We decided that in addition to addressing air leakage in the home, we'd also go for more comfort, and put out a bid for a heat pump system. Based on our 11.8c/kwh electric vs. the uncertainty of oil prices in the future, we decided to go all-electric. Our existing ductwork was properly sized for AC in the future, so it doesn't need to be completely replaced, but there are areas where the tape used is coming off (age), and that would be replaced with the iron-on tape.
They're going to remove the low-boy oil furnace and associated equipment and add a return from the basement up to the second floor to promote better air circulation.
Carrier 25HBC542A003 HP
Carrier FV4CNB005T00 air handler
Carrier 24KW heat strips
Total came to $x including concrete pad outside, all installation, and tax.
AHRI search returned this:
3646151 Active Systems BASE 15 PURON HP CARRIER AIR CONDITIONING 25HBC542A**30 FV4CN(B,F)005 42000 13.00 15.50 42000 8.70 25800