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Last seen: Apr 28, 2026
@derek-m basically goes to 22mm after the valve. Been pretty busy lately and haven’t had a chance to check rad sizes and such yet.
@derek-m will have a look at that tomorrow. I do know they were all replaced with Purmo ones I believe as had column cast iron sort of ones before. I ...
@allyfish I can’t remember what the WC settings are believe I just turned it on as it was off. And set the flow to 45c if I remember correctly. Will g...
@derek-m took the actuators of and checked the valves manually and they are definitely closing. I originally thought they weren’t closing all the way ...
@allyfish @allyfish I manually operated the valve after I took the reading and the pipework past the valve become hot fairly quickly. So would presume...
Valves and outdoor unit:
@allyfish I am not sure on the calculations as they were never given to me. I have just dug out all the paperwork left with me after the install. I wi...
@derek-m Yes all the rads get hot. I have just done an hour long test calling for hot water. there has been no heat demand today, currently set at 18c...
Thanks for the replies guys. Derek-M, I did manage to get WC on and turn the system temp down to 45c as was set to 55c. Did that last year as it ke...
Hi all, I have had A ASHP for just over three years. Was so glad I stubbled upon this forum as seems to be a wealth of knowledge! Daniel
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Latest Posts
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 8 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 8 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 10 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 10 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 11 hours ago
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 11 hours ago
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 12 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 17 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 17 hours ago
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Although regulations may well vary from country to coun...
By Majordennisbloodnok , 17 hours ago
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RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 17 hours ago
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RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
@jamespa in some cases, failing the Turing test might b...
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RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
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RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
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