ASHP flow through pipes is noisy and preventing us from using at night......looking for help.
@dannymoss23 28mm pipe : thats good.
but I can see the issue. the pipe goes through a hole in breeze block thats only just bigger than the pipe . with nothing between it and the block. Is it the same where it goes through the external skin (brick I assume)?
the hole needs to be a LOT bigger than the pipe diameter then there should be thick insulation around the pipe filling the hole. insulation of exterior grade. the stuff on your cylinder is interior grade (which is fine for where it is). this(first link I found with a decent picture) indicates what it should be like.
as it stands the pipe can easily vibrate against the blockwork, thats your noise. Its also going to let cold air in.
the primary under the floor in your bedroom should also be lagged all the way to the cylinder with interior grade insulation.
My octopus signup link https://share.octopus.energy/ebony-deer-230
210m2 house, Samsung 16kw Gen6 ASHP Self installed: Single circulation loop , PWM modulating pump.
My public ASHP stats: https://heatpumpmonitor.org/system/view?id=45
11.9kWp of PV
41kWh of Battery storage (3x Powerwall 2)
2x BEVs
Posted by: @dannymoss23I have the measurements and the pictures of the flow pipes coming into the bedroom for context
these are next to the bed and going in and out of the exterior wall in the garage ceiling
Is it my eyes, or is one pipe of larger diameter than the other one? Also in the first photo the pipes look as though they could be touching each other.
Thanks Ian, I thought it was going to have something to do with that wall!!!
So in your opinion should I be getting back onto the installer and demanding that they sort out the wall and the internal lagging of those bigger pipes? There is a lot of pipe going from that exterior wall to the bathroom (which are on opposite sides of the house! - about 13 metres.....)
Yikes
This is the furthest bedroom by the bathroom where the pipes take a left turn to get to the bathroom which is out of the door and to the right.
These pipes have now been fastened and in some places felt laid down to stop the expansion knocking we were getting
@dannymoss23 for the run under the floor inside, the pipes need moving further apart so there is room for interior grade lagging. they may possibly need supporting and antivibration measures taking , but the insulation will help with damping this, and will also improve your HP's efficiency (you dont want these pipes heating the room they pass through).
the big fail is that the method they have used to get the primaries out through the wall of your house to reach the ASHP doesn't comply with any best practice. The best practice will be in all of the training and guideliness they've been given. It would fail an MCS inspection.
roughly whats needed:
- remove pipes.
- 2 very big holes with a core drill.
- exterior grade insulation (from an ASHP exterior grade insulation supplier) all the way through the big hole from outside to inside. joined with sealant to the external insulation (which I assume exists... photo?)
- pipe through centre of insulation.
- correct sealant around all holes and to join insulation lengths together.
watch youtube on "primary pro".
My octopus signup link https://share.octopus.energy/ebony-deer-230
210m2 house, Samsung 16kw Gen6 ASHP Self installed: Single circulation loop , PWM modulating pump.
My public ASHP stats: https://heatpumpmonitor.org/system/view?id=45
11.9kWp of PV
41kWh of Battery storage (3x Powerwall 2)
2x BEVs
Posted by: @iancalderbank@dannymoss23 for the run under the floor inside, the pipes need moving further apart so there is room for interior grade lagging. they may possibly need supporting and antivibration measures taking , but the insulation will help with damping this, and will also improve your HP's efficiency (you dont want these pipes heating the room they pass through).
I had them back to attend to the antivibration measures as we had quite a bit of knocking - which has now gone - the only thing left is this bloody flow noise which sounds like we live next door to a waterfall.
Really appreciate your input @iancalderbank - I'll be getting back to them to sort my exterior wall. I'll get out to the garage ceiling in a bit and try to get a picture of the pipes after they go through the wall.
@dannymoss23 no worries. copper pipe will transmit vibration to any hard surface its in contact with, particularly one carrying a high flow rate such as an ASHP primary.
But in this case specifically for an ASHP primary it MUST be properly insulated through he wall at the exit of the house, and taking care of that will , to a very high degree of confidence , also take care of the noise you're getting.
Do try to also get the primary run under your bedroom insulated if possible. they'll have been used to not doing so because in boiler installs they'd have not bothered. But it will make a small improvement for a trivial outlay (internal insulation is cheap). and avoid overheating that room.
My octopus signup link https://share.octopus.energy/ebony-deer-230
210m2 house, Samsung 16kw Gen6 ASHP Self installed: Single circulation loop , PWM modulating pump.
My public ASHP stats: https://heatpumpmonitor.org/system/view?id=45
11.9kWp of PV
41kWh of Battery storage (3x Powerwall 2)
2x BEVs
@iancalderbank Will do! Thanks again, I'll report back when I have the outside pictures but also the potential resolution!
@iancalderbank I’ve managed to get into the garage ceiling. Looks like it’s insulated out there thankfully
@dannymoss23 yes although that is interior grade insulation. It needs to be exterior grade thickness in any unheated space, so the easiest it just to use exterior grade. those sections will need to come off anyway in order to be done through the wall properly as per previous. Joints should be sealed not gaffer taped on an external section.
I definitely recommend watching the primary pro install videos, if you learn how it should be done, you'll have a better idea of what you should be getting when they come to remediate.
what does it look like on the last leg from the garage to the ashp itself?
My octopus signup link https://share.octopus.energy/ebony-deer-230
210m2 house, Samsung 16kw Gen6 ASHP Self installed: Single circulation loop , PWM modulating pump.
My public ASHP stats: https://heatpumpmonitor.org/system/view?id=45
11.9kWp of PV
41kWh of Battery storage (3x Powerwall 2)
2x BEVs
@iancalderbank Missed the daylight on this one, I'll post a picture in the morning - looks lagged but there is a gap from memory.
- 25 Forums
- 1,439 Topics
- 30.2 K Posts
- 28 Online
- 1,224 Members
Join Us!
Latest Posts
-
RE: Incorrect Billing of Customers with a Smart Meter
It seems someone else stumbled upon the same issue earl...
By KoRWraith , 7 hours ago
-
Share Your Experiences with Heat Pump Manufacturer Support
Have you ever reached out to your air source heat pump ...
By Mars , 8 hours ago
-
RE: Are Octopuses Slowing Consumer Adoption of Heat Pumps?
@ivanopinion Octopus have told me they will have a Cosy...
By Davesoa , 14 hours ago
-
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?
@ant87 thanks for that.
By David999 , 15 hours ago
-
RE: No-code, plug-and-play monitoring for your heat pump
But if you compare what was predicted with what happene...
By Majordennisbloodnok , 15 hours ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
I might change my mind again, but I'm currently unlikel...
By IvanOpinion , 20 hours ago
-
RE: Samsung ASHP scheduling help
@elgreco69 worth reading the GitHub here as that will a...
By morh , 1 day ago
-
RE: ASHP sizing - value of Heat Transfer Coefficient
@toodles Thanks for the explanation I get it now as I h...
By Jancold , 1 day ago
-
RE: Questions about yearly heat pump maintenance
For the installer, I believe servicing and maintenance ...
By Majordennisbloodnok , 1 day ago
-
RE: Rate the quality of your heat pump design and installation
@retrorich It is very worrying that any of this should ...
By Toodles , 2 days ago
-
RE: Spacing for roof fixing bolts ?
There is another consideration...but alas this doesn't ...
By Transparent , 2 days ago
-
RE: Air source heat pumps and noise
Yes, but when they go wrong things get really sticky. D...
By Majordennisbloodnok , 2 days ago
-
RE: Noise problems with newly installed Samsung 8kW ASHP
Hi, Bit of an update. I bought a decibel meter and moni...
By Lokisam , 2 days ago
-
RE: Are You Getting the Most Out of Your Renewable Energy?
As I mentioned, there are going to be some follow-up ar...
By Majordennisbloodnok , 2 days ago
-
RE: Tell us about your Solar (PV) setup
Now, I know that this may be a little simplistic and pe...
By Toodles , 2 days ago
-
-
RE: Save the Energy Save the World using Daikin Altherma 3 operation mode and schedules settings.
Hello Mevl, I won't be able to answer all your question...
By HCas , 3 days ago
-
I have been watching, with interest, the rebuild and re...
By iantelescope , 3 days ago
-
RE: Making best use of Agile with a battery and ASHP
On the subject of automating battery charging schedules...
By jamesw , 3 days ago
-
Safety update; RCBOs supplying inverters or storage batteries
BEAMA have issued a safety update (March 2024) regardin...
By Transparent , 4 days ago
Heat Pump Humour
Latest Topics
-
Share Your Experiences with Heat Pump Manufacturer Support
By Mars 8 hours ago
-
Spacing for roof fixing bolts ?
By heat-pump-newbie 4 days ago
-
ASHP sizing - value of Heat Transfer Coefficient
By jamesw 5 days ago
-
Incorrect Billing of Customers with a Smart Meter
By KoRWraith 1 week ago
-
Home energy storage & battery register
By Mars 1 week ago
-
Meter Readings - What are theses meters telling me?
By Potatoman 1 week ago
-
Have Octopus Energy discovered a way to Narnia?
By Davesoa 1 week ago