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Old 22 February 2013, 12:36   #31
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Well, it's been a while since Chris has had a Technical Challenge. Let the Games commence
Oi! behave yourself
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Old 23 February 2013, 03:58   #32
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Whilst I have the opportunity to get a cheeky couple of questions in...

Can a gas boiler serve both traditional radiators and underfloor heating or do the two type of heating have disparate temperature requirements?

Also, what are the chances of successfully physically moving a boiler? We have a perfectly good boiler, recently fully rebuilt courtesy of British Gas at one end of our house and looking to build an extension that would have a utility area which would be mid house. This utility area would be approx where our existing hot water tank is now which would be replaced by new HW tank sited in the new utility area. Wondering on the practicalities of looping the circuit at old boiler end and tapping into the circuit mid circuit.

Ultimately this utility area would be used to site some form of renewable energy source but i dont think we are quite there financially and technology wise but having an interim solution utilising the existing infrastructure combined with underfloor for the new rooms (bathroom, toiler, kitchen) would be good to achieve. The idea of moving the boiler to new location is it would allow us to achieve a dry loft.
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Old 23 February 2013, 06:17   #33
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Can a gas boiler serve both traditional radiators and underfloor heating or do the two type of heating have disparate temperature requirements?
Assuming it's a conventional gas boiler (i.e. not a combi) then yes it can serve both. The underfloor heating is a closed loop that is controlled by a thermal mixing valve, so it regulates its own temp. Our conventional oil boiler feeds traditional rads in the old part of the house & underfloor in the west wing
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Old 23 February 2013, 07:11   #34
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Thanks. It is a standard boiler but in the future I may purchase either a heat pump type unit or a gas system boiler ie seperate hot water tank like a conventional boiler but radiator pipes pressurised and sealed system to avoid the need for an external tank in loft. However if requirement of underfloor would prevents the use of a system boiler then it would not be the end of the world.

Trying to keep options open as with lighting I think that we are at a crossroads regarding traditional type thinking being pushed to the limit of what it was designed for and newer technologies that were designed specifically for energy efficiency in our climate. Currently there is still no mainstream replacement for gas/electric/oil boilers and in this country, alternatives seem to be an expensive curiosity that works well for some but not for others.
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Old 23 February 2013, 08:31   #35
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moving a non condensing boiler to a new extension is not likley to be allowed, check with your local building control. Part L of the building regs , the conservation of heat and power is what you want to get them to check under.
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Old 23 February 2013, 09:28   #36
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moving a non condensing boiler to a new extension is not likley to be allowed, check with your local building control. Part L of the building regs
Best not to tell 'em then
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Old 23 February 2013, 11:09   #37
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building control will not sign the job off unless it complies with the standards in force , so you have to play their game.
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Old 23 February 2013, 11:19   #38
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Been there done that. Get the ext'n signed off, then start on the real work when the busy bodies have buggered off back to their desks.
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Old 23 February 2013, 11:23   #39
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Old 23 February 2013, 18:03   #40
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Been there done that. Get the ext'n signed off, then start on the real work when the busy bodies have buggered off back to their desks.
Nice one
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