrounding areas? Recently serviced a customers ventless propa…
General discussion
My personal opinion, for what it's worth.
My personal opinion, for what it's worth. Our trade needs new blood, and so does just about every other trade. No fake news there. The good news is that trade schools keep getting more popul…
Food service & convenience store refrigeration
My real world experience has been in HVAC, but I’ve read “Refrigeration for HVAC techs” a couple of…
My real world experience has been in HVAC, but I’ve read “Refrigeration for HVAC techs” a couple of times and watched an abundance of Nor-Cal Dave and Chris from HVACR Videos :) I got lucky…
Residential HVAC
I have a Trane heat pump, model number XP14-024-230, and the homeowner heard the unit make a crazy…
I have a Trane heat pump, model number XP14-024-230, and the homeowner heard the unit make a crazy noise when it came on that sounded like fireworks. The contactor was being pulled in and th…
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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.
Hall of Fame / Hall of Shame
Share work you are proud of, surprising finds, and the lessons in your field photos. Albums also belong to your personal galleries.
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.
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