4 ms·

I think it's more efficient to heat/cool single room than all house when for e.g. you spend most of the day in office/living room and then go to bed. That way y

• driverdan 6y ago
  With a central chiller you can still have each room on a separate zone.
• bluGill 6y ago
  That depends on insulation. If your house is well insulated it doesn't make much difference as the cooling needed for when you are in the room (assuming you use all rooms every day) is most of the cooling needed for the entire day. Thus you may as well temperature control everything at once and call it good. The loss of energy is more than worth it considering the comfort. If you have poor insulation the above doesn't apply. In extreem climates there is another consideration:you need to keep the entire building warm enough to keep the pipes from freezing. Here you keep everything warm because if the heater fails in one room there is a risk you won't enter that room until it is too late and you have done major damage. By having one central unit it is much more likely someone will notice before there is a problem. Extreme climates also tend to have better insulation which makes the central system more convenient.
  • rietta 6y ago
    Or you have to keep it cooled to keep the relative humidity low enough that mold and mildew do not take over.