Viessmann vs IBC vs NTI Boilers

[Wentworth06]

This is pretty interesting , what would you think your annual heating costs will be with the new system if you don’t mind me asking.

[MeredithMan]

Originally Posted by Wentworth06

This is pretty interesting , what would you think your annual heating costs will be with the new system if you don’t mind me asking.

Good question. I don't know, is the honest answer, at this point. The new Viessmann is allegedly a lot more efficient than the previous unit, so I'm hoping that translates into less propane being used. The other piece to the puzzle is that our primary source of heating and cooling is geothermal, so the boiler replacement may be a moot point from an energy consumption & cost point of view.

[DickR]

Originally Posted by MeredithMan

....The other piece to the puzzle is that our primary source of heating and cooling is geothermal, so the boiler replacement may be a moot point from an energy consumption & cost point of view.

Ummm, with the geothermal heating system, why do you need/want a costly propane-fired system?

[MeredithMan]

Originally Posted by DickR

Ummm, with the geothermal heating system, why do you need/want a costly propane-fired system?

The previous owner, who built the house, was/is an HVAC/Plumbing contractor. It was built with the geothermal as the primary heat source, but with propane system as a back-up and/or supplemental system. In the winter, we set the thermostat for the back-up heat system pretty low...in the 50's. This saved our bacon several years ago when the geothermal pump failed while we weren't at the house for a few weeks.