Bikewanderer
Gold Member
- Joined
- Mar 2, 2010
- Messages
- 263
Wow.....lots going on here.
$9100 is three times what I normally spend to replace a 2.5-3 ton unit on rental houses. I stick to low seer rating single stage units with no heat pump.
That said, stay away with the variable speed. The difference is all about comfort, and the real cost is in maintenance and reliability. Two stage units are a single stage compressor with discharge valve halfway through the pumping section. It only adds the complexity of an additional valve. Were it me if I were going to look past the two stage unit I'd be looking at VRF systems or a geothermal heat pump. Not a lot of benefit in the variable speed stuff by itself.
$9100 is three times what I normally spend to replace a 2.5-3 ton unit on rental houses. I stick to low seer rating single stage units with no heat pump.
That said, stay away with the variable speed. The difference is all about comfort, and the real cost is in maintenance and reliability. Two stage units are a single stage compressor with discharge valve halfway through the pumping section. It only adds the complexity of an additional valve. Were it me if I were going to look past the two stage unit I'd be looking at VRF systems or a geothermal heat pump. Not a lot of benefit in the variable speed stuff by itself.