Last seen: May 14, 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....
Latest Posts
-
RE: Mitsubishi Ecodan Fails to Heat Water despite temperature drop
Mine (Vaillant) recently did something very similar, ba...
By JamesPa , 1 hour ago
-
RE: Renewables & Heat Pumps in the News
Yes I realise I'm picking this up a week late...... but...
By Transparent , 4 hours ago
-
@editor Mars if you have any recommendations for down s...
By abam48 , 16 hours ago
-
RE: Surface mount or bury primaries for heat pump installation?
@tomasmcguinness HI, The rules is a best practise, the ...
By ASHP-BOBBA , 20 hours ago
-
RE: Vaillant AroTherm Plus 7kW
@scalextrix if your under unit heater is like our Myson...
By Judith , 21 hours ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@cathoderay how did you get a script to run for that- d...
By benson , 23 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
@ashp-bobba thank you, and equally so, thank you for ta...
By Mars , 2 days ago
-
@judith good to know… I’ll continue to feed Wattson, an...
By Mars , 3 days ago
-
RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
@editor great article re accreditation. I note ISO/IEC ...
By Bart , 3 days ago
-
RE: Who's your electricity provider and what's your tariff?
I don't (yet), but my PW3 is due to be installed shortl...
By Old_Scientist , 4 days ago
-
RE: MCS and NAPIT complaints process
@chrislay, is your heat pump complaint still unresolved...
By Mars , 4 days ago
-
RE: ASHP Install from hell - help please
@saf1973 I’ve been going through old cases on the forum...
By Mars , 4 days ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@aaron There's the rub, the database does not list my ...
By AF1 , 5 days ago
-
RE: Commencing on an ASHP Installation Process
Yes, it's "doable" if everything goes to plan, they arr...
By Old_Scientist , 6 days ago
-
RE: How not to install a heat pump
You are right. Thinking on this has evolved over the p...
By JamesPa , 7 days ago
-
RE: DHW SET UP with Samsung gen 5
Thats good news indeed, you are very likely almost ther...
By JamesPa , 7 days ago
