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: Mar 3, 2025
Thats interesting about the Honeywell valves. Our flow rate is below what it should be due to them using 28mm plastic instead of 35mm copper so we’re ...
Unfortunately at work we had Husky heat pumps installed (x3) which were awful. We’d often come in on a Monday morning and it would have thrown a fault...
@editor no kept the buffer
Thanks Derek. Yes I’d been working by locking them down and gradually opening up until they were roughly equally warm but I’ll try the other way aroun...
Agreed I definitely don’t think ASHP are “set and forget”, there’s a whole spectrum of issues that don’t get flagged by errors. I’m no engineer but...
Ours used to be like that until we de-zoned everything. Much better now
Yesterdays figures in now 44.5kW used 150kW delivered COP 3.4
@alec-morrow I don’t know exactly what pipework we have in all areas. I do know for example we have 2x 600x1599 rads in our lounge and 2 600x600 rads ...
We don’t have a LLH but we have a large buffer tank. So I presume I’d the flow around the house to the rads etc isn’t enough the heat pump will still ...
I took some measurements today. Clearly can see the rads and UFH aren’t losing 5c so makes sense why the main ASHP delta isn’t 5c I’m finding it...
Annoyingly I can’t view current day usage. But previous days have been 40-50kWh when it’s about 5c outside in the day. forcast -4c later this week ...
It’s 2c here and foggy. So worst weather for ASHP Flow temp is 42c. No defrost in last 24 hours and house is nice and warm. will see what the...
- 27 Forums
- 2,750 Topics
- 64.7 K Posts
- 1,426 Online
- 7,157 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Who's your electricity provider and what's your tariff?
Looks like not much change in electricity prices in the...
By ChandyKris , 1 hour ago
-
RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 2 hours ago
-
RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 2 hours ago
-
RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 3 hours ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
I think this calculation goes the other way. 3.54kW ga...
By JamesPa , 3 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 19 hours ago
-
@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 19 hours ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
-
RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
-
RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
-
@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
-
RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago



