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Author Topic: New Build DHW+CH, Wood fired boiler with thermal store. Looking for advice!  (Read 718 times)
MWood_UK
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« Reply #15 on: June 14, 2017, 08:39:25 PM »

I must say i have never seen the 'integrated' pv panels until i just googled them! Though i had mentioned to someone a while back now that they would look a look better if you designed them to replace the roofing rather than fitted on top of the roof... Clearly i was beaten to another good idea! 
Must say the roof tile style ones look pretty neat! (although we have a slate roof lol)
Cables are definitely easier to retro fit than pipework as well!


The loading valve that came with the range is an ESBE LTC261 with built in pump...  I know this is going to be a stupid question, but the pump looks a little on the small side!
Do i still need a circulation pump on the boiler loop or does the one on the loading valve replace that?
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biff
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An unpaid Navitron volunteer who lives off-grid.


« Reply #16 on: June 14, 2017, 09:11:46 PM »

Nope !,
       You need to keep your PV panels cool , Raise them up and let the air get in behind them to keep them cool..
  If they heat up too much, You lose a good 10% to 15% of the power.
                                             Biff
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An unpaid Navitron volunteer,who has been living off-grid,powered by wind and solar,each year better than the last one.
todthedog
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« Reply #17 on: June 15, 2017, 06:51:41 AM »

Totally agree with Biff integrated is standard in France, due to the way payments are made. Built in power loss heard of several leaky roofs!
 The panels work better cool.
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dhaslam
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« Reply #18 on: June 15, 2017, 07:52:12 AM »

Only the loading valve pump is needed and it may run on a low setting because there will already be some natural circulation.
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DHW 250 litre cylinder  60 X 47mm tubes
Heating  180,000 litre straw insulated seasonal store, 90X58mm tubes + 7 sqm flat collectors, 1 kW VAWT, 3 kW heatpump plus Walltherm gasifying stove
MWood_UK
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« Reply #19 on: June 15, 2017, 09:03:02 AM »

Only the loading valve pump is needed and it may run on a low setting because there will already be some natural circulation.

Awsome, cheers dude.
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