How Do I Know If My Furnace Heat Exchanger Is Bad?

How Do I Know If My Furnace Heat Exchanger Is Bad? Strange smells. A malfunctioning heat exchanger will often create an unpleasant and strong odor that smells similar to formaldehyde. Soot Build-up. … Corrosion & Cracks. … Change in the flame appearance. … Audible Sounds. … Presence of Carbon Monoxide. Can you fix a furnace

What Should A Thermostat Differential Be Set At?

What Should A Thermostat Differential Be Set At? To optimize both temperature- and humidity-comfort control, and to protect against excessive equipment cycling, the cooling differential should be between 0.8°F and 2°F; the heating differential should be between 0.5°F and 1°F. A heating differential below 0.5°F is too narrow and causes excessive cycles. What is the