dzzz,
if you decide to spend this kind of money ,check out the amp/ voltage requirements .Ihave had several in my otr tractors, latest being a new 09 freightliner with newest insulation that freightliner has , with the insulated curtians around windshield, in miami it is doable , close the bunk curtian and it will freeze you,if you notice in the ad it says APU- PROPERLY SIZED (auxiliary power unit)on board generator, my carrier unit 2 cylinder deisel , more than did the job but you could really tell when cycling under a load in high temp and high humidity, but it sure was nice pulling in to tomato patch plug in electric fry pan fry up some chicken ,rice in the microwave, hot coffee....sorry got off track:coffeedrink: plus these units (I have had 4 Carrier and one Tripac(thermoking) are noisy, but you get used to it.