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Air Source Heat Pumps (ASHPs)
Last Post by bontwoody 3 hours ago
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bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 926
Topic starter 27/10/2025 3:53 pm  

Ive just installed a dongle that allows me to monitor and communicate with an Ecodan through Melpump. Its a snip at £35 but there isnt a lot of documentation I can find. Does anyone on here use it? 

Here is an example of its reports for anyone interested.

{34662441 DBBE 4062 8B4B 9AE887B83E39}

House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
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 DavidAlgarve
(@davidalgarve)
Reputable Member Member
Joined: 2 years ago
Posts: 147
27/10/2025 4:27 pm  

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 MelCloud is connected to. Do you somehow retain a link to MelCloud and MelPump if you use their service?

In addition to the ASHP, I use MelCloud for a Mitsu Air conditioning unit and wouldn't want to lose that.



   
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bontwoody
 bontwoody
(@bontwoody)
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Joined: 4 years ago
Posts: 926
Topic starter 27/10/2025 4:31 pm  

@davidalgarve The dongle I bought allows the standard Mitsu adapter to plug into it so you can have both. Ive copied in the chap I bought it off so hopefully he will be able to answer the technical questions 🙂


House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
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 DavidAlgarve
(@davidalgarve)
Reputable Member Member
Joined: 2 years ago
Posts: 147
27/10/2025 4:34 pm  

Re my concern about the MelCloud connection, I have just read the MelPump installation instructions and it appears that they have made provision for plugging in the Mitsu WiFi adapter into their device. However, not sure about how Log On data works for the two systems. Perhaps Bontwoody can advise?



   
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bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 926
Topic starter 27/10/2025 4:48 pm  

@davidalgarve Unfortunately not as I didnt install Melcloud, the dongle doesnt need it. Hopefully Philip will be able to help when he joins the discussion


House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
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