Useful & Informative as always ... 6min45 " provided this below 42 db " ..... So basically 41 db after rounding up , But not 42db.. Or is it" 42db or below"?.
What about "residential visual amenity"? Permitted development has the line: "Sited, so far as is practicable, to minimise its effect on the external appearance of the building and its effect on the amenity of the area." I've heard that if a neighbour can see the heat pump from any of their windows then this might be unacceptable, and you have to put a cover over it/fence to obscure it. Same if it's visible from the road/public footpath.
I am considering installing a heat pump but concerned about noise levels as I live in a row of terraced houses in a very quiet rural location that is also a conservation area. It appears the background noise level of 40db is used as a standard noise level whether a heat pump is located in a house on the North Circular in London or a quiet rural area. This will not give an accurate noise level calculation and potentially lead to a lot of problems with neighbours.
We need to "heat pump simulator" to put in the garden & have a listen, & see it neighbours can hear it. Although much of the time it will be a low power , defrost cycles & water heating will be at full power. & will tend to switch during the night too.
Where exactly is this requirement in the MCS specification? Please can you point to it. I can't find another reference to it anywhere online. Yet it seems to make mounting a heat pump on the back of our terrace house impossible? What distance is typically needed when there are no barriers?
Look up MCS020 and you'll find the PDF. For a pump with 56dB A-weighted sound power level, two reflective surfaces (on the floor, against a wall) and no barriers, you'd need to be at least 5m away from the assessment position, which is 1m away, perperndicular to the centre of the nearest window of the nearest habitable room.
Re NOISE: 1) Our new ASHP has a 61 DB rating although when I monitor it, it can vary between 41 DB - 93 DB (which is a lot louder than the 48.8 DB that the company told us the ASHP would run at before we agreed to have it installed). This is a cul de sac & a very quiet area, so it has already upset our neighbour (the ASHP is just 42cm away from his fence & just 60cm away from his house wall (this is his bathroom) - were they allowed to install it that close?). Is there a way to make it run quieter or reduce the noise impact? 2) Secondly, whenever the new water pump (an Onyx RS25/6G-130) for the radiators come on, it creates a really disturbing high tone that seems to reverberate through the whole house. It is inside a cupboard in the centre of our small house, next to the 50L buffer tank that they installed. I am not sure if its the pump itself or a vibration that is being transferred through the pipes somehow. It is an awful noise that is uncomfortable to be around. We definitely cannot leave the ASHP on at night because it disturbs our sleep. Any suggestions as to what we can do? Is a buffer tank & pump even necessary for an ASHP system? Thanks for your help. 🙂
When I read the PD rules on heat pumps, it doesn't have anything like this in there. Just says has to be 1m from the boundary (among other things, another example is not used for cooling), otherwise you need planning permission. Is this some further guidance? (I'd note the unit here looks to be within 1m from the fence which I assume is the boundary and would therefore not be PD).
My Grant-heat pump is very quite got to give them that but still using average 30kWh since November it will be getting switched off can’t afford to run it and eat,and it’s going up 50% Doomed
@@matthewmcmullan9669 I have took 10kWh off the house is 125 square meters foot plan D ecp running it at 19° C 4 bedroom heating is off upstairs 3 rooms on downstairs running on thermostat.the boys that installed it set it up it is my second one.To get someone out you are looking £60 at least who’s to say they know more than the ones that set it up
@@Allegedly2right Get a @heatgeek to have a look. Zoning like you are doing (turning off upstairs) is likely increasing the cost running. The install can probably be improved to make it run more efficiently and cheaper too.
@@patrickwheeler2646 As far as I understand, it can be visible from the highway if above ground level if it's not mounted on the elevation that fronts (faces) the highway. Side and rear elevations that don't front highways are OK.
