Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Sep 19, 2024
Some manufacturers do publish operating data performed during standard test conditions. That is the source of data behind the Modeling Tools I have cr...
Don't worry, the neighbours will complain about the noise and then the heat pump will have to be moved or removed. But having been installed it will h...
The temperature sensor will be inside the controller, unless you have installed a remote unit, so will be of no use for room temperature control. Yo...
Where is the controller located?
It would appear that your heat pump is cycling. Is your heat set for a fixed Leaving Water Temperature (LWT), in Weather Compensation (WC) mode, or ...
@cathoderay Excellent data once more. The fact that the OAT reading appears to increase by approximately 5C during the setback period, would make ...
The reason that I mentioned the cycling was because of the fact that it makes doing an accurate comparison between theoretical and actual that more di...
Could you explain the reason for wanting the heat pumps to run in tandem? I would have thought that if the actual heating demand, is not greater than ...
@cathoderay The Modbus registers are two byte 16 bit long. When displayed in binary the left-hand end is normally denoted to be the Most Significant...
@jamespa Sorry James, I forgot to fully answer your query. The WC Modeling Tool infers that Energy Supply will be a product of LWT and the capacit...
@jamespa Yes, the raw data was kindly supplied by CathodeRay, the accuracy of which I am not questioning. My objective is to try to avoid the comp...
AA mode is designed to keep the IAT constant, so to the controller even 1C setpoint change is a large deviation between desired and actual. This is th...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Not a problem; that’s why I left it as it was. The pers...
By Majordennisbloodnok , 7 hours ago
-
RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 16 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 2 days ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 2 days ago
-
RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 2 days ago
-
RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 2 days ago
-
RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 2 days ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 3 days ago
-
@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 3 days ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
-
RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 4 days ago
-
RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
-
@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 5 days ago
-
RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago
SPONSORS
