Tapping into the hot water supply


Postby silky_jack » Tue Nov 27, 2007 12:33 pm

Hi,

I am putting a new toilet in the upstair front bedroom. I can run a cold water feed no problem from the tank in the loft. The only hotwater taps in the house are downstairs currently.

Is there anyway I can tap into the hot water tank in the back bedroom and run a pipe back into the loft and then down into the front bedroom? Would this work as I really want to avoid taking up floorboards etc.?

Many thanks.
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Postby bobplum » Tue Nov 27, 2007 10:44 pm

why would you want to run a hot supply to a toilet?
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Postby silky_jack » Wed Nov 28, 2007 9:15 am

For the sink!
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Postby marrtin » Wed Nov 28, 2007 9:32 am

Does the header tank sit directly on the joists in the loft or is it on a stand off the deck?
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Postby peter the plumber » Wed Nov 28, 2007 5:30 pm

I think you’re on a loser here.

If you run a hot water pipe up and thru your loft space and then down again, I am sure will not have any water pressure.

There gravity feed and I am sure running the water pipe up is a bad idea.

You need to run the pipes under the floors, there no other way.

It doesn’t take long about 2 hours depending on the pipe run.
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Postby bobplum » Wed Nov 28, 2007 11:01 pm

from your with peter email it appered it was just a toilet being fitted
i agree under the floor boards would be your best bet
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Postby silky_jack » Fri Nov 30, 2007 4:25 pm

Thanks you to you all for your replies....so under the floorboards it is then. My header tank sits directly onto the joists..is this a problem?

In terms of the hot water, I guess under the floor it is....what do you do when you need to lay paies against the run on the joists? Is it ok to cut a notch?
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Postby peter the plumber » Fri Nov 30, 2007 11:01 pm

I did have a fact sheet on noching out for my trainee, but I can find it, its here somewhere.

But I would say you could buy clips with metal top on them that are designed for this purposes.

Basics are simple, try and keep the pipe run in the middle of the joisted.

Only go has deep has you have to.

Remember you need to put in some pipe insulation and clips where they touch the joists.

If you don’t you will have knocking pipes.

If you are lucky the joisted will run the right way and you can just clip the pipe a long them.

I always lay a 3-meter pipe down first and mark it out that way. It gives you a nice straight line and gives you the right width.
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Postby marrtin » Fri Nov 30, 2007 11:43 pm

Tank on the joists is fine if you run the pipe under the floorboards. It just makes it less likely to work if you ran the pipe in the loft.
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