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bethw_gw

Estimate comparison and pro help: Geo vs. air-source heat pump

bethw
14 years ago

Here are the basics: We live in Virginia in an 1843 farmhouse.The house is a clapboard with 2 1/2 stories with a finished English basement (brick foundation). 2600 square feet. It's obviously not very tight, but the exterior walls are insulated (don't know the R value) and we have 18 inches of blown insulation in the attic. Windows are original but have been restored, tightly weatherstripped, and we have good storm windows. Everything that can be sealed has been. We're replacing a 60 year-old oil furnace. The only heating options are propane, oil, or heat pump. Planning on being here a long time, but who knows? Rates from this past winter were as follows: LP $3.19/gal, oil $3.42/gal, electric 6.22¢. We had a load calc done that indicated 29.842 BTUH heat gain but 62,022 BTUH heat loss.

Estimates are as follows:

Air-source heat pump:

Trane XL15i Super High Efficiency Heat Pump Condenser & Coil paired to a matching Trane XV95 95%+ Variable Speed Two Stage Gas Furnace & Complete Dual Fuel Kit. 15.75 SEER.

 2 stage gas valve when combined with Dual Fuel provides 3 stages of heat

 Utilizes new environmentally friendly, CFC free R410A refrigerant

 Backed by Trane 10 Year Parts AND LABOR Warranty

 Includes touch screen fully programmable thermostat

 AprilAire 2200 series media filter included

COST $9,388 for turnkey installation

Geothermal option #1:

3 ton Waterfurnace Versatec (3.6 COP, 16.2 EER), horizontal earth loop installed, R-22 refrigerant, one year complete warranty on unit, 55 year warranty on earth loop, 15KW electric backup

COST $12,694

Geothermal option #2:

3 ton Waterfurnace Premier (3.8 COP, 18.0 EER), horizontal earth loop installed, R-22 refrigerant, 5 year complete warranty on unit, 55 year warranty on earth loop, 2 year maintenance agreement, hot water assist, 15 KW electric backup

COST $16,040

What to do? I've thought this over so many times that my head is tired!

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