Propex exhaust racket!

[barney]

Hi Folks

I'm after some advice from all you propex users.

I've just fitted a propex heater and I'm a bit surprised by the noise out of the exhaust.

It sounds really uneven - if that makes sense, like a car exhaust with an uneven tickover.

From inside the van it reminds me of trying to sleep at a music festival with a bassline rumbling away!

Is this normal?

Should I maybe try shortening the exhaust?

Has anyone tried fitting a silencer to their exhaust?

Am I just too light a sleeper?!

Ta for any advice

Barney

[Titus A Duxass]

I've just fitted mine and it's relatively quiet.
I didn't change the length the pipes that came with the kit.

We don't intend using it when sleeping.

[Gunslinger]

If I remember correctly the inlet and exhaust pipes should be the same length, ie balanced. But not sure if that would cause the symptom you describe

[jamesc76]

Is it new ??? How much gas in the bottle etc?

[barney]

Yeah - tis new...and I will be giving propex a shout, but just wanted to make sure this exhaust humming/burbling wasn't normal.

No problem with the sound coming from the actual box itself - just the exhaust.

Full bottle of propane...but it's just occurred to me that maybe the regulator is shafted - could that account for uneven gas flow into the unit and out the exhaust...or is that unlikely?

Thanks folks

Barney

[T'Onion]

Have you got it clamped up correctly ? sounds like its vibrating , trying getting underneath it and seeing if you can see if it loose anywhere , remember the exhaust gets hot very quickly

[barney]

Inlet and exhaut pipes are both secure, facing the correct way and the recommended distance from each other.

[T'Onion]

so is it noisy with the exhaust on ?

[barney]

Yes, it's noisy with the exhaust on...like the exhaust gas is coming out unevenly. Not making a spluttering sound or anything really loud, just an uneven rumbling.

Does that sound normal or should the exhaust be giving a more constant note?

[gti mad man]

im sure they dotn have to be the same length
well it does have a van in it so will whirr a bit

you could try mounting it on rubber mountings if its a vibratrion

[matty o]

mine does the same sounds like a didgeridoo i was told it was normal.

[Titus A Duxass]

mine does the same sounds like a didgeridoo i was told it was normal.

That's what mine sounds like (great description Matty), but I wouldn't call it loud.
You can hear it in the van but the fan is louder.

[barney]

mine does the same sounds like a didgeridoo i was told it was normal.

Yep - that's the noise described perfectly.

Guess I'll just have to get some ear-plugs or drink a lot more beer too make me sleep through it!

Ta for all your help folks.

Barney

[kevtherev]

I find it a hypnotic drone.