17:49 Explaining "Gas Furnace Basics, Operation, Efficiency, Parts" to Your Apprentice! AC Service Tech LLC 203.5K views - 4 years ago
3:34 5 Gas Furnace Parts That MUST BE CLEANED or the Unit will Fail and Won't Heat! AC Service Tech LLC 357.6K views - 3 years ago
1:20:49 Gas Furnace Training Class! Basics, Operation, Components, Troubleshooting AC Service Tech LLC 879.8K views - 3 years ago
1:49 What's the most efficient type of electric heater? Multnomah County Deptartment of Human Services 372K views - 7 years ago
6:12 HVAC Training Basics for New Technicians and Students! Refrigeration Cycle! AC Service Tech LLC 1.3M views - 3 years ago
5:19 The your heat exchanger is cracked so your furnace must be replaced scam grayfurnaceman 292.2K views - 10 years ago
5:23 What are the Pros and Cons of Heat Pumps? Monkey Wrench Plumbing, Heating, Air & Electric 232.1K views - 2 years ago
6:24 Geothermal 101 - How to Heat Your Home with 400% Efficiency Green Energy Futures 77.9K views - 3 years ago
13:32 NO HEAT at 2AM! Burnham Steam Boiler Sight Glass CRACKED & Leaking Mikey Pipes - Pipe Doctor Plumbing & Heating & Air 4.1K views - 11 hours ago
5:06 Mini-Split Running CONSTANTLY! 6 Reasons Why! HVAC Guide for Homeowners 103.5K views - 3 years ago
5:23 Heating Your House Efficiently with a Wood Burning Fireplace or Stove Hartz Homestead 791.9K views - 8 years ago
2:22 HVAC: Energy Efficient Measurements (Heating and Air Conditioner Service Tips - Union, MO) Heating and Cooling Experts in Washington, MO - ( HVAC, Air Conditioners, St. Louis, Missouri) 1.6K views - 14 years ago