Have independent heating zones with a standard boiler

boilercoolingheatinghvacthermostat

We have a new standard gas boiler in our home along with two thermostats, one for the basement and one for the rest of the house (living room, bedrooms, etc).

The problem we're having is that the basement has become the main thermostat and the upstairs thermostat doesn't even work. Whenever we raise the basement thermostat just a little, the upstairs gets extremely hot.

We wanted to know if we are able to have 2 separate heating zones with the same boiler so that the basement is able to have its own temperature while the upstairs can also be independent. We're not sure if we would need a different boiler to provide this kind of service or if it's possible to stay with the boiler we have to control the 2 separate zones in our home.

Best Answer

Yes, it can be done. It just needs to be plumbed (and wired) right. Each thermostat should control a valve that admits hot water to its section of the house.

The boiler should be wired to fire up whenever either thermostat is calling for heat.

For example, if the basement is cold, but the rest of the house is warm, then the valve allowing water to the basement should be opened, and the boiler turned on.