Last seen: May 24, 2025
Hi @john-castle , I’m new here too. I also have a Daikin. It’s the altherma 3 8kw. My system is a little different from yours because I have a mixergy...
@heacol , your footer says you are Director at Heacol & Head of Domestic Heat Pump Design Net Zero British Gas. I don’t know if you can help, chee...
Hi @dreg1 , I’m fairly new to this too. You’ll probably get some really helpful replies. A couple of questions, you referred to a primary circuit, whi...
@jamespa The third priority was a type, it was meant to be flow speed. Which was the whole point I was making. Also I notice you refer to radiators ca...
@jamespa Thanks for that. I think from what you have said that we seem to disagree, if we disagree at all, about the way the system responds in relati...
@toodles , yes you’re right, there are a lot of variables and all of the figures can be plus or minus. I guess both of your heat loss figures would ha...
@jamespa Again, I’m going to have to read this carefully to take it on board. But I absolutely agree about the piping and the radiators. As I said in ...
@jamespa I think I have explained what I have observed. The heat pump hits the target LWT first, then it hits the RWT and finally it hits the flow rat...
@jamespa , I’m having to think about this very carefully, so I need to tackle it in chunks. So this one first. I’m assuming there is a steady state un...
Also, if Octopus installed yours, and assuming you are an octopus energy customer, you can get the very affordable maintenance package they are offeri...
@toodles , Thanks and the 6.5kw is based on achieving what 24c from -2c , for example?
@toodles Thanks. That shows pretty much the same picture, with the heat pump going off and on, but maintaining a pretty steady temperature. What is yo...
- 22 Forums
- 2,089 Topics
- 45.9 K Posts
- 60 Online
- 3,375 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@aaron There's the rub, the database does not list my ...
By AF1 , 34 minutes ago
-
RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
It seems I have either been very unlucky with ECO4. N...
By Dwynwen , 2 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
@editor excellent news, congratulations and well deserv...
By ASHP-BOBBA , 2 hours ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@majordennisbloodnok Thanks for above. I have given it ...
By benson , 3 hours ago
-
RE: Who's your electricity provider and what's your tariff?
I’d be interested to know if anyone uses the NetZero ap...
By Toodles , 5 hours ago
-
RE: Vaillant AroTherm Plus 7kW
Depends on the flow temperature; the Czech data sheet i...
By JamesPa , 8 hours ago
-
RE: Renewables & Heat Pumps in the News
Thanks @lucia I look forward to some technical facts as...
By Judith , 8 hours ago
-
RE: Commencing on an ASHP Installation Process
Yes, it's "doable" if everything goes to plan, they arr...
By Old_Scientist , 1 day ago
-
RE: How not to install a heat pump
You are right. Thinking on this has evolved over the p...
By JamesPa , 2 days ago
-
@ashp-bobba ‘Wattson, how many grammes of Co2 are you r...
By Toodles , 2 days ago
-
RE: DHW SET UP with Samsung gen 5
Thats good news indeed, you are very likely almost ther...
By JamesPa , 2 days ago
-
RE: Plate heat exchanger considerations
As far as I can tell my vented system would have a peak...
By Scalextrix , 2 days ago
-
RE: Air Changes per Hour - ACH and the MCS requirement
There have been a few discussions dotted around (e.g. I...
By Declan90 , 2 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Having made some enquiries locally I have found a compa...
By Morgan , 2 days ago
-
RE: I don't need any heating in the summer. How do I turn my Samsung heat pump off?
Thats great Someone else is struggling with this in a...
By JamesPa , 2 days ago
-
@bart Best of luck moving forward, I look forward to he...
By ASHP-BOBBA , 4 days ago