hey i will be installing a shaver owb next week. I had a few questions what temp will i be seeing at the vents? I installed a 139,000 btu exchanger in my duct work above my evaporator.I installed drains and valves for draining in the summer the second question is what is the power savings? i use about 1600 kw a month in the winter i will be heating my hot water thanks mike myhouse is 1900 square feet