Last seen: Sep 13, 2025
Thank you! I think the fall takes as long as it does because as the LWT/RWT fall, and they approach room temp, the delta t between them and the room t...
The last 24 hours data, showing another setback and recovery, with minimal extra energy in during the recovery boost. This time the actual room temp f...
@allyfish - I posted my first overnight setback plus recovery boost data earlier today and it shows pretty convincingly that in my house in last night...
That's fine, it is just it would have been interesting to see the data if it was available. Given my modbus setup, I should now be able to get minute ...
I think this is an interesting question. In both cases, the intention is to lower output, though the reasons are slightly - but are they materially? -...
I've just read the Grant link above ("Blog | How to control your heat pump") and it seems the terminology is somewhat confused as to what a setback is...
Isn't this possibly over-complicating things, as I pointed out earlier, using a room stat setback acts in effect as a timer (at least it does in my ho...
@derek-m I didn't quote you (no quotation marks, and my wording is 'appear to be firmly of the opinion', not X said Y), I paraphrased you, or you mi...
Just to add an observation on this: I did in fact manage to do this, in the cold snap last December, by using the room stat: normal target IAT is 19 d...
That sounds very plausible, except for the fact the LWT rise appears to start just before the RWT rise, see at around 0703h. The four phase pattern is...
Here are the minute by minute energy values alongside the minute by minute temp values I posted earlier. Note they are Wh, not kWh, and, as a sanity c...
Latest Posts
-
RE: Help me keep the faith with my air source heat pump installation
@grantmethestrength how did you adjust the pump?
By AdamK , 5 minutes ago
-
@jamespa thanks, I appreciate the offer. For n...
By DREI , 3 hours ago
-
RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
@transparent what I don't understand about these "rogue...
By Scalextrix , 5 hours ago
-
RE: Who’s Caved and Switched the Heating On Already?
I have 3 women in the house, 2 little ones, so my heati...
By DREI , 8 hours ago
-
@damon thanks. I will do as you suggest. Hopefully I wi...
By bontwoody , 8 hours ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 1 day ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 1 day ago
-
RE: Midea ASHP – how to set weather compensation
Mostly, I think, but with some caveats. I set the TI...
By cathodeRay , 1 day ago
-
RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 2 days ago
-
RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 2 days ago
-
RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 2 days ago
-
RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 2 days ago
-
RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 3 days ago
-
RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
By ASHP-BOBBA , 3 days ago
-
RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 4 days ago
-
RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 4 days ago
-
RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 4 days ago
-
RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 4 days ago
-
RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 4 days ago
