We've decided to have an Infinity Hybrid System installed as part of our home renovation in Portland, Oregon. We're going with the Infinity 25HNA6 16 SEER heat pump + electrostatic air cleaning system + 3 zones. We're evaluating whether to go with the Infinity ICS or the Infinity 96 as our natural gas-fired furnance.
Based on the input from our HVAC contractor, he says that 40 degrees is the set point he uses typically for Infinity Hybrid Systems in our area. Assuming a 40 degree set point, my question is whether or not we'll get the added benefit of the 3-stage burner in the ICS or whether the 2-stage burner in the Infinity 96 will be just fine.
Assuming that the furnance will kick in at 40 degrees, then I would assume that it would need to run at least at the medium stage of the ICS burner and the lower (or perhaps upper, I'm not sure) stage of the Infinity 96. If my assumption is correct (and it may not be), then it would seem that when using the ICS in a Hybrid System, you don't realize the benefit of its lower stage of its 3-stage burner, as when it kicks in, presumably it will not be using the lowest stage.
IdealComfort™ technology: The ICS has Carrier's new "IdealComfort" technology, whereas apparently the 96 does not. What are the advantages, if any, of the "IdealComfort" technology when used as part of my hybrid system?
Oops, forgot another question: Carrier describes the Infinity ICS as the "Quietest furnace you can buy." So, why is the ICS more quiet than the 96? How much more quiet?
I will greatly appreciate your input on this question (ICS vs. 96) and any other thoughts/comments on the system we're hoping to have installed.
Thank you very much for your expert input.