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22-10-09, 09:25 PM | #21 | |
Noisy Git
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Re: Underfloor heating, any plumbers?
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Then again, it's not going to warp or burn if full of water.
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22-10-09, 09:28 PM | #22 | |
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Re: Underfloor heating, any plumbers?
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Oh and i've just realised you've got a combi, you'd have to run seperate HW supplys to the sinks/basins to get it to work so knock that idea on the head. It's do able though and a good use of the heat, but alot of messing about. D'oh
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22-10-09, 09:36 PM | #23 | |
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Re: Underfloor heating, any plumbers?
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If not, BOOM ! Re price of coal: Has Missyc jibbed at going down the pit again?
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22-10-09, 09:39 PM | #24 | |
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Re: Underfloor heating, any plumbers?
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Alot of the newer solid fuel boilers have thermostats controling the airflow to the fire therefore controling the fire bed preventing it getting too hot and burning too much fuel. Thats the only problem I can see with yours is its control. If you don't put enough rads on taking heat away from the boiler the system could just end up like one big kettle no good to anyone and a potential danger.
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22-10-09, 09:44 PM | #25 |
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Re: Underfloor heating, any plumbers?
I would fit a blow-off valve as matter of course anyway if we do use it. The slight problem being I don't know this boiler has been pressure tested so don't know what to set a blowoff valve at!
Pressure buildup on the open system idea wouldn't be too much of an issue as any steam could bubble out of the expansion tank.
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22-10-09, 09:48 PM | #26 | |
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Re: Underfloor heating, any plumbers?
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just don't use a plastic tank, lol. |
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22-10-09, 09:59 PM | #27 |
Noisy Git
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Re: Underfloor heating, any plumbers?
You don't see many of those in the scrapyard
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22-10-09, 10:03 PM | #28 | |
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Re: Underfloor heating, any plumbers?
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Open has been fine for a long time for this sort of thing If you going to refit the tank just make sure that you have the outlet at the top and the inlet at the bottom. That way the hot water will convect away to be replaced by the cold. You need a rad big enough to be a heat sink but if the tanks is 2kw then choosing a rad size is not hard from the manufacturers specs. if the rad is below the tank you need a pump to drag the hot down into it. I bet you will have spent not far off the cost of a new stove by the time you're finished though.................. |
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22-10-09, 10:07 PM | #29 |
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Re: Underfloor heating, any plumbers?
There was never the intention to pressurise it
There's no way to fit the boiler so convection will circulate water, it fits horizontally over the top of the fire so inlet and outflow are level. If we were to put flexible tubing under the wooden floor, how much heat does that type of tubing dissipate per length?
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22-10-09, 10:38 PM | #30 | ||
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Re: Underfloor heating, any plumbers?
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Hepworth, speedfit (john guest). |
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