ASHP flow through pipes is noisy and preventing us from using at night......looking for help. - Air Source Heat Pumps (ASHPs)

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

DannyMoss23 — Sat, 23 Nov 2024 15:20:17 +0000

Hey @editor, yeah thanks for asking. The installers were good actually once I managed to get a response. They filled the cavity and put insulation around the pipe and it’s tonnes better now.

system working well and toasty in the cold months.

we’ve settled on the pumps at the lowest level in the summer but once it gets colder I bump it to level 2 to make sure the radiators furthest away from the cylinder are getting hot

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

Mars — Thu, 21 Nov 2024 21:32:53 +0000

@dannymoss23 we're well into winter now. Did you resolve your noise issues?

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

DannyMoss23 — Fri, 12 Jan 2024 12:24:30 +0000

No separators though ☹️

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

iancalderbank — Fri, 12 Jan 2024 12:20:16 +0000

@dannymoss23 its not that exciting... you can't not have one ! they're absolutely standard required items , your system wouldn't work at all without one, it'd be airlocked all the time.

whats optional, but more interesting and beneficial to long term noise reduction is an air separator as per my 2nd pic. I doubt you've got one. fitting one would be a likely next step if putting insulation around the pipes doesn't help (or not as much as you want it to). they're about £100 to buy, easy job to fit if there's a suitable length of pipe it can go on (should be one around your cylinder). there might be an economy on your fitters time to have them do it at the same time as the other stuff.

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

DannyMoss23 — Fri, 12 Jan 2024 12:04:09 +0000

@iancalderbank Hazaar! We have one……

5840

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

iancalderbank — Fri, 12 Jan 2024 10:43:40 +0000

@dannymoss23 an air vent looks something like this 5828

and will be at the top of any high points in the pipework . definitely should be one around your cylinder.

an air separator looks like this

5830

and you may not have one. but worth getting one fitted, especially if they are coming back and draining down.

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

iancalderbank — Fri, 12 Jan 2024 10:25:26 +0000

@dannymoss23 PP will just be running slower, thats why its gone quieter. check your flow rate, it may be lower than you want.

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

DannyMoss23 — Fri, 12 Jan 2024 10:25:07 +0000

@iancalderbank Where would I look for an air vent on the system and I’ll have a look?

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

DannyMoss23 — Fri, 12 Jan 2024 10:22:26 +0000

Ah yes sorry Mike got my pressure modes mixed up! Thanks

RE: ASHP flow through pipes is noisy and preventing us from using at night......looking for help.

iancalderbank — Fri, 12 Jan 2024 10:21:32 +0000

@dannymoss23 so they've used the proper method as far as I can tell to get out the garage wall to the ASHP (big hole, insulation through hole, pipe through insulation. They need to be encouraged to do the same to get the pipes the bedroom.

the devices outside with the gaps in insulation are anti-freeze valves. they are not done correctly, they should not have as much exposed to the air as they have. primary pro is your bible yet again (its not exciting but it really is worth looking at)

https://www.youtube.com/watch?v=Wt1WfYUK2QU&ab_channel=PrimaryPro

you should also check if they are sheltered from precipitation or drips from other parts of the house. Basically if ice or snow should form or sit on top of them , they will open (acting as though the system has frozen up) and start draining down that part of your system. They are there as a last-resort only so they need to be protected from weather.

air in system - yes a very good point.

Do you have an air separator in your system? This is NOT the same thing as an air vent. An air vent removes large chunks of air (air locks) which can form at the top of any pipe. All radiators have them of course. All systems have to have air vents at all the high points, and they are cheap (£5).

Whereas an air separator removes tiny bubbles , which will never be removed by air vents. They are absolutely wonderful at removing flow noise. I have always had them on my systems. Google "spirotech spirovent". They are a bit more expensive (order of £100-150 depending on size) but you only need one.