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Farm Building and Infrastructure
Renewable Energy
Will a GSHP work on generator?
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<blockquote data-quote="steveR" data-source="post: 7872024" data-attributes="member: 66976"><p>Just been chatting with Herself about the after effects of Arwen and the problems of out total reliance on electricity...</p><p></p><p>The property's hot water and heating comes from a GSHP, installed in 2011, and got the RHI approval a few years later which runs out (I think) next year. Both the houses I have built will run from a gennie, the first used LPG for heating. </p><p></p><p>However, this property has a 12kW heat pump output, and needs a good slug of juice for startup*, so the 4KW gennie is not up to running the heatpump, so in power cuts, I switch it off and run the house from the gennie, and heat with a mix of a small woodburner stove in one room, and a Superser gas heater. However, this means no hot water!</p><p></p><p>When the house refurb was being done, I discussed an LPG combi as backup with the heating engineers, but was advised that an RHI inspection would look unfavourably on one, unless is was fancy hidden system.... So I left it.</p><p></p><p>Now that the RHI is coming to an end, I am thinking again on what is the best way forward to safeguard our comfort etc</p><p></p><p>1. Gas combi install about £2K, for a simple manual changeover system, running off a 47kg bottle. House on a cheap existing gennie</p><p></p><p>2. A simple, £2K, 25KVA gennie. However these seem to require that the tractor PTO runs at a genuine 540 output, as running on economy mode leads to problems... <a href="http://www.omafra.gov.on.ca/english/engineer/facts/00-059.htm#choose" target="_blank">http://www.omafra.gov.on.ca/english/engineer/facts/00-059.htm#choose</a> So probably rather loud near the house</p><p></p><p>Or go and buy a similiar priced stand-alone powered generator, sized to start and then run the GSHP from it.</p><p></p><p>* But I cannot find out how much load!!</p></blockquote><p></p>
[QUOTE="steveR, post: 7872024, member: 66976"] Just been chatting with Herself about the after effects of Arwen and the problems of out total reliance on electricity... The property's hot water and heating comes from a GSHP, installed in 2011, and got the RHI approval a few years later which runs out (I think) next year. Both the houses I have built will run from a gennie, the first used LPG for heating. However, this property has a 12kW heat pump output, and needs a good slug of juice for startup*, so the 4KW gennie is not up to running the heatpump, so in power cuts, I switch it off and run the house from the gennie, and heat with a mix of a small woodburner stove in one room, and a Superser gas heater. However, this means no hot water! When the house refurb was being done, I discussed an LPG combi as backup with the heating engineers, but was advised that an RHI inspection would look unfavourably on one, unless is was fancy hidden system.... So I left it. Now that the RHI is coming to an end, I am thinking again on what is the best way forward to safeguard our comfort etc 1. Gas combi install about £2K, for a simple manual changeover system, running off a 47kg bottle. House on a cheap existing gennie 2. A simple, £2K, 25KVA gennie. However these seem to require that the tractor PTO runs at a genuine 540 output, as running on economy mode leads to problems... [URL]http://www.omafra.gov.on.ca/english/engineer/facts/00-059.htm#choose[/URL] So probably rather loud near the house Or go and buy a similiar priced stand-alone powered generator, sized to start and then run the GSHP from it. * But I cannot find out how much load!! [/QUOTE]
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