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Re: Solar water heating system value - Page 44

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Posted by daestrom on March 13, 2006, 10:13 pm

Considering 50' of 1/2" nominal piping contains less than a gallon of water,
and US machines use many gallons, the cold, stagnant water has little
overall affect on the filled temperature.


Posted by Solar Flare on March 14, 2006, 2:46 am
You would have to live in a 500 sq ft house to have less than 50' of
copper plumbing.

Point made though.

of water,

Posted by wmbjk on March 14, 2006, 2:22 pm
 On Mon, 13 Mar 2006 21:46:45 -0500, "Solar Flare"

And yet my home is 2000 sq.ft., and there's about 15' of pipe between
the washer and the water heater. You must have been thinking of 500
sq.ft. homes in your own neighborhood, eg 10 X 50', with the washer
near the rear bumper and the hot water tank near the hitch.


Posted by daestrom on March 14, 2006, 10:06 pm

Not between the laundry and the hw heater.  Or do you run your piping in a
huge loop all the way around the house to every fixture in turn? LOL [sic].

Even with the laundry on the second floor and HW heater in the basement, it
would have to be a pretty large house to need 50' of piping between them.


Posted by Solar Flare on March 15, 2006, 12:13 am
 LOL. You forget about the spur runs to other water appliances that are
usually split off and contribute to the thermal drain. The other item
is the plumbing always goes in 90 degree angles if done by a

Cripes! My laundry tub and HW heater are more than 50' (well, maybe
40') apart the way the crow flies, let alone all the take offs in
between. I can fill my machine quarter full of cold before the hot
hits the tub. My ensuite bathroom is even worse as it is over top the
laundry room and has another 20' of pipe to go.

piping in a

basement, it

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