Forums

Forums
Renewable Heating
Air Source Heat Pum...
Daikin Wireless The...
 
Notifications
Clear all

Daikin Wireless Thermostat

 
Air Source Heat Pumps (ASHPs)
Last Post by TreeWizard 33 minutes ago
3 Posts
2 Users
1 Reactions
19 Views
RSS
 TreeWizard
(@treewizard)
Active Member Member
Joined: 2 weeks ago
Posts: 9
Topic starter 11/11/2025 12:33 pm  

The placement of my Modoka wired thermostat is far from optimal, it's upstairs, in close proximity to a radiator, so the temperature measured is normally quite a few degrees higher than the rest of the house.  

I've applied an offset to the temperature sensor, to match it to a thermometer downstairs, which does half the job. However, the temperature downstairs fluctuates more, and drops by quite a few degrees more than the thermostat. 

The obvious solution is to move the thermostat, so I can keep living areas warm, then throttle radiators back upstairs, but wiring it somewhere more sensible would be quite a challenge.

I was surprised to see that Daikin don't have solution to solve this problem (unless I've missed it).

Without much more investigation, I've started considering the following options: 

- Automatically modifying the thermostat temperature offset using another wireless thermometer

- Automatically adjust the leaving water temperature offset, to effectively apply an alternative weather compensation curve.

- Wireless serial bridge, so I can move the Modoka anywhere, or just replace with a wireless third party thermostat?

I still need to understand the viability/practicality of the options,  has anyone tried to tackle a similar problem?



   
Quote
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 3 years ago
Posts: 3354
11/11/2025 1:27 pm  

Posted by: @treewizard
↑

just replace with a wireless third party thermostat?

I wouldn't replace with a wireless third party thermostat, thrid party controls and heat pumps are generally best not mixed.  If you do contemplate this you need to be careful which you pick, simple on/off not smart control.

Posted by: @treewizard
↑

- Automatically modifying the thermostat temperature offset using another wireless thermometer

- Automatically adjust the leaving water temperature offset, to effectively apply an alternative weather compensation curve.

- Wireless serial bridge, so I can move the Modoka anywhere

Obviously if you like tinkering these are in principle possible, but personally I stick to the rule that mission critical things in a house need to be operable by the least techy person in the house and repairable by a reasonable third party.  Thats not to say I dont have some home automation, I do, but everything will work without it.  Obviously this is a personal choice influenced by age as much as anything else.

Does Daikin do a wireless controller instead of the wired one, that would be the best option by far if its available.

 

Another option is not to rely on the temperature sensor in the Madoka at all and run on pure weather compensation (which is what I do with my Vaillant, and many other heat pump owners do).  This is going to be the most efficient and there is a good chance the most comfortable!


This post was modified 38 minutes ago by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
ReplyQuote
 TreeWizard
(@treewizard)
Active Member Member
Joined: 2 weeks ago
Posts: 9
Topic starter 11/11/2025 1:34 pm  

Thank you for the advice.  Pure weather compensation would be a much simpler option, I'll check over the manuals and give it a go. 

For the time being, I've just set the offset to the maximum delta between the coldest and warmest points in the house. 



   
👍
1
ReplyQuote



Forum Jump:
  Previous Topic

Currently viewing this topic 2 users ( Mars, TreeWizard ) and 7 guests.

Recently viewed by users: JamesPa 21 minutes ago.

Share:

Join Us!

Podcast Picks

Latest Posts

Click to access the login or register cheese
x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
ShieldPRO →