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alternative to Homely - HavenWise. Anyone used it?

 
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Air Source Heat Pumps (ASHPs)
Last Post by HCas 9 months ago
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 Broadsman
(@broadsman)
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Joined: 1 year ago
Posts: 69
03/02/2025 3:44 pm  

@editor Thank you, and fingers crossed.

 



   
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 Alfapat
(@alfapat)
Reputable Member Member
Joined: 3 years ago
Posts: 186
03/02/2025 5:32 pm  

Posted by: @alfapat
↑

It looks like I can fit Modbus to my Gen 5 Heat pump , I have been sent an instruction to change the installion on my Samsung Controller. 

My question remains Homely or Havenwise

A query and a rEquest sent to Havenwise yesterday has not been answered yet , so I am going to ask if anyone on this forum who has Havenwise do I need Modbus board as well as Samsung WIFI . I now know that I can or someone can , fit a MODBUS MIM-B19N board to a GEN 5 HP 

 



   
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 Arundalep
(@arundalep)
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Joined: 1 year ago
Posts: 26
03/02/2025 5:56 pm  

@alfapat you only need the Modbus interface for Homely. Havenwise works through the Samsung API so needs the WiFi interface (which Homely doesn’t).

Homely - Modbus Interface

Havenwise - WiFi Interface 

I would add though, I have plenty of experience and understanding re Homely & Modbus but no experience with Havenwise or the Samsung API so it might be better for someone from Havenwise to reply before you decide.


1970’s 3 bed detached house in West Sussex. Mains gas disconnected September 2023.
Samsung HTQ 8kW heat pump using mostly existing radiators. House is warm 24/7 (normally between 20.3-20.6 C but currently with a newborn its 21-21.2 C).
Sunamp for hot water storage.
Solaredge 6kWp PV and 10kWh battery
Vehicle 2 Grid charger (used with a Leaf)
Wallbox EV charger (installed for Octopus Intelligent).
Home Assistant used for HEMS with lots of custom ESP devices to allow integration.

Insulation upgrades:
EPS cavity wall insulation.
Improved loft insulation (renewed and 300mm where possible).


   
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 Arundalep
(@arundalep)
Trusted Member Member
Joined: 1 year ago
Posts: 26
03/02/2025 6:02 pm  

@broadsman sorry I missed the is previous reply.

Havenwise wasn’t available when I fitted my heat pump and Homely had just launched. I wanted to try it. It is very good at what it does and our use case is very complex. In short there is no product available that does what I want so I did it myself. 

We have a Samsung HTQ, Sunamp for hot water, solar, battery, EV charger and V2G (vehicle to grid), using Octopus Intelligent Go. It is all fully integrated with Home Assistant and has taken a lot of work but now works great.


1970’s 3 bed detached house in West Sussex. Mains gas disconnected September 2023.
Samsung HTQ 8kW heat pump using mostly existing radiators. House is warm 24/7 (normally between 20.3-20.6 C but currently with a newborn its 21-21.2 C).
Sunamp for hot water storage.
Solaredge 6kWp PV and 10kWh battery
Vehicle 2 Grid charger (used with a Leaf)
Wallbox EV charger (installed for Octopus Intelligent).
Home Assistant used for HEMS with lots of custom ESP devices to allow integration.

Insulation upgrades:
EPS cavity wall insulation.
Improved loft insulation (renewed and 300mm where possible).


   
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 Alfapat
(@alfapat)
Reputable Member Member
Joined: 3 years ago
Posts: 186
03/02/2025 10:03 pm  

@arundalep Many Thanks for your thoughts there, I will wait in that case . I have to say I am not going down the solar route or EV but still want a good cost worthy solution. Ill hang fire till then.

Query here required , you still need something to energise The Heat Pump so that WiFi connects to it surely . 


This post was modified 9 months ago by Alfapat

   
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 Arundalep
(@arundalep)
Trusted Member Member
Joined: 1 year ago
Posts: 26
05/02/2025 10:53 am  

Posted by: @alfapat
↑

Query here required , you still need something to energise The Heat Pump so that WiFi connects to it surely . 

I’m not sure what you are asking, can you clarify the question?

The WiFi interface provides an internet gateway to the heat pump. You can then control your heat pump using the SmartThings app or grant access to third parties (like Havenwise) for them to control it remotely. The WiFi interface is always connected and enabled. 

 

 


1970’s 3 bed detached house in West Sussex. Mains gas disconnected September 2023.
Samsung HTQ 8kW heat pump using mostly existing radiators. House is warm 24/7 (normally between 20.3-20.6 C but currently with a newborn its 21-21.2 C).
Sunamp for hot water storage.
Solaredge 6kWp PV and 10kWh battery
Vehicle 2 Grid charger (used with a Leaf)
Wallbox EV charger (installed for Octopus Intelligent).
Home Assistant used for HEMS with lots of custom ESP devices to allow integration.

Insulation upgrades:
EPS cavity wall insulation.
Improved loft insulation (renewed and 300mm where possible).


   
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 Alfapat
(@alfapat)
Reputable Member Member
Joined: 3 years ago
Posts: 186
05/02/2025 12:08 pm  

@arundalep I thought the Samsung  wifi needed some sort of hardware in the HP , so thinking that would be the Modbus card , but clearly not. How does it communicate with the Heat Pump, perhaps your not the person to ask there as you have Homely ?

Anyway I have enquired into getting this from Samsung, but its slow going!

 

 

 

 

 

 

 

 

 

 

 

 

 

 


This post was modified 9 months ago by Alfapat

   
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Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Famed Member Moderator
Joined: 4 years ago
Posts: 1022
05/02/2025 12:37 pm  

Posted by: @alfapat
↑

@arundalep I thought the Samsung  wifi needed some sort of hardware in the HP , so thinking that would be the Modbus card , but clearly not. How does it communicate with the Heat Pump, perhaps your not the person to ask there as you have Homely ?

Anyway I have enquired into getting this from Samsung, but its slow going! 

Any heat pump needs some hardware to communicate. If you want it to communicate via wifi, it needs a wifi adapter. If you want it to communicate via modbus, it needs a modbus card.

Since controlling a heat pump using an app is a selling point, it's very common (but not universal) for either the wifi hardware to be built into the heat pump or for installers to include the wifi module within the quote and installation. Modbus is far less commonly used so it's much less common for a modbus interface to be provided as standard.

Homely controls the heat pump directly and so needs a modbus interface to attach its wires to. Havenwise controls the heat pump via the manufacturer's cloud-based interface so as long as the heat pump is talking with the manufacturer's systems then it'll receive Havenwise's instructions via exactly the same route as if you were making a change using an app on your phone.

 


105 m2 bungalow in South East England
Mitsubishi Ecodan 8.5 kW air source heat pump
18 x 360W solar panels
1 x 6 kW GroWatt battery and SPH5000 inverter
1 x Myenergi Zappi
1 x VW ID3
Raised beds for home-grown veg and chickens for eggs

"Semper in excretia; sumus solum profundum variat"


   
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 Arundalep
(@arundalep)
Trusted Member Member
Joined: 1 year ago
Posts: 26
05/02/2025 1:22 pm  

@alfapat the Samsung WiFi interface communicates with the heat pump on their proprietary NASA network (F1 & F2) and is powered by V1 & V2.  You do not need anything else (everything comes in the kit).


1970’s 3 bed detached house in West Sussex. Mains gas disconnected September 2023.
Samsung HTQ 8kW heat pump using mostly existing radiators. House is warm 24/7 (normally between 20.3-20.6 C but currently with a newborn its 21-21.2 C).
Sunamp for hot water storage.
Solaredge 6kWp PV and 10kWh battery
Vehicle 2 Grid charger (used with a Leaf)
Wallbox EV charger (installed for Octopus Intelligent).
Home Assistant used for HEMS with lots of custom ESP devices to allow integration.

Insulation upgrades:
EPS cavity wall insulation.
Improved loft insulation (renewed and 300mm where possible).


   
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 HCas
(@hcas)
Reputable Member Member
Joined: 2 years ago
Posts: 118
05/02/2025 4:11 pm  

Thank you @majordennisbloodnok and @arundalep  for answering the question. Spot on 🙂

 

@arundalep Nice setup btw you have!


CEO and co-founder at HavenWise


   
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