DEBATE: About Heat Pumps in Winter

Discussion in 'House and Home' started by Gardiner, Nov 27, 2017.

  1. Dewie

    Well-Known Member

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    But it isn't; if it's pouring the heat into the slab all night when it's -20, then you get a warm sunny day, suddenly all that heat is in the slab and radiating off. The heat source putting heat into the floor because it's too warm. Ambient air around the thermostat stays warm and the slab cools down. If you have a particularly sunny day which keeps the air inside warm then no heat is put into the slab during the day. Bring on the next cold night again and it gets cold because the slab has coolded down. Repeat cycle.

    I'm told you're better off having the floor maintained at a lower temperature than what you actually want for a room temperature (with thermometers measuring the floor temperature) and using a heatpump/forced air to maintain the air temperature accordingly.

    It's amazing how little heat in the floor it takes to still be nice/comfortable. A buddy of mine keeps his garage at 10c and it makes all the difference in the world.

    In rooms like the bathroom where you get out of the shower onto the floor in bare feet it's nice to have the floor a bit warmer for sure but for the rest of the living area
     
  2. Scott

    rawr

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    I know our system monitors the outside temperature as well. I don't find we have large swings and it stays pretty constant in the house. We basically set it and leave it.
     
  3. Boots

    www.reality-check.ca

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    Yep.. -38 vs -8 :rofl:
     
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  4. Mitch

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    First world problems
     
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  5. Dewie

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    Ideal! I'd be curious to see how consistent it is in the house. Is yours in the basement or something done upstairs also?
     
  6. Scott

    rawr

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    its basement and main floor.
     
  7. Duggan

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    The humidity would come into play here.
     
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  8. hank

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    As others have alluded to: hear pumps are not the end all be all that people make them out to be. We are in an older house that had an add on built on a slab and fairly drafty so you need slippers in the bedrooms. Heat pumps are fine most of the time but these temperature swings we have been experiencing are not ideal.
     
  9. Gardiner

    Gardiner
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    I think I've come to the same conclusion:hammer:
     
  10. 17

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    teenage dirtbag

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    My house is newer with open concept. My heat pump has been fantastic. Probably the best money I’ve spent in a long time.
     
  11. Arod

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    Moral of the Story is that not every heating system is ideal for every house. My house is a bit older, with more defined rooms that modern builds and our two pumps heat the home fairly evenly. Of course we spend a lot of time planning sizes and locations of the heads.
     
  12. Michael

    Hole digger

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    I’m on off peak billing with our in floor heat. Argo boiler. Was thinking about putting in one of those outdoor monitors in to soften the call for heat on warmer days. I believe they are called an external reset switch. Gonna have to do some research
     
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  13. Michael

    Hole digger

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    It’s actually called a setback switch. Lowers the water temp delivered based on outside temp.
     
  14. Michael

    Hole digger

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    And I’m an idiot cause there’s one installed
     
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  15. 17

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  16. Dewie

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    Right now is ideal heatpump weather in Atlantic Canada...

    If your house is that drafty though you're MUCH better off investing in tightening it up. All the insulation in the world won't matter if you can't keep the warm air inside.
     
  17. hank

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    It's a rental so no investment from me.

    Its drafty to the point that at 0 degrees outside a setting of 19 will yield 19 but below zero you need to set to 21 to get 19 inside. Then the temperature rises again and its 21 inside... No set it and forget it.

    I also prefer it to be cold at night to sleep but turning the heat pumps down and back up is not very effective. Forced air oil was ideal for this but much more $$
     
  18. clicker666

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    My heat pump supports my electric baseboard and gives me ac in the summer, where I only used room fans before. My power bill has remained essentially unchanged since the installation of the heat pumps, but with the benefit of super comfy temps in the summer.
     
  19. Gardiner

    Gardiner
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    I'm not sure what you mean by " My heat pump supports my electric baseboard "? and if your power bill hasn't changed any then you must not be using it too often.
     
  20. clicker666

    Older lifter

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    I have my baseboards set to 20C and the pumps to 21. If it's very cold and the heat pumps are struggling the baseboards kick in.

    I use them most of the year. They provide most of the heat and any cooling when it's above 24-25 ish. As I mentioned - I use them for cooling in the summer, which I didn't have before the pumps, so they do save considerable amounts of power. (especially when you utilize time of day).
     
  21. Dewie

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    Ah, you have it setup to work in conjunction with your electric baseboards; not that the heatpump controls the baseboards (I too wondered how the heatpump was controlling the baseboards initially)

    In all honesty you should likely have a bit more of a temperature variance between the heatpump and the baseboards if you're looking to recover more energy costs. If you want it comfy as hell then carry on :)
     
  22. 17

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    teenage dirtbag

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    My baseboards are at like 15 and my heat pump is set at 21 and the ambient temps are always 22- 22.5 ish
     
  23. clicker666

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    My wife finds it too cold as it is, but those puppies aren't going above 22. That's where I catch fire.
     
  24. Gardiner

    Gardiner
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    Why can't your puppy go above 22?.....we set ours on 23 most of the day and shut it off (turn up the convectair heater) during TV sitting hours and turn it back on at night at 22.
    Happy wife Happy life!
     
  25. clicker666

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    23!!!!

    You must be a Rockefeller. In all honesty, I can't stand the heat being above 21. I tend to run hot in the winter, and 19 would be an actual comfortable temp for me in the house. My wife, on the other hand, would do well at your house and feels cold at 21 or less. I'm running around in shorts and a muscle shirt and she's got flannel and socks on.
     
  26. hank

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    I would legit die if I had to live in a 23 deg house haha
     
  27. Mitch

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    23 Jesus are you trying to cut weight for a fight?
     
  28. Gardiner

    Gardiner
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    wait till menopause....lol
     
  29. 17

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    teenage dirtbag

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    when i lived on washmill and my heat was incl, i had it set to 24 :o

    shorts and t shirt erryday
     
  30. Duggan

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    I came into our south facing condo, that has massive windows and the knob that stayed from air B&B had it at 25 and the ambient was 29. Even at night 25 is ridiculous.
     
  31. Matt30

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    Y'all crazy....my house stays at 66F (about 19C) most of the time unless I decide to light the woodstove. I can't stand bein overly warm but it is nice comin out of the cold in the dead of winter to a rip roarin fire
     

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