I'm using the Carrier heat pump, electrical furnace with Infinity control system. This combo is much better than my old oil heating system. But the installation is very expensive.0 ^6 Y2 a: V4 l3 _. B+ F
, V6 n$ C+ K# A' DIn theory, the heat pump can produce heating when the temperature is above -12 degrees. Actually, Its efficiency is very low as long as the temperature is below around -5 degrees. I let the control system to switch between the furnace and heat pump. It does a good job. 5 H+ p/ u5 o- @/ N2 L2 G3 z ! W* ]& n F& d7 MDon't choose Sears if you want to buy Carrier. The best way is going to Carrier official website to get the all the authorized dealer around your area, get the quotation one by one.# V) ^) U+ U0 I. m
Post by lilyy;2439469 & S* [. v L {8 u
如果HEATPUMP -5就工作不好的话,是不是没有什么必要加了?8 d( ]/ b1 V7 D H. f* X
只加中央空调是不是比HEAT PUMP就制冷方面要好呢? E5 v5 X- Z# \$ |还是说建议一步到位HEAT PUMP,而不要中央空调呢?:confused: