Last seen: Jan 9, 2026
@mike-patrick If you’ve just invested circa 300k in a renovation, it’s very likely that detailed drawings, specifications and construction build-ups a...
There is a real disconnect between how performance is captured for RHI and what ends up being used for EPCs via RDSAP.The SPF of 4.1 you got probabl...
@af1 if all of those features (GSHP, MVHR, double glazing, full loft insulation, and 100mm phenolic EWI) weren’t in place at the time of the last EPC,...
@af1 prices will vary depending on size and complexity of the building. Starting at around £300
@editor very good!! Im surprised he got the assessor into the property.. This is exactly why we don’t use RdSAP—it’s designed for speed and sim...
RdSAP 10 represents a significant shift in how EPCs are calculated, particularly for properties with heat pumps. The revised methodology places greate...
@transparent keeps tall people warm
@transparent 😀 😀 here is a few more to keep you happy
@jamespa we will design the emitters/radiators to suit the same flow temperature. If this can't be achieved with radiators or they take up too much sp...
Latest Posts
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RE: Considering MLCP (Multi-Layer Composite Pipe) for ASHP
If, by that, you imply that @jamespa is not a plumber o...
By Majordennisbloodnok , 6 minutes ago
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RE: Recommended home battery inverters + regulatory matters - help requested
@jamespa yes, useful to hear how the earthing is provid...
By Batpred , 26 minutes ago
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RE: Ideal HP290 14kW ASHP - how to optimise
The chances are that an Ideal Heat Pump owner will be a...
By Toodles , 33 minutes ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
A big thank you to @jamespa for all his efforts online ...
By trebor12345 , 2 hours ago
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RE: GSHP WOES! Midland based engineer recommendations?
@editor It is indeed for servicing. My current service ...
By Morgan , 2 hours ago
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RE: Sunsynk Whole House Backup Issue
Hi @lostandconfused , I agree that topic/thread is the ...
By Batpred , 3 hours ago
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RE: Speedcomfort radiator fans
In case it helps Andrew Kuhne on openenergy monitor has...
By JamesPa , 3 hours ago
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RE: Post-Traumatic Heat Pump Stress Disorder
@jamespa, we have got this topic, which all the mods ca...
By Mars , 6 hours ago
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Things have gone quiet with you @drei. Any updates?
By Mars , 6 hours ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Thanks @tim441. Interesting timing, as Passiv are a cur...
By Mars , 8 hours ago
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Hi everyone, I have a two year old Marlec Solar iBoos...
By Tallmarc , 11 hours ago
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RE: Please help with the settings ecodan
Are you trying to address any particular performance is...
By Sheriff Fatman , 16 hours ago
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RE: Solis inverters S6-EH1P: pros and cons and battery options
🤣 Well, I never managed to get the HA solis "...
By Batpred , 18 hours ago
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RE: Experience - New Build / Complete New Heating System
Your sap clculations should give you a heat loss figure...
By JohnnyB , 18 hours ago
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RE: Vaillant aroTherm not heating with many faults
@editor hmmm, our engineers Rae, Craig, Naz, Rob and Ry...
By ASHP-BOBBA , 19 hours ago
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RE: I’m glad the cold spell is over!
@editor as a reply for this date the 6th of Jan in o...
By Nursethescreens , 20 hours ago
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RE: Heat loss based on gas usage
@jamespa Thanks. The numbers posted above were jus...
By Bash , 20 hours ago
