Thanks for the input. I called the air company that installed the new unit and they insist that 95-105 is a good temp at the register, but I think it should at least be a little bit hotter it being a 15kw - 53,000 btu furnace.

I recently purchased a 1998 Buccaneer 16x80 that has been completely gutted and redone with new appliances and new central heat and A/C but when the temp drops at night the max temp in the house gets to 68 degrees when the digital thermostat is set on 72 and the furnace runs all night wide open keep...