Posted by: @batalto@heacol question? Could I simply get a plumber in and installer a manual diverter around the parts you note? It's something I might consider as it's reversible if needed. I did speak to a plumber the other day and he was very hesitant to change anything as he wasn't sure if it might impact (or damage) the HP.
As an experiment it might be very interesting
That is an excellent question. I'd be curious to know the answer to this. And what happens to the buffer tank. Does it just sit there full of water or does it need to get drained?
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Posted by: @samHi, any thoughts on using an electric boiler as a back up/ booster for an ashp in the cold (sub 4°) weather? I don't have gas at the property ( although could get it at a cost) and thought I'd hit upon a solution.
However, can't actually find any installers to ask. Do they actually exist?
Sam.
Hi Sam. How are you guys getting along? Did you ever resolve this issue? I'm gathering by your questions that you're still looking for solutions.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Hi Everyone,
There has been a great deal of discussion over the past few days concerning the design, operation and optimisation of ASHP's. Because systems are different, it is probable that what works fine in one situation, will not work so well in another case. What I suggest is collectively we try to explore different ideas to see what may work best in different situations. Those of you on the forum who are willing to spend a little time monitoring the effect of slight changes, would allow for improvements to be quantified for the benefit of others. It would be highly useful if some of the members who have MMSP installed, could check and feedback details on operational changes.
Posted by: @derek-mHi Everyone,
There has been a great deal of discussion over the past few days concerning the design, operation and optimisation of ASHP's. Because systems are different, it is probable that what works fine in one situation, will not work so well in another case. What I suggest is collectively we try to explore different ideas to see what may work best in different situations. Those of you on the forum who are willing to spend a little time monitoring the effect of slight changes, would allow for improvements to be quantified for the benefit of others. It would be highly useful if some of the members who have MMSP installed, could check and feedback details on operational changes.
I certainly would also be interested in having my current buffered system adapted. With MMSP installed we could easily see the difference and end up with concrete 'comparison' proof.
Having said that, @kev-m, I believe you have the same HP as me, Mitsubishi Ecodan 14kW R32. Once you get your MMSP installed correctly we should be able to get a rough comparison between buffered and non buffered systems if we use the same settings.
Posted by: @markcPosted by: @derek-mHi Everyone,
There has been a great deal of discussion over the past few days concerning the design, operation and optimisation of ASHP's. Because systems are different, it is probable that what works fine in one situation, will not work so well in another case. What I suggest is collectively we try to explore different ideas to see what may work best in different situations. Those of you on the forum who are willing to spend a little time monitoring the effect of slight changes, would allow for improvements to be quantified for the benefit of others. It would be highly useful if some of the members who have MMSP installed, could check and feedback details on operational changes.
I certainly would also be interested in having my current buffered system adapted. With MMSP installed we could easily see the difference and end up with concrete 'comparison' proof.
Having said that, @kev-m, I believe you have the same HP as me, Mitsubishi Ecodan 14kW R32. Once you get your MMSP installed correctly we should be able to get a rough comparison between buffered and non buffered systems if we use the same settings.
I'd be up for that. I'm planning to make some changes in the next few days and would be open to suggestions. My MMSP is monitoring by the minute consumption and flow temperatures and Melcloud is working; the only thing I can't do is delivered energy and hence COP.
@sam I am not sure what problems you are having but I can try to help. You can give me a call on 07883064216 on Monday.
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
Hi Brendon, where are you based?
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
@kev-m I am willing to help you to get your system running in the most efficient way, if only to prove my point. It is not only buffer tanks that is the problem, it is also third party controllers. Why the problems arrise is very complicated and has to do with the performance curves of your heat pump, double pumping the water, mixing water flow and returns, thermal mass of your buildign to mention a few. Tuning a heat pump is actually very simple but difficult to explain why it works.
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
@morgan I am in South Cumbria.
Director at Heacol | Expert Heat Pump Consultant | Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
Posted by: @kev-mPosted by: @markcPosted by: @derek-mHi Everyone,
There has been a great deal of discussion over the past few days concerning the design, operation and optimisation of ASHP's. Because systems are different, it is probable that what works fine in one situation, will not work so well in another case. What I suggest is collectively we try to explore different ideas to see what may work best in different situations. Those of you on the forum who are willing to spend a little time monitoring the effect of slight changes, would allow for improvements to be quantified for the benefit of others. It would be highly useful if some of the members who have MMSP installed, could check and feedback details on operational changes.
I certainly would also be interested in having my current buffered system adapted. With MMSP installed we could easily see the difference and end up with concrete 'comparison' proof.
Having said that, @kev-m, I believe you have the same HP as me, Mitsubishi Ecodan 14kW R32. Once you get your MMSP installed correctly we should be able to get a rough comparison between buffered and non buffered systems if we use the same settings.
I'd be up for that. I'm planning to make some changes in the next few days and would be open to suggestions. My MMSP is monitoring by the minute consumption and flow temperatures and Melcloud is working; the only thing I can't do is delivered energy and hence COP.
You need to get the MMSP fixed as it's the COP we are interested in.
Posted by: @heacol@kev-m I am willing to help you to get your system running in the most efficient way, if only to prove my point. It is not only buffer tanks that is the problem, it is also third party controllers. Why the problems arrise is very complicated and has to do with the performance curves of your heat pump, double pumping the water, mixing water flow and returns, thermal mass of your buildign to mention a few. Tuning a heat pump is actually very simple but difficult to explain why it works.
Brendan, that's very good of you, I would be happy to be a guinea pig (up to a point!). I'll try and draw a schematic of the system because I don't think the supplier did.
Posted by: @heacol@kev-m I am willing to help you to get your system running in the most efficient way, if only to prove my point. It is not only buffer tanks that is the problem, it is also third party controllers. Why the problems arrise is very complicated and has to do with the performance curves of your heat pump, double pumping the water, mixing water flow and returns, thermal mass of your buildign to mention a few. Tuning a heat pump is actually very simple but difficult to explain why it works.
Should this offer been directed at @batalto who initially asked the question about changing the system? @kev-m already has an unbuffered system and at the moment we don't know what COP that is running at due to MMSP issues.
-
Installing your own ASHP - DIY
5 days ago
-
ASHP install contract and BUS grant money
2 months ago
-
High air source heat pump running costs – Vaillant AroTherm Plus
2 months ago
-
Savings - using Weather Compensation & Time of Use Tariffs
2 months ago
-
Heat Pump starting current
3 months ago
- 22 Forums
- 2,044 Topics
- 44.5 K Posts
- 11 Online
- 3,265 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
What's the problem you are trying to solve. The answer...
By JamesPa , 3 hours ago
-
Good luck. For what it is worth my system was very def...
By JamesPa , 12 hours ago
-
RE: Massive Electricity Cost for Running My Air Source Heat Pump
I agree @mark-h The Building Regs are now very readable...
By Transparent , 1 day ago
-
RE: Help me understand my Mitsubishi Ecodan system
@carpenterstation When changing settings in the ser...
By RobS , 1 day ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
Cynically I would suggest its there to protect the inst...
By JamesPa , 2 days ago
-
RE: Ecodan Legionella cycle - immersion heater problem
Thanks for letting us know @clockworks I admire your ...
By Transparent , 2 days ago
-
@fillib what a wonderful result, both for you personall...
By Judith , 3 days ago
-
RE: Revised version of MCS-020 (noise standards for heat pumps)
As you say this is no change, which I personally think ...
By JamesPa , 3 days ago
-
RE: What happens when the outside temperature exceeds the upper WC point?
@editor not via the WC curve but as @old_scientist ment...
By bontwoody , 3 days ago
-
RE: MHHS and Heat Pump compatibility
@toodles to be clear I don't know if there will be a re...
By Scalextrix , 3 days ago
-
I did not know this concept, although others might. I...
By Morgan , 3 days ago
-
RE: Help me keep the faith with my air source heat pump installation
@adamk it's probably filtering different providers in t...
By Mars , 4 days ago
-
RE: why solar diverters for HW instead of the heat pump?
I should probably add to my comments above that, whilst...
By JamesPa , 4 days ago
-
RE: Commencing on an ASHP Installation Process
Lots of reading and questioning which the background ma...
By JamesPa , 4 days ago
-
RE: The Great British Heat Pump Quiz
Not sure how that happened 🤣 I suspect that it ...
By Mars , 4 days ago
-
RE: Help with understanding my Mitsubishi Ecodan air source heat pump
@patch I think @ashp-bobba gave you some great pointers...
By SUNandAIR , 5 days ago
-
RE: Installing your own ASHP - DIY
Hi @tomasmcguinness, how are you progressing with this?...
By Ashfp , 5 days ago
-
RE: Say hello and introduce yourself
Welcome to the forum. If you are new to ASHPs I sug...
By JamesPa , 6 days ago
-
RE: The Rise and Fall of Europe’s Most Generous Green Subsidy
This is where the cold water storage tank was situated;...
By Dwynwen , 7 days ago