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

No cool transformer failed repair step by step

A test of the Avapow A68 jump starter

The little saw that could

The case for groundmount solar

Do thermostat setbacks work?

Final knee replacement video (I hope)

Wiring the single stage thermostat to the 2 stage furnace

Why electric switches must move fast

An explanation of why I use an electric duct heater with my solar system

A test of the Fanttic 9X Ultra portable compressor

Update on the Sol Ark 15 install with batteries

Quick checks for a furnace that won't work

A test of the UFO LED warehouse high bay light

Why use a 2 stage gas furnace

Spokane toilet supply electric trucks

The D day beaches of Utah and Omaha: 80 years later

The steam siphon: A story about work in the great depression

Scissor lift to replace ladders

Electric trucks Better than diesel?

Steam engineers and lunch

The Tesmen TWS-322 wire stripper multifunctional tool test

Should I clean the outdoor coil on my A/C?

ICM870-16A soft start failure update.

A rock and the Model S Tesla 4K

The log chute

A look at antique gas appliance pilot safety switches

Repairs of the gas conversion burner

Octopus furnace

The story of the sawdust screw

No fan, no compressor is it the capacitor?