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Last seen: Aug 24, 2026
@bontwoody Very interesting indeed. I have started a trial with HavenWise and I think we are moving forward, but I am not entirely convinced at this s...
@f1p Re: "What could happen is Havenwise turns around to you and says it's no longer possible for us to control your heat pump because Mitsi no long...
@morgan I am also on the cusp of trying Havenwise, so would be interested if you could define what data is available from MelPump that is not given b...
@majordennisbloodnok Yes, a good explanation. My question, (obviously poorly put) was: Does the use of MelPump in any way interfere with communicati...
Perhaps I am missing something, but I don't get the answer that I was looking for with regard to retaining control and data for other Mitsubishi devic...
Re my concern about the MelCloud connection, I have just read the MelPump installation instructions and it appears that they have made provision for p...
Very interesting and I wonder how it compares with Havenwise? I see that it connects through CN105 and that is the connector that my WiFi link to M...
This is the User Manual for the Ecodan to MelCloud interface and you will see it quotes MAC-5571F-E Dated November 2012! The one I have was installe...
Perhaps we should wait for HavenWise to confirm, but I have just installed the Wireless Controller Model PAR-WT60 transmitter and receiver in the bel...
@bontwoody Please don't take my word for it. I said it looks like the WiFi Interface but it is not quite like the one I have (see photo) and they may ...
That looks like the wireless adapter to allow the Ecodan to communicate with MelCloud. My understanding (and what I am working towards) is that Have...
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Latest Posts
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RE: How Accurate Is My DIY Heat Loss Calculation?
@editor Thanks Mars, I have been enjoying playing with ...
By kilgorexv , 3 hours ago
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New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
I am feeling baffled and worried:We are having a an Aro...
By GutoFfowc , 5 hours 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 , 8 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 8 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 , 9 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 , 2 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 , 2 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 , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago



