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Hey gang, Since you guys are the smartest people I know, I thought I'd throw this question out here: My AC unit has expired, and my propane heat system is costing way too much to operate, since propane has nearly doubled in price in the last 24 months. So... it's time to think heat pump, I suppose. My options are a normal air-coupled heat pump, or a geothermal system. The heat pump would just be your standard type system, with either propane or electric resistance heat as a backup. I don't know much more than that... I don't have a price or the SEER rating yet. The geo system would be a horizontal closed loop system. About 400' of ground loop buried 5-6' deep. They recommend a backup heat system for this as well, which could be either propane or electric resistance. The geo system also includes a new water heater - apparently the geo system will take care of about 80% of the hot water generation we require. SEER rating is 21 and the installed price is about $20k... yikes. I've seen data that says the ground loop is good for 50+ years, and the indoor equipment has a 22 year life span. BTW, it's a 3 ton unit and we live in Southern Indiana... so it's about 90*/90% humidity in summer and can be in the teens in the winter. Does anyone have any thoughts or experience with geothermal vs. other types of HVAC? Thanks! chuck wills |
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