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My heat pump
My heat pump
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Old 8th February 2018, 04:44 PM   #1
Ripcord is offline Ripcord  United States
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Default My heat pump

So the heat in my house is a heat pump. Apparently it has a feature that when it drops below a certain temperature a resistive heat coil turns on automatically to supply additional heat. It's basically a big wire coil. Very inefficient. It doubles my electric bill during the coldest months. I'm thinking, wouldn't there be a better way to supply this extra heat. What makes heat while drawing little current? I thought about disconnecting it but haven't really opened up the unit to see how feasible it would be. Any ideas? Could I replace the coil with something else that makes heat while drawing very little current?
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Old 8th February 2018, 04:53 PM   #2
VenusFly is offline VenusFly  Australia
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My heat pump
You could replace the source of heat with another energy source such as gas or kerosene so that the heat pump doesn't have to turn on its coil.

That would be the safest and logical approach to this problem.
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Old 8th February 2018, 05:24 PM   #3
TheGimp is online now TheGimp  United States
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I turn mine off and use a pellet stove as auxiliary heat. Iused to use a wood stove at my last house.

Unless you have gas available at a lower cost per btu-hr, and are willing to add gas heat, you are pretty much out of luck.
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Old 8th February 2018, 05:38 PM   #4
HankF is offline HankF  United States
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Propane is a very high BTU energy source. Natural gas a bit less, as I recall. If you can't do either, the pellet stove might be your best bet.
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Old 8th February 2018, 06:31 PM   #5
globalplayer is offline globalplayer  Germany
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Solar panels, accumulators, charge controller and a inverter.
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Old 8th February 2018, 11:48 PM   #6
Ron E is offline Ron E  United States
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Quote:
Originally Posted by Ripcord View Post
What makes heat while drawing little current?
Ground source heat pump.
Natural gas or propane furnace - usually costs <1/3 of electric for heating in the USA.
You could try a hot water coil heated by a gas water heater (w/ circulating pump), etc...
Solar thermal and energy storage could work depending on a number of factors

The best suggestion comes from having all the info. What do you have, how is the heat distributed, what alternate forms of energy do you have available on site? etc...
What state do you live in? etc... What direction does your house face, etc...
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Last edited by Ron E; 8th February 2018 at 11:54 PM.
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Old 8th February 2018, 11:57 PM   #7
5th element is offline 5th element  United Kingdom
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I figure I should point out that electric heaters are pretty much 100% efficient in that they turn almost all the electrical energy into heat.

Something that draws much less current will obviously provide much less heat and you'll have a cold house.

As to reducing heating costs, as others have said, you need a different energy source.
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Old 9th February 2018, 12:12 AM   #8
billshurv is online now billshurv  United Kingdom
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My heat pump
Quote:
Originally Posted by globalplayer View Post
Solar panels, accumulators, charge controller and a inverter.
How much power are you going to get in mid winter? I doubt you'll store enough to provide any form of effective heat boost.

I'm a stove fan so would top up with that. But I'm suprised the heatpump isn't sized for all year. Is it ground or air source?
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Old 9th February 2018, 12:21 AM   #9
jackinnj is offline jackinnj  United States
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My heat pump
coal stove -- more btu's per dollar. or you could use lignite or pete.
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Old 9th February 2018, 12:22 AM   #10
billshurv is online now billshurv  United Kingdom
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My heat pump
I'm odd. I actually like chopping wood!
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