I have one in my home and it is Awesome,NO outdoor unit and with an all elctric home it was the way to go. We install alot,but the LOOP cost is 1800 per ton. The equipment is close to a 2 stage variable speed furnace. We think the loop as your fuel and that you are buying it upfront at a fixed price. You still need a fan and compressor no matter what you put in.We have installed a few just for the fact of many outdoor units and where to hide them.