Last seen: Dec 1, 2023
@mikefl @mab, if it helps at all, here's today's data on my Grant 17kW model. The defrost cycles are depicted by the cliff edge drops in the flow temp...
@shapingstuff Here's the electric consumption Vs heat generation of my Grant 17kW unit - EmonCMS link. I used a emonTX with CT clamps to measure ...
I would say you are looking for a controller like pictured in @allyfish 's post here:/p> Or the controller to the right of the picture here:/p> ...
The warmup device is usually for the mat type electric underfloor heating, commonly found in bathrooms.
On most installations the Grant controller is just used to configure the system and external controls are fitted to demand heating and hot water. ...
It is more efficient in the long run as you want the flow temperature to be as low as possible while keeping the house warm, with the heat pump runnin...
Was this a zone on the EvoHome system or just had water flowing when one of the zones was calling for heat? If you can get the heat pump running...
@sirpatchuk1980 I had EvoHome in my last house, a great (if expensive!) setup that did work on my gas boiler. I would not use it on my heat pump tho...
@robl thank you. It's definitely the complete circuit (DHW out and around to the DHW return) - exasperated by the Mixergy technology with their pump o...
Sorry for the delay, notifications for this forum go to my spam folder. The installer I used suggested fitting a motorised valve, linked to the same...
@webcmg From the pictures on your first post it appears that the DHW outlet and secondary return inlet are piped straight up into your ceiling ...
@kk_777 don't worry, I hadn't heard about thermosiphoning either until I started looking in to why the tank heat loss was so great. As for the tank ...
- 21 Forums
- 1,962 Topics
- 42.6 K Posts
- 56 Online
- 2,277 Members
Join Us!
Heat Pump Dramas?
Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.
✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)
Latest Posts
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
All agreed. if you want to delete our exchange for cla...
By JamesPa , 10 minutes ago
-
@eliuccio Unfortunately, whilst I agree with a lot of...
By JamesPa , 55 minutes ago
-
RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@bami I think if the heat loss documentation matches a ...
By bontwoody , 1 hour ago
-
RE: What is the best strategy for operating a very oversized heat pump?
@jamespa I'm afraid that's over my head but if anyon...
By IRMartini , 2 hours ago
-
RE: Setback savings - fact or fiction?
And here in case any one wants it is the code I used in...
By cathodeRay , 2 hours ago
-
RE: Samsung Gen 7 R290 12kW is not behaving how I expected
Definitely its in the 20xx FSVs. Conversely it may be...
By JamesPa , 2 hours ago
-
RE: Towel rails. An unexpected final hurdle
We have both Normal Rad for heating the room and then a...
By IRMartini , 4 hours ago
-
RE: Heat Pump Sizing & Installation Costs
Perhaps useful to have installed date too? To get conte...
By Tim441 , 6 hours ago
-
RE: SolarPV tables / online calculator
I'd be interested what others find whilst using that we...
By Majordennisbloodnok , 8 hours ago
-
RE: F.788 Building circuit pump reports internal fault - Vaillant Arotherm
Guess I have to wait for engineer visit. I really hope ...
By jeegnesh , 20 hours ago
-
RE: Act now to defer the UK road tax increase on EVs
@majordennisbloodnok Damn right sir. my attempt at iron...
By Jancold , 23 hours ago
-
RE: ASHP and heating issues in new build house
That’s good gives you more capacity. It made me think, ...
By Terry1812 , 1 day ago
-
RE: Seewet manhole cover within r290 exclusion zone
Thanks! I asked Vaillant, and they say I should be fi...
By dbrb2 , 1 day ago
-
Looking for the Grant Aerona 3 setting to turn off completely at 20 OAT
I'm running my Aerona 3 on WC and the 'warm end of that...
By damonc , 1 day ago
-
RE: Do I just go with the lowest quote for my heat pump?
So after signing in Sept in two weeks the install may s...
By Jancold , 1 day ago
-
RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice
When you are renovating is always a good time, as it ma...
By JamesPa , 1 day ago
-
RE: Just one room not reaching desired temperature
Looks like this issue is now resolved. Aira installed a...
By ChandyKris , 1 day ago
-
There have been several people on the OpenEnergyMonitor...
By RobS , 2 days ago
-
RE: Say hello and introduce yourself
Good point @jamespa But that probably strengthens @ch...
By Transparent , 2 days ago
Latest Topics
-
Heat Pump Sizing & Installation Costs
By Mars 8 hours ago
-
Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 9 hours ago
-
SolarPV tables / online calculator
By MichelleC 16 hours ago
-
By Toodles 2 days ago