Quote:
Originally Posted by randen
Xringer Wrote:
Today, we will spent about $2 for oil, to heat our water.
I think this A7 ASHP will cut that down to about $1. (If it uses 6 kw hours per day
Just thought I would throw a wrench in. The solar hot water we have been collecting Via flat plate panel since about April is costing us about $2.16 per month for the little circ. pump operation. Anyone could build a panel with just basic skills and plumb it into an exsisting tank. Old patio door glass some 3/8 copper tube 3/4 copper tube aluminum flashing material a little sweat presto,, no more oil.
Randen
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Sounds pretty good, but I've had solar hot water before and know about the hardware problems that are possible.
Plus, I do recall periods of over-cast and rainy days when our hotwater tank dropped down under 75F.
Sometimes, solar isn't so great around here.. We are a bit below average.
Not so bad during the coldest part of the winter..
But, the main problem we have with solar, is the location of the panels.
They would have to be located about 100 feet down hill from the point-of-use.
(Wife will not allow any more panels on the roof)..
The panels would be located where my PV arrays are currently installed.
(I would have to get rid of the PV). The area has so much shade,
it's a horrible location for PV, but shouldn't be very bad for HW solar.
The area gets good sunlight 4 to 5 hours per day on average.
But, I do have an idea about using the warm air in my attic (which now at 117F).
I could pump hot air down from the attic during the winter to keep my basement warm (around the ASHP)..
I really like the whole idea of keeping the basement warmer..
Secondly, I am currently using 800w of PV connected to a HW heating element. (Extra low efficiency).
So, if I were use that 800w to power my ASHP for 4 or 5 daylight hours, that might save some money..