3 ms·

If your heatpump takes six hours to warm up your home, the system is wrongly designed.

• londons_explore 3y ago
  gas systems normally are very powerful because gas is cheap and houses weren't well insulated. The boiler therefore had to be very powerful to overcome losses of the coldest nights, but the rest of the time could heat the building fast. Heat pumps are far more expensive per btu, both to buy and to run, so it makes more financial sense to insulate the house well and have a heat pump just big enough for the coldest nights losses. But that means that any other time, heating up the thermal mass of the house can take days. This is only a problem for those who want their house to change temperature.
  • adrianN 3y ago
    In my experience neither of your points is true of a modern heat pump nor a modern gas system. All heating systems are generally optimized to bring homes from 16°C to 22°C in about two to three hours. If your heat pump can't do that it's too small (or your radiators are too small). If your gas system can do it in an hour it runs way too hot and you're wasting a lot of gas.