My girl friend will not run here heat due to it being only a 60%afue boiler. Extreamly high energy bills! She uses Nat. gas fired space heaters in only two rooms. It's a really old duplex house. No insulation and original windows. The place is about 100 yrs old.
I'm getting her a new boiler most likely a Burnham condensing boiler 94%afue. A big Christmas present! I'm tired of freezing in her house, and worried about the pipes freezing also.
My question is since the boiler has reset controls and modulates, Would she save even more on her energy bills using the boiler for indirect water heat, over using a stardard water heater?
I could shut down the call for hot water when the house is empty by using an electronic thermostat and an occupied relay, to deactivate the water heat loop on the boiler.
I haven't check the controls on this boiler yet, it may already have an option for this.
What do you guys think about this? Or any other advise. Maybe a better boiler?
I have only checked prices of a residential Lochivar and Utica boiles so far. unbelivable!