
Last seen: Jul 23, 2025
Towards the evening the rapidly dropping outside temperature appears to make the system react and over shoot the target temperature by one degree.
To be sent Later
Out of sequence
Hi… Sorry I was out last night and missed your post. Thanks for confirming you have a rad output of 12000 watts. My calculation method appears to w...
Thanks for your reply... it’s a good sign you’re getting a COP of 4 and operating an open loop system. So my first sentence asked what is the rated o...
Whats the dt50 value of all your radiators? Also, when you observed the cycling how much of your rad system where closed eg. Thermostatic controlled? ...
@walkers-heatpump agree. From a practical point of view your comments make sense…. I guess the key is to check the outside pipes are fully insulated r...
Thanks Derek. Lots of variables to consider. And another reason to try to get the right size heat pump and right size emitter set. Is it also time to ...
Hi Ian, I think you’re mistaking me for the OP...😉 But you’re right the tables produced seem to suit boiler installations rather than the lower fl...
Hi @Linz We have anti freeze valves on our pipes outside. These are usually factory set to bleed at 3degC. This also means we don’t have glycol in o...
Correction : LWT40 should read DT17.5 eg: LWT40 = DT17.5 : 17kw X 0.255 = 4.3KWh
- 26 Forums
- 2,136 Topics
- 46.8 K Posts
- 49 Online
- 5,662 Members
Join Us!
Podcast Picks
Latest Posts
-
@ashp-bobba Thank you, it is unfortunate, I have engage...
By DREI , 3 minutes ago
-
RE: Does anyone have experience of a smart water meter?
Just to give a sense of scale, I've used the CCW water ...
By Majordennisbloodnok , 57 minutes ago
-
RE: Ecodan & MelCloud scheduling
I think the Melcloud timer disclaimer window says it al...
By Majordennisbloodnok , 1 hour ago
-
-
RE: Powerwall 3 or Myenergi or something else?
We have a Tesla Powerwall 3, recently installed, so I m...
By Old_Scientist , 22 hours ago
-
RE: Mitsubishi PAR-WT60R-E Wireless Controller installation
@morgan They have been paired once but it was thought b...
By DavidAlgarve , 2 days ago
-
RE: Isolating the system for a planned power cut
A great many ground-mounted local substation transforme...
By Transparent , 2 days 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 , 3 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 , 3 days ago
-
RE: Anyone still weathering it out with Agile?
I went to Agile when I had solar installed July last ye...
By NJT , 4 days ago
-
RE: Mitsu Wireless Controller and MelCloud
Well it has now become obvious that the installation of...
By DavidAlgarve , 4 days ago
-
RE: Say hello and introduce yourself
Whilst you're busy installing services (pipes and wires...
By Transparent , 5 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 , 6 days ago
-
@moman0311 welcome to the forums. I've received your em...
By Mars , 6 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 , 7 days ago
-
RE: ASHP heat output monitoring
@carlo I see there is a discussion in Facebook user gro...
By Tim441 , 1 week 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 , 1 week 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