mefty on "oil fired central heating - how does it compare to gas?"
Air source should be about a fair bit less than oil but not as cheap as mains gas (alot cheaper than bottled gas).
View ArticleEdukator on "oil fired central heating - how does it compare to gas?"
Using an efficient air/air heat pump (COP 3) will cost about the same as gas but a low-temperature, ground/underfloor system will have a COP of 4.5 or better and be cheaper to run than gas or fuel oil....
View Articlemefty on "oil fired central heating - how does it compare to gas?"
In my area and for most commercial organisations electricity is four times the price of gas so you need a COP of over 4 to match gas, COPs of 3 are I understand realistic for air source, 4.5 sounds...
View ArticleElShalimo on "oil fired central heating - how does it compare to gas?"
Edukator - it's a house were thinking of buying so it is already installed
View ArticleEdukator on "oil fired central heating - how does it compare to gas?"
If I'd been really enthusiatic I'd have quoted a COP of 6 for water/water heat pumps. COPS up to 6 are possible with vertical drilling to find ground at 12-15°C all year round and feeding under-floor...
View ArticleEdukator on "oil fired central heating - how does it compare to gas?"
I'd understood that, EL Shalimo. If the cost of running the oil-fired house is putting you off buying it and there's no mains gas then a heat pump is a viable way of heating a house for similar running...
View Articlemefty on "oil fired central heating - how does it compare to gas?"
I have never seen a COP of 6 on ground source and more than 3.5 for air source and I have seen the numbers for the some of the largest installations in Europe.
View ArticleBear on "oil fired central heating - how does it compare to gas?"
And if you want to run your underfloor on such a low temperature you will need to have had the system designed to do so.
View ArticleEdukator on "oil fired central heating - how does it compare to gas?"
Well there are plenty in France. Many don't quote COPS at all because the ground is warm enough to provide water that doesn't need heating. Some use the heat pump to gain only 10°C. The projects are on...
View ArticleEdukator on "oil fired central heating - how does it compare to gas?"
Or insulate the house a bit better so 25-35°C water in the under-floor system is all that's needed, Bear. I've taken the central heating out of my own home. A small wood burner and a 2m3 of wood is all...
View Articlemefty on "oil fired central heating - how does it compare to gas?"
Your original 4.5 appeared to be for air source hence my disbelief, I agree 4.5 is easily possible on ground source but the OP is looking at air source. Your ground source numbers are still toppy in my...
View ArticleElShalimo on "oil fired central heating - how does it compare to gas?"
As a lay person could you please recommend a good objective source of information without the marketing bull?
View Articlemefty on "oil fired central heating - how does it compare to gas?"
Here looks realistic for figures, anyone not selling one technolgy has a better chance of being impartial.
View Articleturkinator on "oil fired central heating - how does it compare to gas?"
If you want to see some indepedent figures re ASHP look no further than the Energy Saving Trust study that used figures from real installations. The average COP was 2.2 with very few reaching...
View ArticleBear on "oil fired central heating - how does it compare to gas?"
yet the RHI consultation has proposed higher tariffs for them than biomass? Work that out!
View Articlegavtheoldskater on "oil fired central heating - how does it compare to gas?"
when we rennovated 4 years ago we put oil in, we're in the sticks so no gas, i figured that bio-fuel would kick in quite soon. what a huge mistake.our first fill of 1000l cost way less than 500 does...
View ArticleBear on "oil fired central heating - how does it compare to gas?"
gav - biomass. any heat pump won't really work in old leaky properties.
View Articletrail_rat on "oil fired central heating - how does it compare to gas?"
I know your listed but until you sort out your insulation issues anythings going to cost a fortune. As ive said in the past on here . Me and my neighbour have identical properties. We are semi...
View Articlegavtheoldskater on "oil fired central heating - how does it compare to gas?"
the house is the wrong side of a hill and dug into said hill so does'nt really get heated up from the sun.the main house is granite, the extension single block (i posted a thread a day or two back on...
View Articletrail_rat on "oil fired central heating - how does it compare to gas?"
Sounds like remedial issues will be expensive if your getting mould that easy. Dpc between you and the hill is likely not existant ? Any idea ? There are options but scary money i suspect.
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