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: Feb 24, 2026
The next challenge will be getting 60mCu of water warmed up! - I assume for the initial heating, take the weather compensation off, fix both flow temp...
@f1p Indeed - I am just waiting to see if I get sent a bill for removing the cascade, but intend to either ask for a refund, or a return of my propert...
The issue seems to be solved: I found that the plumbers had routed the flow return from ASHP1 into the flow return of ASHP2, hence the whole system wa...
@f1p Just checked again (with different glasses on!) and they are sliders, not rockers, and set correctly. Looks like separating the cascade will be...
I am pretty sure that on mine, they are set the other way - the ones that are supposed to be ON have the sticking up bit up at ON side, and are presse...
So, if the rocker is down at the ON side and up on the OFF side, it is ON? Yes I do have Home Assistant, but it is using the MELCloud integration to...
I looked at the dip switches on the FTC 7s today. On my units, they are tiny rocker switches, rather than slide up / down. Is the dip switch "on" when...
I believe there is a single sensor mid-tank - this is the label on the tank This is yesterday's daily graph from MELCloud
Are you saying "Plan B" is sound, i.e. separate the two, but just make sure the settings of both individual units match, or the cascade is sound? If...
@ashp-bobba If it is not possible in cascade to have 1 unit doing UFH & pool and one doing DHW + UFH / pool when not doing DHW, then plan B is to ...
@f1p The graphs do show there is about a 3 degree an hour loss of heat, and that is with very little hot water being drawn off - a morning wash, and a...
@f1p I am fighting one battle at a time here... hoping to get someone to say for definite if the SW 1-3 on the second pump is off, it should not then ...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 2 hours ago
-
Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 2 hours ago
-
RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 4 hours ago
-
RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 5 hours ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 1 day ago
-
RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 1 day ago
-
No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days ago
-
RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 2 days ago
-
RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
-
RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 2 days ago
-
RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
-
RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 4 days ago
-
@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago
SPONSORS
