With colder weather coming at what temperature should you switch to emergency heat or is it even necessary. I have a 2yr old Trane 16 seer. Thanks

As cold and humid as it is now in most places I would switch to Emergency Heat.

What is Emergency Heat?

Emergency heat is where you go to using electric heat strips on a heat pump type system.

To answer the question, when the unit won't cycle off normally at your desired temperature. Just fair warning, they say it causes your electric bill to go sky high as you're using basically just an electric furnace. I had a standard a/c unit with an electric furnace most of my life. The electric bill in the winter was always a bit cheaper than in the summer...so I don't know if that's true or not. This is my first year with a heat pump.

Mine kick in as needed

Emergency heat is when you want to pay your utility company more $$$. LOL

My heat pump has a very effective Defrost Mode. In the 6+ years in this house I ran the Emergency Heat one time. It jacked up the electric bill to almost double. Never used it since, even when we got down into the mid to low teens.

cheaper and more efficient to go buy some electric radiators and put them in ea. room you use, they do a good job and are not all that expensive to run.

Don't have a heat pump. Brand new electric heater. Bill is going to be very high for this month.

You pay for electric heat with watts used. No way to get around it. Fancy 'energy efficient ' gadgets still use watts.

I have a ceramic space heater in our master bedroom as it gets cold AF in there for some reason while the rest of the house is toasty with the central heater set at 70.

Gets hotter than hades in there in the summer and I got that little portable AC unit for that room in summer.

Hope this helps.

I wonder if the air duct for that room is damaged in someway.

They might have done like I had on a house. They had used cord to hold a couple ducts up off the insulation in our San Antonio house. Problem was, the cords basically folded the ducts in half and had them touching the ceiling. Once new hangers were installed for those 2 ducts to loosely hold the ducts about half way between the insulation and the ceiling, the rooms they went to were much better.

Edit on how I fixed it: I cut a few 1x6 pieces and put the cord thru the ends, with the duct resting on the 1x6 swings.

Below 32 degrees