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About Me


Found 10 results

  1. Hi Everyone, In my new build flat, which is 4 years old I have a Vent Axia Kinetic Sentinel Plus B model installed. In the first 2 years the machine was operating correctly, I usually replaced filters every 6 month, and I had a major service carried out by HRV Group in 2023 September, where they told me the machine is working correctly. During that service I mentioned to them that I hear an unusual sound from the machine, and it got louder. When the technician visited, he told me it's normal. A year almost passed and yesterday on the 6th of June I noticed the machine got loud like an airplane. I have created a video which you can find here: I contacted Vent Axia to ask about warranty, and if they are able to investigate and rectify the issue without any extra costs for me, but no answer yet. My questions are: Is this noise normal with a 4 year old unit? What is the warranty on these machines? What could be causing this excessive noise? Thanks for all the help!
  2. Hi - got my ecodan R32 installed in October and it's been purring away ever since quite nicely. This morning, in Edinburgh anyway, it was near on 0 degrees and there was a noticeably louder noise coming from he unit, as if the fans were spinning much faster etc. I gather it's normal for an ASHP to work harder, and therefore be noisier, when it's cold? When the manufacturer publishes its decibel rating, is it best case or worst case - i.e. on a lovely summers day when doing a DHW top up or at -5 degrees in winter? Thank you in advance!
  3. Hi, I have just powered up my newly installed MVHR system, a Vent Axia Sentinel Kinetic, 2 x 6 way manifolds and 50 metres of 90 mm semi rigid plastic ducting. It's a retrofit into the existing loft space. It seems to be working fine apart from the noise. Standing under the vents I can hear a gentle 'woosh' of the air coming out of the vents, but from even further away, I can hear what I'd call maybe a 'droning' noise, it's like there is an echoing in the ducting. Not sure how to describe it better. It's not massively loud, but loud enough to raise complaints from the family. As it's a cold loft, the Sentinel Kinetic has had a 25mm EPS foam box built around it, so it's sitting on a platform, with an EPS base. The same as the metal manifolds, these have 25mm EPS outer boxes too. The ducts are strapped to the top of the trusses. The whole lot has been covered with 400mm of new rockwall insulation. Any insight into where the noise is coming from and how to fix it are greatly appreciated.
  4. Could someone please help me identify this noise? After I bought a second floor new build flat from Bewley Homes UK in 2022, there has intermittently been a snapping/clapping sound. The noise happens all year round. We have done the basic tests i.e run taps etc. It has been really hard to pin point where the noise is coming from but I believe it’s from the ceiling or wall in the open plan kitchen/living room. The recordings below are over a 7 hour period at night.
  5. New to ashp world.Is it normal for the recirc. pump to run constantly even when the heating and hot water are off.The noise is driving me mad not to mention having a pump eating my leccy.
  6. Open plan kitchen. How could I reduce the noise of fridge freezer's compressor (while keeping the back of the fridge ventilated of course)? Ideas: A short stud wall section beside the fridge freezer? Sound-absorbent foam behind Any better ideas? (By the way, ignore the kitchen design. Its just a rough draft.)
  7. Sorry if this is repeating a common thread. We have recently purchased a new build detached house and noticing airborn noise between the upstairs and downstairs rooms. We also have a lot of joist movement noise, but the builders are coming back in a few weeks to remedy this by installing noggings. The ceiling / floor joists are engineered timber joists with chipboard above and 15mm regular plasterboard below. Nothing inbetween, just air. As they are going to be ripping up the upstairs floors, we have an opportunity to install some acoustic insulation. I am thinking just some acoustic slabs at 100mm and 60kg/m^3 (RS60 or RW3). My question is does anyone have any experience on doing this and how much effect it actually will make. I am nervous we do this at quite a bit of cost and lots of trouble and in the end the result is minimal. Is it worth the effort? I am surprised that the part E regs do not cover detached builds at all....surely they still require airborn noise regs. Thanks.
  8. We've opted (subject to planners agreement) to switch from a standing seam roof to a corrugated alternative very much like the attached image (Dualchas design) . We're surrounded by farms and it's very much the local style. I've started looking at material options and have come across a Marley Eternit fibre cement board profile solution. Claims of noise reduction, reduced condensation and increased lifespan sound good but what would be the downsides over traditional steel options and has anyone used similar? This might be relevant to @Visti who I think is planning something similar.
  9. Basic question but how do you muffle the noise water makes when it drips down the gutters and hits the angled plastic PVC bottom? What could I adhere to it to stop this keeping me awake at night?! Thanks!
  10. Following on from some discussion in my blog: we are experiencing some fan noise transmission through our radial ducting to individual room valves, only really noticeable on normal ventilation rates at night when the house is silent, but certainly noticeable during the day when the MVHR is on boost. Experience of other members suggest a silencer would greatly assist in reducing the transmission of any fan noise, and I'm pleased to say having contacted my supplier (BPC) they are going to send me a silencer. I'm also planning to build my own using some acoustic foam that I've purchased. I'll do a comparison test in due course to see which silencer works best. One of the things Gary from BPC suggested was that there may be an air imbalance in the MVHR unit, and I thought it would be helpful to explore how we all go about balancing our systems. I borrowed and airflow LCA301 meter (with hood) from my builder and used that to measure the air flow at each room terminal, adjusting each individual room terminal as required to meet the flow rates specified by BPC. I know some members have distribution boxes that allow the adjustment to be made by way of restrictor rings in the distribution box. I balanced the system and set fan speeds so that the supply and extract air flow rates were the same. The cumulative supply / extract rates were equal to each other (or at least as close as I could get them to be). However, thinking back to previous builds and advice, and one which was professionally commissioned, there was always a difference in the supply and extract air flow rates of up to 10%. Has anyone else done this? I'm not convinced this is the best approach as you end up over or under pressurizing the house.
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