"Stretch" wrote in message
oups.com...
Cowboy,

While there is a VERY SLIGHT energy savings from shading the outdoor
unit, the cost of building the hut over the onit will exceed the energy
savings over a long time. The payback is likely to exceed 10 years,
depending on construction costs and local energy rates. Look at how
much heat is rejected to the air vs how much solar gain you get. The
solar gain is a very small percentage of the heat rejected. Just
figure the heat input from the sun is about the same as the solar gain
for a like sized single pane window. Also consider that any shelter
you erect is going to restict air flow some or cause air recirculation.
Either will reduce efficiency of the system, possibly more than the
savings from reduced solar gain. Cowboy, you are just spitting in the
wind. Are you possibly related to Nick at Villanova? You sound a lot
like him!

Stretch



We won't see too much more of him. He's running with his tail between his
legs...