Okay, I guess that I nor my husband are one of the smartest cookies in the box when it comes to heating and cooling. We were concerned as to why our heat pump was not kicking on in the winter with our furnice with propane heat. We called Accurate, they came and looked at our heat pump and stated that it wasn't woking because it was an air conditioner. We felt pretty stupid. They told us that they would just charge us for fuel but we got a bill for $65.00 for a service call. I would recommend them but make sure you know what you are calling for to save yourself some money.