I live in Seattle where AC is only needed for a handful of days each year. A friend has a 20 year old gas furnace needing replacement, and he would like to update his system, including adding AC. A local company bid a system that includes a 5 ton Bosch (generation 2) variable speed heat pump, a new 80% single-stage gas furnace and an A coil. Am I right to be concerned that while the heat pump is variable speed, the furnace has a single speed blower? My primary concern is that such an approach may result in humidity problems. That said, given that humidity is really only a concern when running the AC (I think), and given the low number of days that AC is needed here, should we be concerned about this approach? - Thanks in advance! - Jim
I should add that he is being quoted a total cost of $15000. He also got a bid for a matched system, by which I mean a variable speed compressor paired with a ducted variable speed indoor air handler, but the costs for the latter system is over $20000 and a bit out of his budget comfort zone.