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Last seen: Jan 8, 2025
Can we please keep the discussions here civil please? Disagreement on specifics (last para) is fine but personal insults (first para) isn't.
Here's another factor to throw into the mix; for a given LWT and OAT, COP varies with output. This is for a 11.2kW Ecodan. At 7 deg OAT and 35 de...
@tufty changing from -4 to -15 freeze protection would mean adding glycol to the system. That's not a quick or cheap job. It normally needs the sy...
Yes, but more as a nice to have than a money saver. I don't think paid-for wood will save money over an ASHP. From what I can see it's going to be 2...
@bontwoody when I said it was cheaper to run because it was smaller I meant that it would have a better COP. If you compare Mitsubishi Ecodans, the...
Sometimes I think we lose sight of why we spend all this time and money on expensive and complicated heating systems. Isn't it to keep warm and have l...
@crustydoodle, this definitely isn't normal. My Ecodan doesn't do this; nor does any other I have heard of. What is puzzling is that it all does l...
@cathoderay, will you be able to write your own algorithms/routines to do this, i.e monitoring and adjusting in real time?
Alex, I doubt there is anyone here with the sort of detailed knowledge. I suggest you try one of the Facebook Mitsubishi groups as they have instal...
@willen-john, I asked on another group and was told that some FTC6s came without this function. I have no idea why. Maybe you could contact Mitsubi...
There was quite a bit of discussion in this thread. No firm conclusions though. My answer to (almost) the same question a few days ago
I think this is a really significant and positive development so well done to Octopus. It doesn't really matter if 75 deg is never used in practice. ...
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Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok Apologies, it wasn’t an attempt to...
By Tomtheheatingengineer , 3 minutes ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 9 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 1 day ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 2 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 2 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 2 days 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 , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days 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 , 3 days 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 , 4 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 , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 5 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 , 5 days ago



