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Last seen: Aug 23, 2026
@njt that’s fine then. One input and one output is a 2 port buffer=volumiser
Hi Ash, when was your soon to be new home built? Because it will only be as good as building regs were at the time. When you get into details lot...
Going back to the OP. Since you’ve come out as needing a 8kW Daikin, you won’t get the extra performance penalty associated with the 9-16kW model. ...
I realise now that I was replying to an earlier message! I was replying to your brain knot comment. Sorry! It's not surprising you didn’t understand ...
@lucia if your house needs 6kW then that is what you need. There’s nothing you can do with bigger radiators to make a 4kW heat pump give you enough he...
From your information you need 6kW. Bigger radiators DON’T give you the heat output you need, all you would have is lower temperature flow and a too c...
Our planning permission has come through and the MCS levels were applied. We have to install in line with the permission. Our nearest neighbour is in ...
This site is one of the most comprehensive for what size heat pump you might need, as you may have read too big a pump can’t be less efficient T...
This is a very interesting thread. Our ashp is being fitted soon, and we’re going onto OE cosy and using our battery to charge up to get over the peak...
@transparent I did comment but I would get an E at best since I didn’t answer all of the questions in sections 1& 3 and didn’t touch 2. My input...
@roel You also may already have a buffer which can also be called a low loss header. @johnmo put in some schematics above. You might be able to trace ...
Derek’s approach (as usual) is an excellent one. You do not need a buffer, just a volumiser. Once you understand how your system balances up then it’s...
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Degrees of Separation
Latest Posts
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 6 minutes ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
It can be done but really, really, don't, you will regr...
By JamesPa , 9 minutes ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
I think this calculation goes the other way. 3.54kW ga...
By JamesPa , 22 minutes ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 17 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 17 hours ago
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RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 17 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 1 day ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago
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