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: Aug 21, 2026
With your 3kW house (lucky you!) its not surprising that solar gain has a major effect, but then nor does it matter too much if you oversize the heat ...
I am. The assumptions were based on what you had said, were reasonable based on the limited information, and were necessary to explain the measured r...
Yes, Yes, Yes. MCS admit that the current method is not entirely satisfactory, I have it in an email. But they say they 'dont have an alternative'....
resistance is useless!
Three reasons I suspect: 1. I presume that the calculation assumes a room temp of 20/21 not 18.6. That does make a difference 2. Calculated heat ...
Whilst this may be true I don't think we can be certain of that conclusion based on your one example. You are not comparing apples with apples. Yo...
@cathoderay Winter 23/24 was milder than 22/23. Previously you multiplied input energy by SCOP, whereas in fact it should be multiplied by COP. I...
Indeed. Several of the manufacturer installation guides I have read say that freeze protection must be fitted. Installers tend to cling to what the ...
Thanks. (I think you have probably provided the explanation for the apparently anomalous consumption (10MWh vs ~24MWh which would be expected for a 1...
I agree with the first sentiment, I was being provocative. Practically speaking one can download smart meter readings and degree days. These should...
@cathoderay Since you are convinced (and have sone evidence) that your house heat loss is 12kW, let's take that as read and see where it takes ...
I think people, including me, do this simulation exercise as a bit of a sense check and to ascertain how low temperature heating affects their comfort...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
Cloudy one done, might get the sunny one tomorrow or de...
By Watcher , 17 hours ago
-
RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 1 day ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 2 days ago
-
At the risk of going on: A slight side issue for a foru...
By Bart , 2 days ago
-
RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 2 days ago
-
RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 3 days ago
-
RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
By Batpred , 3 days ago
-
Readers here please note that Derril Water and many oth...
By Transparent , 3 days ago
-
RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
By Batpred , 3 days ago
-
RE: Heat Pump Training vs. Real-World Installation
Our instal was very much the opposite. White haired blo...
By Batpred , 3 days ago
-
RE: Flushing system, cleaning and inhibitor
While skim reading a manual for our Vaillant HW tank, I...
By Batpred , 3 days ago
-
RE: 'Chinese Diesel Heater' to heat the home .....
Old thread but I'm new to the forum so new to me. How...
By BlizzardGreen , 4 days ago
SPONSORS
