Derek ColeGM, Simmons One Hour Heating & Air · AI HVAC Answers

Steam and Noise || HVAC #shorts

14 Jan 2023 · 1 min

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This content was created by Derek Cole. This content was uploaded by Derek Cole. This is a YouTube short titled "Steam and Noise || HVAC #shorts" (created 2023-01-14) featuring a single speaker (labeled SPEAKER A) giving an informational explanation about heat pump behavior in cold weather. The speaker describes how electric heat pumps rely on auxiliary/backup heat during temperatures below about 40°F, and how defrost cycles melt frost on the outdoor coils—producing steam and causing the backup heat to activate to maintain indoor set points.

Questions this video answers

Anytime it gets below 40 degrees outside (below ~40°F).

Derek Cole.

2023-01-14.

Chapters

If you have a heat pump, if you have electric heat pump in the house, the backup heat is going to come on. During this type of weather, the backup heat or the auxiliary heat really has two purposes, mainly defrost cycle, and is to supplement your heat pump. Anytime it gets below 40 degrees outside, your heat pump really needs help keeping that set point in your house. It's going to frost over. As it extracts heat from the air outside, the coals out there in the unit are going to frost over. It has to go into what's called a defrost cycle. So that defrost cycle is actually going to burn or melt the frost off those outdoor coals. And when that happens, steam will rise and your bag of heat will come on. Because.