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Author Topic: New Holiday Let with renewables  (Read 378 times)
benseb
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« on: February 15, 2020, 08:54:08 AM »

We’re having a 60sqm holiday let built, after knocking down a horrible old garage
 
It will include triple glazed aluminium windows. Under floor heating (with minimal screed to allow faster warm up due to sporadic occupation), 8kw Ecodan (mainly for DHW) and a 9kWp in roof solar array.
 
The holiday let will be linked to the main house via 3ph supply so we can utilise the PV excess on our main house (260sqm barn conversion, circa 1800s with ASHP)
 
progress pics so far...


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TT
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« Reply #1 on: February 15, 2020, 09:51:02 AM »

Hope it’s a success!
And you get some tech to play with too!!
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russ_fae_fyvie
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All finished !


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« Reply #2 on: February 16, 2020, 12:33:41 PM »

Maybe its just me but the Ecodan seems pretty big for the floor area?

We moved into our new house in August which has a 5kW Ecodan for the UFH and DHW for 110m2 floor area and so far its been fine.

www.stationbrae.uk



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All finished so the new adventure now starts here !
marshman
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« Reply #3 on: February 16, 2020, 01:23:48 PM »

Maybe its just me but the Ecodan seems pretty big for the floor area?

We moved into our new house in August which has a 5kW Ecodan for the UFH and DHW for 110m2 floor area and so far its been fine.

www.stationbrae.uk



I think I agree with you. My place is 240 sqm and has a 10kW GSHP which to be honest is oversized. Even assuming mine isn't oversized, a "new build" 60 sqm property should need less than a third of that, so 3kW ish.   It does say "mainly for DHW", so one advantage will be fairly rapid water heating!

Roger
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3.15kWpk (15xSharp ND210)/SB3000. & 3.675kWpk (15 x Suntech 245WD)/SB4000TL, 10kW GSHP driving Wirsbo underfloor heating from 1200m ground loops. 10' x 7' solar wall (experimental). Clearview 650 Wood Burning Stove. MHRV - diy retrofit. Triple glazing.
benseb
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« Reply #4 on: February 16, 2020, 01:34:19 PM »

Yes we discussed a 5kw which should be plenty, but with it being a holiday let that sleeps 4 (+2) we oversizes to allow the water to heat up a bit quicker as the living styles of people renting for a weekend doesn’t really adapt for ASHP like we would. They will still expect piping hot water on demand, with instant reheat, just like we’re on mains gas!

We’re putting in a 250l tank. Who knows, the Ecodan may be still too big but I’d hate for people to be complaining that they couldn’t all have a bath or something silly.
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