
Last seen: Aug 19, 2025
The standard advice is to only vary settings by a maximum of 2C throughout the day e.g. 20C when you're at home, 18C overnight, and 19C during daytime...
I have a Grant, and the DHW timer sounds similar to yours (they are less than user-friendly), but you can check what the HP is trying to do by looking...
It's being varied by the controller's WC - see below where I've just shown the 'Target LWT' vs OAT (and compressor freq) for that same time period; th...
I suspect that different heat pumps employ different strategies to control their output, as I do see a spike on my Grant (most times) when it starts u...
Hi, My Grant Aerona was installed under the ECO4 scheme by Eco Providers Ltd (assume they are the same - in Lancashire), and they did an 'okay' job ...
Can you see the make/model of the programmer used to control the HW? Or can you upload a picture of it? I have a Timeguard 7-day 1 channel for my HW ...
-deleted-
That's quite an installation choice for the primary user controller. They didn't bother with any pipe insulation either I see. "When we say 'do...
I didn't think the HP would work at all without the controller working. Maybe it has some default cycles that enable it to work to some extent? The ma...
Regarding hardware requirements, I'm using a Raspberry Pi with 2GB or RAM and a 64GB SD card (Pi's are becoming available again after recent supply is...
@ggw This is a requirement of the Grant pump - Section 9.13 of the Installation Manual: "A flow regulator is supplied with the heat pump. This must be...
I have a Grant Aerona, with EPH room thermostats. That is what is on your image #3, and the receiver is top left on the DHW cylinder in your image #2....
- 26 Forums
- 2,136 Topics
- 46.8 K Posts
- 28 Online
- 5,662 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Powerwall 3 or Myenergi or something else?
I have a very similar set up in almost all respects, ex...
By JamesPa , 1 hour ago
-
RE: Does anyone have experience of a smart water meter?
Thanks, @technogeek. So far as I can make out, whilst...
By Majordennisbloodnok , 15 hours ago
-
RE: Mitsubishi PAR-WT60R-E Wireless Controller installation
@morgan They have been paired once but it was thought b...
By DavidAlgarve , 17 hours ago
-
RE: Isolating the system for a planned power cut
A great many ground-mounted local substation transforme...
By Transparent , 17 hours ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Having bit the bullet and paid £250 for a service, our ...
By Old_Scientist , 2 days ago
-
@bontwoody me too. I've contacted Heat Geek today, and ...
By Mars , 2 days ago
-
New heat pump heating system underperforming in Italy... Advice needed!
hi all, first post! I've just renovated a house in sout...
By robinlawrie , 2 days ago
-
RE: Anyone still weathering it out with Agile?
I went to Agile when I had solar installed July last ye...
By NJT , 3 days ago
-
RE: Mitsu Wireless Controller and MelCloud
Well it has now become obvious that the installation of...
By DavidAlgarve , 3 days ago
-
RE: Say hello and introduce yourself
Whilst you're busy installing services (pipes and wires...
By Transparent , 4 days ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@editor I know it was formally announced at Ish the oth...
By PatrickVito , 5 days ago
-
@moman0311 welcome to the forums. I've received your em...
By Mars , 5 days ago
-
RE: Thermostat for Ideal Logic Air with 3 zone support
No harm at all in plumbing it as 3 zones, I would have ...
By JamesPa , 6 days ago
-
RE: ASHP heat output monitoring
@carlo I see there is a discussion in Facebook user gro...
By Tim441 , 6 days ago
-
RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
MCS have set a potential trap in the new version of MCS...
By JamesPa , 7 days ago
-
RE: Who has a V2G EV installation
General comment on battery care... I guess if ev is on ...
By Tim441 , 1 week ago
-
@old_scientist like for like comparisons are almost imp...
By Tim441 , 1 week ago
-
RE: Who's your electricity provider and what's your tariff?
@old_scientist There is an option in the Tesla app that...
By Toodles , 1 week ago
-
RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
@old_scientist me too. Just installed my new heat pump ...
By Eliuccio , 1 week ago
-
RE: Is your heat pump insured?
Yup just spoke to Privilege to inform them of my impend...
By Scalextrix , 1 week ago