i got two estimates for a heat pump. the square footage of the house is about 2100 square feet. the location is rochester, NY. before someone jumps all over me as far as having a heat pump in the northeast, keep in mind that we are on a municipal electric with the rate about 3.5-4.0 cents/KWH. in fact, my highest electric bill (air handler has electric coils for when needed) has been about $220.
anyway, one contractor said the house size was borderline for 2.5 ton or 3 ton. the current unit is a 2.5 ton.
what i'm confused about is the other contractors sizing. he sized the heat pump at 2.5 tons but the air handler evaporator coils is 3 ton. is there a reason why he may have done this? i will be getting a variable speed blower if that matters.
thanks!