Gas Furnace Basics: Part 3
submitted by Davey Lopez
on 07/16/14
1
Attempting to diagnose the cause of a high CO reading, Mike searches for cracks in the heat exchanger, checks gas orifice size, and measures the gas pressure in Part 3 of this series. For a high-res version of this video, please visit: www.weatherization.org/wxtv6p3
