4 ms·

ya electric baseboard are expensive to tun heatpumps are really cheap to run

qwytw 3y ago
> heatpumps are really cheap to run But still more expensive than gas in most areas? Unless you get a ground pump etc. which has a much higher upfront cost.
- Aachen 3y ago
  As a nonamerican, I'm not sure how to read "most places" here. Do you mean most places in the USA or actually most places in the world?
- hijinks 3y ago
  i would say if you have a gas HVAC there is little point in replacing unless you also have a lot of solar on the roof and sending a lot back to the grid. If I was building a new home today and in an area that might get down to 10-15F as a low i'd 100% do heat pumps. The nice part about heat pumps for me is that they might get to temp and run at 10% all day long and keep the heat right at 71. Where a gas will turn on at 69 and heat till 73 and continue that cold/hot cycle being cheaper also depends on current utility rates also
- throw0101b 3y ago
  > But still more expensive than gas in most areas? Using numbers from the non-profit Efficiency Maine, with natural/methane gas at $2.561 per CCF (therm), and electricity at $0.1595 per kWh, standard efficiency heat pumps have better $/MMBtu down to about 0F/-18C, and high performance HPs down to about -10F/-25C, per this presentation: * https://www.youtube.com/watch?v=OcwIz6heDss&t=39m30s https://www.youtube.com/watch?v=OcwIz6heDss&t=39m30s You'll have to do the math with your local prices. The same channel also has a presentation on dual fuel / hybrid setups: * https://www.youtube.com/watch?v=T_9P3Dn7is0 https://www.youtube.com/watch?v=T_9P3Dn7is0 Generally: if you're buying new HVAC+D equipment for your home, you might as well buy a heat pump instead of a 'simple' AC unit, and there are heat pumps that can work down below freezing quite well (which is probably good enough for most of the US population, except in the coldest locations).
  - ZeroGravitas 3y ago
    And if you're building a new subdivision or apartment block, you can skip the entire gas system connection. Safer and cheaper. Places off the current gas grid are also low hanging fruit generally.

> heatpumps are really cheap to run But still more expensive than gas in most areas? Unless you get a ground pump etc. which has a much higher upfront cost.

Aachen 3y ago
As a nonamerican, I'm not sure how to read "most places" here. Do you mean most places in the USA or actually most places in the world?
hijinks 3y ago
i would say if you have a gas HVAC there is little point in replacing unless you also have a lot of solar on the roof and sending a lot back to the grid. If I was building a new home today and in an area that might get down to 10-15F as a low i'd 100% do heat pumps. The nice part about heat pumps for me is that they might get to temp and run at 10% all day long and keep the heat right at 71. Where a gas will turn on at 69 and heat till 73 and continue that cold/hot cycle being cheaper also depends on current utility rates also
throw0101b 3y ago
> But still more expensive than gas in most areas? Using numbers from the non-profit Efficiency Maine, with natural/methane gas at $2.561 per CCF (therm), and electricity at $0.1595 per kWh, standard efficiency heat pumps have better $/MMBtu down to about 0F/-18C, and high performance HPs down to about -10F/-25C, per this presentation: * https://www.youtube.com/watch?v=OcwIz6heDss&t=39m30s https://www.youtube.com/watch?v=OcwIz6heDss&t=39m30s You'll have to do the math with your local prices. The same channel also has a presentation on dual fuel / hybrid setups: * https://www.youtube.com/watch?v=T_9P3Dn7is0 https://www.youtube.com/watch?v=T_9P3Dn7is0 Generally: if you're buying new HVAC+D equipment for your home, you might as well buy a heat pump instead of a 'simple' AC unit, and there are heat pumps that can work down below freezing quite well (which is probably good enough for most of the US population, except in the coldest locations).
- ZeroGravitas 3y ago
  And if you're building a new subdivision or apartment block, you can skip the entire gas system connection. Safer and cheaper. Places off the current gas grid are also low hanging fruit generally.