Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
MCS Sound standards
Hi, does anyone know much about the MCS sound standards. Specifically re the determination of “directivity”?
when looking at which Q value should be used is there a minimum measurement for a reflective surface. For example, say there is a wall which is around hip height would that count as a reflective surface?
thanks
When I was seeking planning permission to erect (domestic) wind-turbines, there was a question about noise which required an answer. The planning guidelines made it clear that they expected the answer to be provided using calculations from the turbine manufacturer. The reference standard in that case is called ETSU-97-R... which is no longer regarded as suitable for a number of reasons which you can explore online.
Regarding ASHPs, the origin of the sound is also a device supplied by an approved manufacturer. It seems to me that your first recourse is to ask if they are able to provide you with the required information. Why can't you simply give them the distances to the nearby solid surfaces and state their composition?
Or does that seem too simplistic?
Save energy... recycle electrons!
- 26 Forums
- 2,675 Topics
- 62.6 K Posts
- 306 Online
- 7,090 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
I dont think it is correct, given that @ashp-bobba desc...
By JamesPa , 45 seconds ago
-
RE: Help me keep the faith with my air source heat pump installation
I didn't know about those, they look like good pieces o...
By JamesPa , 1 hour ago
-
@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 2 hours ago
-
RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 2 hours ago
-
My first question is why bother with the auto balancin...
By JamesPa , 3 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 3 hours ago
-
RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 3 hours ago
-
I share the same experience as @majordennisbloodnok hav...
By Old_Scientist , 4 hours ago
-
RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 7 hours ago
-
RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@jamespa many thanks, definitely i will give the pre...
By ragtime27 , 18 hours ago
-
RE: Heat pump installation quotations
@jamespa I noticed that in the Heat Geek design consult...
By Batpred , 19 hours ago
-
RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 1 day ago
-
RE: Daikin ESPAltherma and Home Assistant installation
@bash, something we haven't touched on already relates ...
By Majordennisbloodnok , 1 day ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Vaillant arotherm plus 12kW. Installed March 2025. Ex...
By Harebell , 2 days ago





