Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [heat-pump]

The heat-pump is a type of central heating system that extracts heat from the outside, reversing the process used by a central air system.

For more general questions, see , , and

Related components include:

258 questions
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How can I protect a frozen heat pump in cold weather while waiting for service?

Yesterday I noticed that my Carrier heat pump was struggling to keep up with my thermostat settings inside the house. It was around 35°F (2°C) outside, I had the thermostat set at 72°F (22°C), but the internal temperature wasn't rising above 70°F. I…
user3103523
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Why would a particular heat pump model be illegal in my state?

I am trying to replace an electricity-hungry whole-house electric furnace with something that will be more cost-effective. I live in a high-altitude part of New Mexico, where I don't need to use much A/C, but need a more efficient heater for the…
Village
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How often should I run a bleach and water solution through condensate lines?

How often do you need to run a bleach and water solution through the condensate drain lines (of a heat pump) to keep the bacteria away? What are the recommended parts (e.g. 1 part bleach, 10 part water)?
Engineer2021
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Can a homeowner without a Section 608 EPA license legally connect his own gauges to his own air conditioner if the unit uses 410a refrigerant?

It has been suggested by at least one moderator on this site that EPA Section 608, which restricts who can purchase and handle refrigerant, including who can connect a set of manifold gauges to a unit, applies only to CFC and HCFC refrigerants …
user39367
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2 answers

Is it possible to upgrade A/C to a heat pump by only replacing outside unit?

I have a standard southern California tract home that was built in 2010. It has a Carrier gas-fired furnace, Carrier 5-ton A/C, and a smart thermostat. I'm slowly upgrading the major systems and replacing gas with electric wherever…
Chris O
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Choosing between hybrid and all-electric heatpump system

I live in Scotland, in an ordinary 25-year-old detached house with reasonable insulation. I have been getting quotes for heat pump installation to take advantage of the funding that is currently available while reducing both bills and dependency on…
pjc50
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What is the incremental benefit of AC canned outdoor coil cleaner?

I understand that it is possible to simply clean the AC / Heatpump coils with a gentle water spray (cooling fins are delicate). I found a can of Web coil cleaner and emptied it into 3 condensors. I have a fleet of 13 more coils: a mixture of heat…
gatorback
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Rheem Heat Pump A/C Mode Delay Cycle In Hot Weather

I have a Rheem 15PJL48A01 heat pump which has been working correctly for years, and is maintained properly. It is hot here currently and so it is operating in cooling mode. Yesterday and today, it has been very hot out. 105 °F yesterday and 103 °F…
Haney
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LED lights constantly flicker when heat pump is running

A few months ago we had our gas furnace replaced with an air source heat pump, using our existing ducts in our single level 3 bedroom house. As part of this update our electrical service was upgraded from 100 to 200 amps, and the panel was replaced…
gosko
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What causes a heatpump to freeze?

A heatpump is used to cool a home in Florida. A relative noticed that the temperature was 90 degrees and that the evaporator (see photo) was sweating. She thinks she heard a piece of ice fall break off inside the evaporator. The unit was…
gatorback
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Efficiency of a heat pump water heater during the winter

In my understanding, heat pump water heaters pump energy from the room around the water tank into the water. Clearly, this must be energy efficient in the summer time, especially if I am using AC anyway. The heat pump water heater may actually cool…
SDiv
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Why don't HVAC service people want to use outdoor temperature sensors to increase efficiency?

Here in central Virginia, most houses use heat pumps with electric auxiliary heat. I have inquired with several different contractors about installing outdoor thermostats on my units to 1) disable the use of auxiliary heat above a set outdoor…
RJ Braden
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Is transitioning to all electric heating smart?

I am in the process of overhauling my home heating and plumbing. I bought a 2600sq/ft 1980s Cape Cod in southern Maine on the coast. I've reinsulated the walls and roof and am continuing to make improvements in sealing the house. Overall, the…
Chuck D
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Air handler condensation draining problem

For the life of me, I cannot figure this out. My air handler and heat pump were installed in 2006 and work great. For the first summer since I've owned the home, condensation started to not drain properly and is leaking onto the filter and onto…
Evil Elf
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How effective is a heat pump for AC and a heat pump/furnace for heating in New England?

We currently have a central AC unit and oil furnace. The AC is broken and the furnace is old, so we are thinking of replacing both sometime in the next year. We are considering replacing the AC with a heat pump and the oil furnace with a gas…
Mama
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