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Post by zanygame on Jun 8, 2023 17:14:41 GMT
Yes they run continuously, but that they make a lots of noise is just a lie. They make less noise than air conditioning. Here, its only 90 seconds. www.youtube.com/watch?v=GKDF5a47eJkTotal crap they are bloody noisy and totally inefficient. Nope, I have them, you don't. They are very quiet and as efficient as gas central heating. There are lots of official figures available for those who really want to know. Of course if you've decided you don't like them regardless, then you have Jonsky. |
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Post by Dan Dare on Jun 8, 2023 17:14:46 GMT
And what's more, contrary to your regal pronouncements, it heats our rather large house which has five heating zones just fine. I'm Mme D would complain if it didn't.
[this to Bentley]
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Post by Bentley on Jun 8, 2023 17:15:57 GMT
I’ve spoken to several gas engineers and electricians over the past 18 months , some of them who fit both heat pumps and gas boilers . They have all told me that heat pumps are fine for new builds but not for older houses . I won’t be considering a heat pump in the future . Also Cadent are busy preparing all the domestic gas pipes for hydrogen gas. They are doing this outside my house now. No objection to hydrogen, but I suspect it will prove expensive. Still good to see you are interested in green energy.  Heat pumps will be expensive when you need a fan heater in the winter and electric combi boilers are really expensive to run . The bloke who services my gas boiler( and repaired it ) has a ground source heat pump . He’s a real eco worrier too. I listen to him like little grasshopper listened to that bloke with ping pong ball eyes😁 But I talk to every gas engineer and electrician ( and builder)that I can. It’s an important issue. |
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Post by Dan Dare on Jun 8, 2023 17:18:15 GMT
Are you sure that the people who service your gas boiler are really qualified to expound on the relative merits of different energy systems?
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Post by Bentley on Jun 8, 2023 17:19:21 GMT
And what's more, contrary to your regal pronouncements, it heats our rather large house which has five heating zones just fine. I'm Mme D would complain if it didn't.
[this to Bentley]
I once had a Nissan 200sx . I only used to get about 25 mpg out of it and so did most of the lads on forum . However there was a couple of owners who apparently got 35 mpg all day ,everyday . I was always happy for them , as I am happy for you . |
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Post by zanygame on Jun 8, 2023 17:19:33 GMT
Why are heat pumps 'shit' for older houses? Assuming they are brought up to modern standards for insulation, air leakage, glazing etc. You'd be foolish to install any form of central in a house which hasn't been updated or built to modern standards in the first place. If old houses were made into new houses then there would not be a problem . Old cars could be fitted with an electric powered engine and that would cure the problem of fossil fuel engines , right ? You may have a point here Bentley. I will investigate, but it might be that if an old house is very energy inefficient, single glazed, no cavity insulation, poor roof insulation. That the number of heat pumps needed to keep it warm would prove inviable. I live in a modest 4 bed house and use 3 standard air source heat pumps to keep it warm, but being an eco freak my home is also very well insulated. I will read up and report back. |
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Post by colbops on Jun 8, 2023 17:19:50 GMT
Those who are fool enough to have these monstrosity may put up with the noise but I can assure you the neighbours don't. This is one of reasons people do not like them or have any intention of owning one. Must be an installation issue, mine are almost silent (As in the video I posted) My neighbours didn't even know I had them. People have had aircon units for years, heat pumps are no different in their noise levels. That is just a myth. Developers will be furiously smashing gas boilers into new builds 24 hours before they aren't allowed to anymore. It is the nature of the construction industry |
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Post by colbops on Jun 8, 2023 17:23:28 GMT
Are you sure that the people who service your gas boiler are really qualified to expound on the relative merits of different energy systems? Most of them aren't even qualified to correctly balance a heating system connected to a gas boiler, let alone talk about different energy systems. |
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Post by Bentley on Jun 8, 2023 17:23:48 GMT
Are you sure that the people who service your gas boiler are really qualified to expound on the relative merits of different energy systems? Yes. He is installed heat pumps , electric heating systems , gas boilers , radiators , pressure flushed systems . I also spoke to electricians who worked on sites . All in all I would trust them over a bloke on the internet who thinks that raising the insulation spec on old house to new build level is easy but thanks for your word of caution. |
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Post by Bentley on Jun 8, 2023 17:28:57 GMT
If old houses were made into new houses then there would not be a problem . Old cars could be fitted with an electric powered engine and that would cure the problem of fossil fuel engines , right ? You may have a point here Bentley. I will investigate, but it might be that if an old house is very energy inefficient, single glazed, no cavity insulation, poor roof insulation. That the number of heat pumps needed to keep it warm would prove inviable. I live in a modest 4 bed house and use 3 standard air source heat pumps to keep it warm, but being an eco freak my home is also very well insulated. I will read up and report back. You must know that new builds are built with energy saving number one in mind . Jonksy would know more but new build specs and materials are nothing like old build afaik. I suspect that getting my house anywhere near new build spec would need a lot of money and smaller rooms . I notice that you use 3 air source heat pumps . Can you tell me more ? |
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Post by zanygame on Jun 8, 2023 17:29:06 GMT
No objection to hydrogen, but I suspect it will prove expensive. Still good to see you are interested in green energy. Heat pumps will be expensive when you need a fan heater in the winter and electric combi boilers are really expensive to run . The bloke who services my gas boiler( and repaired it ) has a ground source heat pump . He’s a real eco worrier too. I listen to him like little grasshopper listened to that bloke with ping pong ball eyes😁 But I talk to every gas engineer and electrician ( and builder)that I can. It’s an important issue. I've had my heat pumps for 3 plus years, I've had to back them up with an electric fire in the lounge 3 times to date a total of 5 evenings. They work well down to minus 6 but then struggle. You can get ones that work down to minus 12 but I didn't feel the need to pay the extra for these. My water is heated by a high efficiency electic boiler which runs at 6kwh for 30 minutes twice a day. |
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Post by zanygame on Jun 8, 2023 17:31:52 GMT
Must be an installation issue, mine are almost silent (As in the video I posted) My neighbours didn't even know I had them. People have had aircon units for years, heat pumps are no different in their noise levels. That is just a myth. Developers will be furiously smashing gas boilers into new builds 24 hours before they aren't allowed to anymore. It is the nature of the construction industry Agreed, but then developers are already having to meet new warm roof regulations along with induction hobs etc etc. So I kind of feel for them at the front line of climate change. |
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Post by Pacifico on Jun 8, 2023 17:33:40 GMT
Why are heat pumps 'shit' for older houses? Assuming they are brought up to modern standards for insulation, air leakage, glazing etc.
You'd be foolish to install any form of central in a house which hasn't been updated or built to modern standards in the first place. Who pays for all this?. Currently older houses can run quite well with gas boiler central heating - as you point out, to use heat pumps they really need underfloor heating, good insulation, triple glazing etc etc. So you end up spending tens of thousands of pounds to end up with a heating system that does the same as what you have now and are perfectly happy with. |
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Post by Dan Dare on Jun 8, 2023 17:33:56 GMT
If I get a chance tomorrow I'll go out and check the dB with my sound pressure meter. This is for the external unit only since the interior unit which is in the garage is completely silent.
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Post by Bentley on Jun 8, 2023 17:36:38 GMT
Heat pumps will be expensive when you need a fan heater in the winter and electric combi boilers are really expensive to run . The bloke who services my gas boiler( and repaired it ) has a ground source heat pump . He’s a real eco worrier too. I listen to him like little grasshopper listened to that bloke with ping pong ball eyes😁 But I talk to every gas engineer and electrician ( and builder)that I can. It’s an important issue. I've had my heat pumps for 3 plus years, I've had to back them up with an electric fire in the lounge 3 times to date a total of 5 evenings. They work well down to minus 6 but then struggle. You can get ones that work down to minus 12 but I didn't feel the need to pay the extra for these. My water is heated by a high efficiency electic boiler which runs at 6kwh for 30 minutes twice a day. You have a hot water tank ? |
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