3 ms·

If heat pumps get inefficient at low temps could we not program them to run full blast during the warmest parts of the day and preheat the home. Thus needing to

• smeej 3y ago
  Maybe, but unless your house is very well insulated, this would probably require making the home so warm as to be very uncomfortable. I live in New England in a small house (<700 sqft), and it easily drops 5 degrees an hour when it's 65 inside and 15 outside.
• delfinom 3y ago
  Pretty much the majority of north east homes are not that well insulated. Then you get to bigger buildings where by health and building code you must always have a certain % of fresh air intake otherwise you'll end up choking on your own carbon dioxide lol.
• evandev 3y ago
  With an air to water heat pump, you typically add a buffer tank that among other things helps keep preheated water warm. It is basically a hot water tank so doesn't last through the night However for other hydronic applications such as solar water heaters there is typically a thermal storage tank which can help store heat like a battery. Keep in mind a few things. One is some heat pumps are now operating down around -22*F. Second is geothermal is a water to water heat pump that isn't affected as much by the limitations of air temperature (but has other limitations). Third is radiant heat flooring with tubes in concrete acts as a thermal storage tank. Finally heat pumps for heating work best at low temperature hydronic water and can also be used for other applications such as DHW (domestic hot water) which needs to be at slightly higher temperatures than a buffer tank has.