Tradesmithery · free · a residential split system, running
See how HVAC actually works
Spin it · explode it · follow the refrigerant, the air, the gas and the flue
Every part moves the way it really does. No test procedures, no jargon.
The full course — every system, every sequence, $29 once — is coming. Leave your email and you'll be first to know. No spam; one message when it's ready.