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: Apr 28, 2023
Derek thanks for taking the time to reply. Basically Detla T has no real effect. The biggest influence is LWT water temperature. I've reset everythi...
@derek-m the LWT is 32 whilst the return is 29 ( 1 Deg difference from original delta T5). As the additional 1oC is on the return (originally 5) I'm ...
I only checked the leaving water temperature (from Samsung display). When it runs again tomorrow I'll have a look at the difference between the 2. I...
Derek, so if the pump is at a fixed speed, WC has been set 30-40 (both before and after delta T change),delta T reduced from 5 to 3, then the flow tem...
just to confirm: Settings originally Delta T 5oC changed to Detla T 3oC. As far as I can tell it changed the compressor, as the noise of the pump chan...
@bontwoody the heat pump came with the house from new. How on earth do you confirm if it's been oversized, Do I have anyway of rectifying this with th...
Ps large spike @ 1pm.ish is toaster being switched on for lunch. Either side of this is mostly heat pump consumption. You can see the difference befor...
Ps large spike @ 1pm.ish is toaster being switched on for lunch. Either side of this is mostly heat pump consumption. You can see the difference befor...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 3 hours ago
-
RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 3 hours 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 , 8 hours ago
-
RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 10 hours 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 , 10 hours ago
-
RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 11 hours 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 , 1 day ago
-
@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 1 day ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
-
RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
-
RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
-
@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
-
RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago
SPONSORS
