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Heating and cooling: Thermal store heat dump to another property....

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    ...I know... sounds daft but bear with me (...no there isn't actually a bear with me)...

    We are proposing for our new house, which is on a plot between our old house and our neighbours, an oversized Evac tube SHW system with woodburner winter back up and a DPS (or similar) thermal store and immersion main backup.

    The oversizing means that we make as much use of winter firings of the stove as possible and allows the tubes to help us well into the autumn. However if I had somewhere to dump excess heat, I could super oversize.

    Now the thing is, the old house is occupied my partners mum and gran and the old combi they have is on its last legs... so I had though there might be a way for them to have our summer excess solar possibly by replacing combi for a tank system or a combi that could handle preheated water, but preheat the water through a tank filled by our dump heat... or something....

    Properties are very close so no problem there, and in the event of a change in owner ship we'd just turn of the tap and dump to drain or screen the panels seasonally...

    ...any ideas.....?

    J

    (thanks in advance)

    PS passiv levels of insulation so we are only talking about DHW here.
    • CommentAuthorCWatters
    • CommentTimeJul 21st 2009
     
    Houses with shared heating systems have traditionally been hard to sell. I think I would design it so that both systems can operate totally independantly by simply dissconnecting one or perhaps two pipes between the two properties. You also need consider the fire regs (holes in walls between the two properties).

    Perhaps put a tank in next door designed for solar. eg with a seperate coil to. Rig up a diverter valve that steers excess heat to next door's tank once yours is upto temperature. Once both uptp temperature it diverts to a dump rad in your place. When they come to sell up you disconnect the pipe to their coil and the new owner can install their own panel if they want.
  3.  
    ...that was the general idea. Only thing is that I'm not sure how the dump works, whether its a sort of coil to coil thing or it just draws water straight from the store (to be topped up with cold)...

    ...also probably most pressing decision would be the spec for the boiler in the olds house. Solar ready combi (straight swap with existing - if we ever get round to the heat dump then the solar action goes on there) or a gravity fed system...

    J

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