I'm thinking that will be the issue I have. in florida it's slab-on-grade and
my house is single story, which is part of the reason for the loop--a large
single story house is going to have at least one fixture a good long wait from
the heater.
what's 'significant', phil? I'm planning to run the loop in the attic, as far
above the heater tank as I can, and have 'drops' to the individual sinks, much
like a compressed air line setup. I figure the water in the drops will be cool,
but that's six or seven feet of pipe vs. 60 or 70 feet in some places.
I also figure I'll have to put the low (cold) part of the loop just a foot or
two below the hot part, or else figure out how to commandeer the existing
plumbing in the slab to be the return line. I'm going to try that first, but
since a lot of the fixtures will move that probalby won't work.
scott
----- Original Message -----
From: pethier@comcast.net
To: "scott hall" <scott.hall@comcast.net>
Cc: shop-talk@autox.team.net
Sent: Monday, April 6, 2009 10:46:20 PM GMT -05:00 US/Canada Eastern
Subject: Re: [Shop-talk] water heaters and hot water loops?
----- "scott hall" <scott.hall@comcast.net> wrote:
> now I just have to figure out if a passive loop system really works.
Passive loop systems really work, providing that the sink is significantly
higher than the water heater.
My pipe-fitter father put this system in the house he had built in 1963. I just
sold the house in November, and I could walk into the house after being gone
for a day or two and get hot water in any of the sinks right away. I think
about that sometimes while waiting for hot water in my own house.
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