Hello! I’m not very savvy when it comes to geothermal. We recently purchased a home that was built 1979. Home is located in Iowa and is all electric. We have two separate living quarters, one is main living and the other is a large open pool room. Both areas are well insulated. There are two separate furnaces. We currently have a heat pump, but this winter have used a lot of axilliary heat due to extreme cold. Our highest electric bill this winter was $1000 and the average is $775. Our square footage is around 4800. We received a quote from a company for a Bosch geothermal 10 ton system. We received a quote for $66,670!!! From what I’m reading 10 ton seems very impressive...maybe too impressive and $66,670 seems extreme. We are in the process of receiving another bid and were concerned when wew were told they though they could put in a 6 ton system. That’s quite a difference. Is that usual to put a 10 ton system in a home with 4800 square feet? I have read through some of these forum questions and realize there is a lot more that goes into it but just hoping maybe someone can tell me if it’s completely crazy or maybe legit. Thank in advance!