Re: Solution? (Heating Crawlspace - Pipes Freezing)
- From: "PipeDown" <nowhere@xxxxxxxxxxxxx>
- Date: Wed, 23 Nov 2005 00:37:15 GMT
"Dave Miller" <david3@xxxxxxx> wrote in message
news:V8WdnfUX3Nw3xB7eRVn-hg@xxxxxxxxxx
>I also have a problem with pipes freezing in a crawlspace. I own a duplex
> that I live on the second and third floor of and rent out the first floor
> apartment. Most of the house has a warm basement (oil heater) beneath it
> but
> the kitchen for the first floor apartment was an addition with only a
> crawlspace below. As long as I have a tenant, the pipes don't freeze. Not
> because I turn the heat off (I don't) but because (I think) the water is
> run
> a few times a day to keep things thawed. My first thought is to get some
> warm air from the basement into the crawlspace but it's an old house with
> stone basement walls with brick above that. To get a big enough opening
> for
> the air exchange wouldn't be easy. Then I thought why couldn't I run a
> loop
> from the hot water system that feeds the cast iron radiators that heat my
> home? I could put the loop in the same joist cavity that the fresh water
> supply lines run in. My first concern is where to put a bleeder valve but
> other than that I think it would throw off enough heat to keep things
> above
> freezing down there. The added bonus is that it's not wasted heat because
> as
> the heat rises, it would heat the kitchen floor.
>
> Any thoughts? Do you think it would work or can you improve on it? I
> thought
> I would use cast pipe (galvanized or black? I don't know) because I
> thought
> it would continue to hold and radiate heat better than copper when the
> circulator is not on.
>
> Thanks for any help.
>
> Dave
>
>
How about a passive hot water recirculating valve. These usually attach
under a bathroom sink(furthest from tank) from hot to cold when the hot
valve cools to a setpoint, the recirc valve opens up and allows hot to flow
into the cold line. Here is one of several products
http://www.hotwaterlobster.com/ and it requires no electricity and no pump
(gravity/convection)
.
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- From: Dave Miller
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