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Last seen: Mar 10, 2026
@jancold Not a plumber but I believe that is the blending valve and pressure regulator. No experience on how to adjust it. Another thoug...
Have you considered the Thermostatic Mixing (Blending) Valve (aka Anti-Scald or Tempering Valve) that mixes the hot water with mains to control the te...
This is how Daikin run their heat pumps. Weather Compensation + Thermostatic control = Water pump runs Continuous or OnDemand (default) - configurab...
Enable installer mode - 5678 Enter the Space Heating/Cooling menu Enter Pump Operation Mode - Select Continuous or Sample (default) Enter Pump ...
I think it's worth adding here that when you enable the Daikin LWT mode the pump switches from demand/request to sample. That means the pump will cycl...
More like Octopus wanted to fit a Cosy 6 at the end of the garden, avoid planning permission and re-use the tiny airing cupboard. My preference was to...
@toodles Useful reply and because Heat Geek mentioned it in the Daikin MMI vid I didn't do any further checking. Using Grok again to sift through all ...
Just to say I did read this post before joining the forum and it inspired me to start looking up the LWT mode. I had seen the Heat Geek Daikin MMI vid...
Octopus - Daikin Altherma 3M 4KW heat pump install - April 2025 My overall experience has been excellent. My house is a fairly straight forward 2 be...
DAIKIN ONECTA Simple answer is not a great deal. You can monitor the current hot water and heating modes. The temps and targets are indicated when...
Daikin Altherma 3M - 4kW (R32 2022 Release) (EDLA04E2V3) Installed by Octopus April 2025.
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
I had a look at the manual for the pro and it mentions ...
By Batpred , 12 minutes ago
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RE: Solar Produced vs Home Consumed
It's worth adding that if you have a hot water tank and...
By JamesPa , 30 minutes ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@editor Sorry Mars, I didn’t see a notification about ...
By Toodles , 49 minutes ago
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RE: Hitachi Heat Pump being replaced with Vaillant
Yes to be configured as a volumiser. The pump is to be...
By trebor12345 , 1 hour ago
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RE: Anyone concerned about GivEnergy?
So it seems subscription day has finally arrived for Gi...
By TechnoGeek , 3 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
By JamesPa , 5 hours ago
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 5 hours ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 18 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 1 day ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 1 day ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago



