grayfurnaceman

HVAC serviceman and instructor with 35 years of experience passing on the knowledge.

DIY HVAC guy busted
DIY HVAC guy busted
No cool transformer failed repair step by step
No cool transformer failed repair step by step
A test of the Avapow A68 jump starter
A test of the Avapow A68 jump starter
The little saw that could
The little saw that could
The case for groundmount solar
The case for groundmount solar
Do thermostat setbacks work?
Do thermostat setbacks work?
Final knee replacement video (I hope)
Final knee replacement video (I hope)
Wiring the single stage thermostat to the 2 stage furnace
Wiring the single stage thermostat to the 2 stage furnace
Why electric switches must move fast
Why electric switches must move fast
An explanation of why I use an electric duct heater with my solar system
An explanation of why I use an electric duct heater with my solar system
A test of the Fanttic 9X Ultra portable compressor
A test of the Fanttic 9X Ultra portable compressor
Update on the Sol Ark 15 install with batteries
Update on the Sol Ark 15 install with batteries
Quick checks for a furnace that won't work
Quick checks for a furnace that won't work
A test of the UFO LED warehouse high bay light
A test of the UFO LED warehouse high bay light
Why use a 2 stage gas furnace
Why use a 2 stage gas furnace
Spokane toilet supply electric trucks
Spokane toilet supply electric trucks
The D day beaches of Utah and Omaha: 80 years later
The D day beaches of Utah and Omaha: 80 years later
The steam siphon: A story about work in the great depression
The steam siphon: A story about work in the great depression
Scissor lift to replace ladders
Scissor lift to replace ladders
Electric trucks Better than diesel?
Electric trucks Better than diesel?
Steam engineers and lunch
Steam engineers and lunch
The Tesmen TWS-322 wire stripper multifunctional tool test
The Tesmen TWS-322 wire stripper multifunctional tool test
Should I clean the outdoor coil on my A/C?
Should I clean the outdoor coil on my A/C?
ICM870-16A soft start failure update.
ICM870-16A soft start failure update.
A rock and the Model S Tesla 4K
A rock and the Model S Tesla 4K
The log chute
The log chute
A look at antique gas appliance pilot safety switches
A look at antique gas appliance pilot safety switches
Repairs of the gas conversion burner
Repairs of the gas conversion burner
Octopus furnace
Octopus furnace
The story of the sawdust screw
The story of the sawdust screw