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: Jan 12, 2026
I’ve noticed their graphics are a bit odd in places. I would ignore
-3 overnight. Mine appears to defrost every 45 mins
Currently 2° here. I’ll try and get some defrost numbers to compare
That's great news! I hope it works out well
@jamespa Apologies I did know that but I seem to have replied to the wrong post
@jamespa I’ve re read through the instructions a I can’t see anything in the DIP switch settings relating to Thermo off or hysteresis. My system doesn...
@jamespa Why does he need any hysteresis? Just set the heat pump to 20 and it will go as low as it can. I’d have to check but I think mine will get do...
@jamespa Yes it cycles a lot. In fact I smile when it’s -3 outside knowing that my heat pump is working efficiently - a couple of days a year LOL. I d...
@jamespa I’d need to read back through the manual but I don’t use the 4 degree Thermo off. If I’m honest I don’t even remember what that is. I doubt i...
My issue is an oversize 11kW heat pump and a poorly designed UFH. My house gets too hot made worse by solar gain from large south facing windows My ...
May not be relevant but my Hitachi system was a ‘package’ supplied by Freedom Heat Pumps. This included a buffer, several mixing valves and Heatmiser ...
- 27 Forums
- 2,746 Topics
- 64.5 K Posts
- 1,081 Online
- 7,149 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
Have you considered keeping your FF boiler and suppleme...
By Old_Scientist , 2 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@toodles I invested on Miele a pair of frodge frozor wh...
By AgentGeorge , 4 hours ago
-
RE: Flushing system, cleaning and inhibitor
Flush and fill all complete. Octopus kindly gave us a...
By Old_Scientist , 4 hours ago
-
RE: Wood burner with ASHP - direct air?
For what it's worth I installed a wood burner in this o...
By BlizzardGreen , 5 hours ago
-
@editor Thanks for your response and recommendations. ...
By DavidB , 12 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 1 day ago
-
RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
By Papahuhu , 4 days ago
-
RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 4 days ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s Look forward to making contact soon! Regards, To...
By Toodles , 4 days ago
-
I don't notice mine defrosting, and most of the time Im...
By JamesPa , 5 days ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
By Majordennisbloodnok , 6 days ago



