No Corvair <VV> (garage heat)

[James Davis]

Not so. The modern ones with a SEER of 18 will work to 25 below F without 
aux heat.  Ours only ran for 4 hours out of 24 when the temp was 14 to -8 
Christmas eve. The scroll pumps are also really efficient.  Best to use a 
geothermal unit if you need to heat where you have 10,000 degree days or 
more.
Jim Davis


At 10:14 PM 12/28/2004, Les wrote:
>Apparently though, you WILL need a source of auxiliary heat if you live 
>somewhere that it gets cold in the winter. There just ain't much heat for 
>a heat pump to extract when it gets to -30ish outside. My parents put in 
>the air-to-air split heat pump in their northern Ontario home. It makes a 
>fine air conditioner but for the coldest four months of winter the aux 
>heat (wood burning fireplace & electric furnace) takes all the load - you 
>can't even run an A/C compressor outdoors when it gets to these kind of 
>temperatures.
>
>Seems to me ground source rather than air source is the way to go for 
>northern climate.
>
>Les in sunny Winnipeg, Canada (warmed up to -10 today).