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ASHP - How to know the actual COP?
Thinking of installing an ASHP and have been following some of the threads on here. I may have missed this, but how does one actually calculate the real COP that is being achieved over a chosen time period? Obviously I can meter the electrical input, but how do I measure the actual heat output? Sorry if this is dumb....
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Off gas, ASHP or GSHP?
Hi Can anyone help? I'm building a new house in an area with no mains gas. This will be a house for my family and I to live in for the long term. Oil heating isn't really viable and I'm keen to use either GSHP or ASHP with solar hot water. The house will be timber framed with 90 mm Celotex (or could increase to 140 mm-…
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Cost of fitting GSHP
Can anyone advise me on the cost of fitting a GSHP system for a four bed farmhouse in Devon? It is also has a three bed holiday cottage along side it. Can I run that off the same system? And i assume it uses electricty as a back-up when it's not creating enough power? We're going to have a couple of wood burners too but…
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ASHP or GSHP or Solar panel
So winter has come to an end and to all those people who changed their heating to ASHP, or GSHP, and who also installed solar panels. How much lower were your gas and electricity bills compared to before you changed?
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Air to Air heat pump. ASHP for space heating only
I've read quite a few articles on ASHP around here but it seems a lot is being discussed about air to water, units installed in lofts, old stone houses and generally less than optimal scenarios. As far as I can understand, air to air systems with high-wall mounted indoor units are probably the most efficient option. I plan…
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Help with heating choice, LPG to ASHP??
Hi, I will soon be looking to extend my house, this will include moving/replacing an old floor standing boiler. We have no main gas supply in the village and currently use LPG @ 44ppl. I have read many stories about ASHP & GSHP but sometimes the cost reported to run them seems nearly as high as i'm paying now. House is…
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ASHP/GSHP in Winter?
Hi, Sorry if this has been asked before but how is everyone getting on with their Air Source / Ground Source Heat pumps now the weather has turned very cold? I am undertaking a business plan to become an installer of renewables and am doing some research and so would expect GS to be better in the cold. Regards Rob
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Ecodan 8.5kw ASHP wall mounting,vibration and induction interference
Is this possible to wall mount? There doesn't seem to be a purpose made fixing kit. I looked at the downloadable manual and it says when fixing to the ground } so I assume some sort of isolation from the wall is necessary to prevent the wall acting like a giant soundboard. Also manual recommends placement of the unit NOT…
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ASHPs on EBAY
Hi Everyone, We have underfloor heating powered by oil. I'm thinking of purchasing an ASHP to take advantage of the RHI. There are a number of models on Ebay. Does anyone have any recommendations, or ones to especially avoid?
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ASHP's and EBAY
Hi Everyone, I 'm seriously considering buying an ASHP ( we are on oil at the moment, and our heating bills are grim). I have seen them on Ebay, but given the size of the purchase, I'm a bit cautious.. Does anyoe have any Ebay recommendations, or warnings about who to buy from? Many thanks in advance of any replies.
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GSHP Running Costs?
Is there anyone here who has a GSHP and UFH who can give me some idea if it is meeting specified running costs as detailed when installed? Or any links? Still hearing lots of rumours that that electricity costs are high but I can't substantiate them.
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Ecodan ASHP Help...BILLS!!!
Hi All, I have recently moved into a newly built house. 5 bedrooms and quite spacious. The developer has specified a Mitsi Ecodan HW140 single phase unit for the house. It has been coupled with a Manco cylinder, underfloor heating with stats in each room, rads upstairs with a central stat, hot water runs for 1.5 hours a…
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Ground Source Heatpump Problems
Could anybody offer some advice about ground source heatpumps please? I'm finding the system more expensive to run than my neighbours in bigger houses with oil or lpg boilers. I had a ground source heatpump system installed in Feb 09. The manufacturer actually installed the system and specified that no controls were to be…
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ASHP's & planning consent, opinions sought
Hi all. Having had planning refused for a planned ASHP (ecodan) for an apartment a week ago, I would like to hear from anyone who has had approval/refusal & if it is worth appealing. Reasons for refusal were a) noise & b) conservation area. 1) 45dB is not noisy, I am told a combi boiler flue is 40dB. So only a bit more…
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ASHP or GSHP
after much research and no gas we are looking at fitting ASHP or GSHP. Would probably prefer to go for air source mainly because of less disruption whilst installing. Property is new build well insulated with underfloor heating throughout. We have been to lots of self build shows, read all the literature but would really…
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Air source heatpump
My ASHP was 2 years old in November 2009 and since installation has constantly failed to work properly. It broke down a few days after the warranty ran out and since November it has been silent. I have tried to get an engineer to come and fix it from the manufacturer and have had no success in getting someone to visit. I…
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ASHP's & planning consent
Hi all. Picked up good info here on ASHP's (the good & the bad) & will be going down the ASHP route (hopefully quickly). Anyone been through the planning process? Looked at the forms, don't really cater for such things, call to the local planning office highlights their lack understanding. Thanks
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ASHP's and the maze of info
Hi everyone, I wish to install a CO2 & pocket friendly heating system in my appartment, there is no gas. It is purpose built, but in the 70s so not up to the latest codes by a long way. 80m2, first floor. South coast. My initial feelings are not good, I find a market with little competition and therefore things are…
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Considering ASHP in old property
Hi Forum, I own an old property which is currently heated by oil fired CH, this provides hot water too which I can heat with an immersion heater on Economy 7, I tend to do this on weekdays to let the CH take the oil without the distraction of heating water too. I am interested in an Air Source Heat Pump, but do wonder…
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ASHP costs
Hi all, I live in a village with no gas and currently have storage heaters. I have been looking at the ASHP systems and was just wondering how much they cost installed. I know there are a lot of factors but was looking at a split system with a heater in the front room and one at the top of the landing. Was looking at the…
