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View Full Version : Boiler clearance



wayne soper
08-04-2009, 04:50 PM
Too late for Burnham, Anyone have the clearance requirements for boiler sidewall.

Markus Keller
08-04-2009, 05:07 PM
I'm too lazy to look up the Boiler clearances per Manuf. I just tag'em for lack of fire separation. 1/2 hour in SF, 1 hour in 1-4 multi-unit in the City. Easy for me, easy for others to understand.
In this case, looks like you have around 2-3". That might be enough per Manuf. on a newer boiler like that, not me though. Did you take the cover off? Lots of times there's a clearance tag inside on a panel.

wayne soper
08-04-2009, 05:23 PM
no didn't remove the cover.

Bob Harper
08-04-2009, 05:59 PM
You have clearances to combustibles then you have practical service and inspection clearance. If you cannot get to every *thing* on the boiler and appurtenances, then it's too close. For instance, if the rating plate is on the left side of the boiler housing, then it is too close to access for reading.

Measure from the single walled vent connector: 18" clearance to combustibles unless reduced clearance stated by mfr.

I want to see you replace that PRV without cussing someone.

wayne soper
08-04-2009, 06:29 PM
Thankyou all. And Bob, Nice simple description, thanks.