On 3/8/2011 12:21 PM, harry wrote:
On Mar 7, 5:14 pm, The Daring
wrote:
On 3/7/2011 10:41 AM, harry wrote:





On Mar 7, 3:34 pm, wrote:
The heat pump in basement idea is interesting, but would not work
unless you had some way to increase the surface area for heat transfer.
For example, if you had buried a network of pipes in the floor before
pouring the cement, you could circulate water through there, and then
have it go through a radiator. Behind the radiator you could have a
squirrel cage/centrifugal blower. Your only cost to maintain the air
temp in the basement would be for an efficient water pump and efficient
squirrel cage blower. This could make a heat pump very efficient.

Of course, if you have that setup, it would be much better to simply
use a heat pump designed to directly work with the water or whatever
fluid is in the pipes. That would be a geothermal system.

There's nothing wrong with a heatpump in the basement. But the
evaporator needs to be outside.

Errrrrrrrr! The condensing unit which technically turns into an
evaporator when the reversing valve is activated is still called
the condenser because it's the outdoor component. If you walked
into a supply house and asked for an evaporator, you'll get the
indoor coil.

TDD- Hide quoted text -

- Show quoted text -

There's three components. The pump/ compressor and two heat
exchangers.
The pump can be in the basement. One heat exchanger indoors and one
outdors.
Putting a heat exchanger in the basement is stupid.

Not stupid if it's mounted on top of the air handler and connected to
the duct work. :-)

TDD