Vent stack on boiler

[Mark Aakjar]

Are dampeners needed on all boilers inside the home? I came across a boiler that had solid piping coming off the boiler through the roof.

[John Kogel]

We'll need more info please. Type of fuel, age of unit, metal vent or masonry, length of chimney,etc. Is it a single family res? Water for heat or ..?

[Mark Aakjar]

Sorry. It's a Wellmclain, aprox 1989, oil fired boiler. In a single family home two storys located in basement

[Markus Keller]

A damper is a good idea but it doesn't have to have one. Back in 89 a damper was still more of an 'option' item for many WM boilers. Some of the larger size boiler didn't allow for dampers.
You could run the model # and see if a damper is an option for this boiler. 89, I doubt it has a built-in control circuit. Installing a relay and damper is pretty easy for a good HVAC tech.

[David Bell]

It should however have a barometric damper.