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 19, 2026
Sorry, me too suffering from overload, I may have mixed your system up with another on this thread. I've gone back over my recent posts and edited ou...
You don't have an arotherm (Vaillant is another make of heat pump), you have a Samsung, or that's what you told us. Different beast, same principles....
They aren't working together and the evohome will be clobbering your efficiency. Nope, waste of money. Either remove the evohome heads altogether ...
They are, unless to fit them would make the system less efficient/effective. Unfortunately installers love to fit them even when the latter applies. ...
For what it is worth, the way the Vaillant heat pump control works in pure wc mode (where actual room temperature is not part of the control loop) is ...
@rob_cirrus_energy has given some excellent advice albeit for a different system. The same principles will apply to you but the specifics will be dif...
Ok see my answer above re the readings. A heat pump is in terms of its function just like a boiler. It heats water which circulates in your radiato...
I suspect this is target dhw temperature and current dhw temp,erasure.
I am sorry to hear about your problems. I know nothing about ECO4 but do know something about heat pumps which should be a factor of 2-3 cheaper t...
Please thank @judith who posted this initially!
SPONSORS
Degrees of Separation
Latest Posts
-
At the risk of going on: A slight side issue for a foru...
By Bart , 1 hour ago
-
RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 2 hours ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I too can provide some insight. We have a Cosy ...
By AndrewJ , 2 hours ago
-
RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 17 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
@lizzie Thank you, very interesting and useful informat...
By Toodles , 20 hours ago
-
RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
By Batpred , 23 hours ago
-
Readers here please note that Derril Water and many oth...
By Transparent , 1 day ago
-
RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
By Batpred , 1 day ago
-
RE: Heat Pump Training vs. Real-World Installation
Our instal was very much the opposite. White haired blo...
By Batpred , 1 day ago
-
RE: Flushing system, cleaning and inhibitor
While skim reading a manual for our Vaillant HW tank, I...
By Batpred , 1 day 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 , 2 days ago
-
I'm not sure why you would want to make it more difficu...
By JamesPa , 2 days ago
-
RE: Wood burner with ASHP - direct air?
@lucia FWIW installed a woodburner some years ago. ...
By JamesPa , 2 days ago
SPONSORS
