Last seen: Sep 21, 2025
@derek-m Aircon units have no special rules, so either they are an ashp used solely for heating in which case pd may apply, or they are like any other...
Useful data! Its interesting that it (apparently) takes 3 hours for the RWT/LWT to fall to room temp. Do you think this is real and if so does the p...
The PD rules for oil/gas flues specifically state flues, and a heat pump is capable of materially affecting the external appearance, so I suppose it w...
I am personally far from convinced that your EHO has a case, and the fact that they prefer to rely on planning to do something rather than actually ta...
The short answer is no, at least if by inside you mean inside the dwelling, unless it materially affects the exterior appearance. Section 55 of tcpa...
I'm never sure why people always quote 42dB(A). This figure includes an assumed 40dB(A) background. The heat pump itself must register 37dB(A) or l...
@bontwoody I can't be certain you are reading them correctly but my reading is the same as yours and I ask the same question. Perhaps it's Daikin's ...
@ericdo I have recently become aware of the noise from my neighbours gas flue, opposite our master bedroom. Its low level, but just audible when it...
I believe that the Daikin HT units do all require an indoor unit. I cant recall exactly what it has in it but its more than just a volumiser. And a ...
I can respond to this straightaway as I played around it when I did my WC simulation model (a very focussed model designed to test that one thing only...
@josephiah For what its worth modelling done completely independently by @derek-m and me, and using completely different approaches, tends to suggest ...
@derek-m Good work! I will try to take a look over the next few days. Im presuming its a linear WC curve defined by the figures in K5/6. If that's ...
Latest Posts
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RE: Repiping and Reconfiguring our Heat Pump System Including Removing the Buffer Tank
ok my setup is pretty simple: 7.35kw cibse heat loss ...
By AdamK , 2 hours ago
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RE: How to choose Towel Rails for an ASHP
In one en-suite bathroom we have a 180cm high towel rai...
By Judith , 3 hours ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
This is actually based on the same chipset as the Svena...
By Grantmethestrength , 3 hours ago
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RE: Powerwall 3 or Myenergi or something else?
@adamk what you need is enough battery size to cover 3 ...
By Judith , 9 hours ago
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RE: Say hello and introduce yourself
@jarlatheoin do put the MVHR in early it’s not an easy ...
By Judith , 9 hours ago
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RE: How to Zone with a Single Room with UFH
We have exactly what you describe, one utility room wit...
By Judith , 10 hours ago
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RE: Who's your electricity provider and what's your tariff?
@agentgeorge Come the Ist of October, the Cosy cheapest...
By Toodles , 11 hours ago
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RE: Boxt Heat Pump Installation Experience
@ashfp Mine does have a buffer tank. That was my experi...
By Andrew J H , 22 hours ago
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RE: Which temperature sensor for a Steibel buffer and Ecodan?
@ashp-bobba might be able to help as an Ecodan expert.
By Mars , 2 days ago
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RE: Help me keep the faith with my air source heat pump installation
I'm sure you are right, I was just trying to understand...
By JamesPa , 2 days ago
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RE: Preparing for 2nd winter in new build house.
Yuch! So that's basically just an on/off control. I...
By Transparent , 2 days ago
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Good day everyone. I'm new here and have a few question...
By Edin67 , 3 days ago
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RE: MCS certificate SCOP vs real-world performance
That may be contributing to lower than expected SCOP. ...
By JamesPa , 3 days ago
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RE: Mitsu PAR-WT60R Wireless Controller - options
How it does it's job is something of a mystery although...
By Abernyte , 3 days ago
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@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 5 days ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
Unfortunately I'm not that well connected 😂 ...
By Scalextrix , 5 days ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
It is interesting to see what our new Grant Aerona 290 ...
By GrahamF , 6 days ago
