First of all I'm not your typical homeowner. I have tools and equipment most homeowners will never have, nor do they need them. Comercial Backhoe ect Back in the mid 70's after our first gas/energy crisis a lot of forward think arose Alternative energy thinking, solar pannels and the wood stove golden age. I had a a passive cooling system. Simplistic but worked. I had 200' 6" dranage pipe left of from a dranage job I dug a trench 5' deep and installed the pipe. 5' deep level is usually below frost and also usually deep enough the sun does not effect the 55 degree ground temps in MA. With a simple blower, I removed the warmer air from my house pushed it threw the 200 feet pipe under ground and it returned in the mid 60's into my home. A few amps blower is much cheaper to run than a compressor . This system made two rooms confortable, the one I slept in and the familly room where most activities occured. It woked well for the first 7 years here till a swimming pool was installed. I had to did up the area the the cooling line resided and that ended it. My lot has a lot of ledge and it is not possible to to relocate the line or the pool. Another obsticle was I would have to remove about 200' of stone wall I just built 4/5' high. Loose my wife's herb garden my veg garden and re-landscape too much additional areas then deal with ledge. Could have been done but too much effort was required.