Last week I asked my first question about how to improve my building envelope and reduce mech system costs. using coolcalc.com, I simulated a number of manual J scenarios, I think I have the envelope options down to 1-3 things and will await results from my energy consultant.
The question now remains as to how to best heat & cool my home. On that post, many people suggested Chilltrix, but one poster suggested Implementation risk. They didn’t really explain what they meant by that.
With that said, when I try to estimate how much I would save by putting in a heat pump system like Chilltrix in compared to my HVAC guy’s current suggestion of a 96.5 multi stage forced air furance and a 17 SEER multi stage condenser….. the numbers don’t really suggest much savings, particularly because I am in zone 5 and could potentially need back up heat during cold days.
perhaps it’s a cost of energy thing – delivered cost of gas is $7.75-$8.00/MCF the past few months, and the cost of electricity is $.23/kWh.
What am I missing here? Why was everyone so focused on the mechanics of my house over insulation?
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