Just had a PIV unit installed. Questions...

Apjs87

Hi

Just had a PIV unit installed due to large amounts of condensation on windows as well as front and back doors. It's a Nuaire unit with the heating element to take the chill off the air.

All the marketing and videos suggest the unit is barely audible but our unit is noticeably noisy even on slow fan speeds. It doesnt sound like air noise coming from the outlet but like a small engine running in the background. This noise only increases as the fan speed increases.

It is joist mounted rather than suspended. 

Any thoughts from anyone?

Apjs87

so people can hear the noise. Apologies for the baby noise

https://www.dropbox.com/s/c1r7sjh5lqr4h7x/VID20220222183551.mp4?dl=0
https://www.dropbox.com/s/g2neg2xjvs90jws/VID20220222183532.mp4?dl=0

tacpot12

It was not a good idea to mount it on the joists. Normally large fan units are installed on isolation mounts if they are being attached to timber. Have you spoken to the installer and asked them to rectify the problem? 

greyteam1959

When I installed my unit I suspended it using the nylon cord supplied.
It was easier to do that rather than fix it to the joists.
Having listened to your video clip that is way noisier than my Drimaster unit.
If I stand directly under my unit I struggle to hear it to be honest.
I think you should really get your installer back to change it to suspended.
There is also the possibility that you have a faulty unit 

Apjs87

greyteam1959 said:

When I installed my unit I suspended it using the nylon cord supplied.
It was easier to do that rather than fix it to the joists.
Having listened to your video clip that is way noisier than my Drimaster unit.
If I stand directly under my unit I struggle to hear it to be honest.
I think you should really get your installer back to change it to suspended.
There is also the possibility that you have a faulty unit 

Thank you for replying. Interestingly the noise level has dropped overnight. Maybe there was a slight run in time?

Either way the installer is coming back today to suspend for us in order to reduce noise further. 

If there is a fault then it'll still arise later down the line. 

vic_sf49

Please keep an eye on how much the heated component costs to run, especially with electricity prices rising.

Racky_Roo

mine is audible, especially in the bedroom which is under where it's mounted. I had it checked there's not an issue with it, I just hadn't appreciated there will be some noise. I have put mine on a timer so it goes off at 11pm and back on at 7.30am and that's solved the issue