Hello there,

Well I am handling a rather big project which includes AC condensate drain pipes from several units being collected into one pipe and then out to the drain outside.

I know that, usually, it is better better to insulate AC condensate pipes.
The contractor will insulate the condensate pipes running above the false ceiling.
But he says that he will not insulate the condensate pipes running inside the walls and those buried underground.

How critical is the issue?

Regards,

Paul

Typically, the condensate lines running through a conditioned space will not condensate and drip water. Those underground will not matter either way. Do you have a local HVAC building inspector where you live?

If the condensate lines are copper then yes they will cause dripping from condensation forming on the out side of them and they should be insulated while they are within the building but not underground, if they are pvc then you probably won't have this problem, Mike

Outside copper lines don't really need to be insulated because the condensation is not a problem, but anything inside should be just in case of water drip. It can be a few years before a small drip turns into something really bad.

Oh just to make things clearer..
The AC condensate pipes are UPVC pipes.

So the contractor will indeed insulate them above the false ceiling.

So I understand from your replies that there would be no need to insulate them inside the walls or underground buried in the soil?

Paul

I would say that is correct.

Thx man. Appreciate it.