It is a total line thermostat
2006-11-23 06:02:57 · 6 answers · asked by Dan the man 2 in Home & Garden ➔ Maintenance & Repairs
It would operate th second stage of your heating system,ie.your first stage is aheat pump,second stage electric resistance heat or gas furnace,if you know there is something wrong with firsdt stage it allows you to bypass it.In normal operation second stage will come on if set point is 3 degrees away from room temp,or by time if first stage does not satisfy.
2006-11-23 06:15:12 · answer #1 · answered by Scott EThe anode rod inyour hwh 2 · 3⤊ 0⤋
EMergency HeaT
The Emergency Heat switch on a Heat Pump thermostat confuses many people. The fact of the matter is that most people don't seem to understand exactly what Emergency Heat is and when they need to use it. Many people think that Heat Pumps don't work in cold weather and they are supposed to use the emergency heat whenever it gets really cold... Wrong!
What is Emergency Heat?
Simply put, all Heat Pumps in northern climates [below 35 degrees] need a supplemental heating source. Usually it is in the form of electric resistance heating. This is an all-electric Heat Pump. It can be a gas, oil, or hot-water back-up system as well. The supplemental heat is also referred to as "second-stage" or "back-up" heating, "first-stage" being the Heat Pump only. The supplemental heat is also what is used as the Emergency Heat.
Different systems have different ways of determining when the second-stage comes on to assist the heat pump but it is always done automatically. So the two stages will work together in the colder months and it is not necessary to switch your thermostat to Emergency Heat. Now we know what supplemental heat is and that it is also used for Emergency Heat.
So when do I actually use the Emergency Heat?
As the name implies, it is only used in emergency situations. It is used when there is something wrong with first-stage heating [the Heat Pump itself]. In other words, if you notice your house is cold and it isn't heating properly and you went outside and noticed that a tree fell and crushed your heat pump, that would be a good time to switch to Emergency Heat.
2006-11-23 06:22:47 · answer #2 · answered by Bill N 3 · 5⤊ 0⤋
Total Line Thermostats
2016-10-31 22:54:01 · answer #3 · answered by Anonymous · 0⤊ 1⤋
EMHT is emergency heat. Usually, your heating system will cycle through blowing out hot air and running the fan to keep the air circulating, but emergency heat is a constant stream of hot air. It's not meant to be used on a regular basis as it's very expensive to run.
2006-11-23 06:13:26 · answer #4 · answered by Katie A 2 · 3⤊ 0⤋
Its emergencey heat, it will activate a coil (like a toaster) adding extra heat to help your regular heating source.
2006-11-24 04:36:54 · answer #5 · answered by Chris H 2 · 2⤊ 0⤋
Thanks for the answers.... just goes to show that at 65, I'm STILL able to learn things! =D
2016-01-02 01:49:20 · answer #6 · answered by PEGGY 1 · 2⤊ 0⤋