Boiler, Air in lines, no purge valves

[Dana]

What the heck does a gauge "read" from the floor ??? ALL reading are ABOVE the boiler not below

Using the floor as the reference plane is fine, if the boiler is mounted in a sump/well, with the gauge at basement floor level, instead of raised well above the floor on blocks, like the boiler in the picture.

I'm aware of at least one cast iron boiler in Brooklyn mounted in a shed dormer, above the top floor ceiling, above ALL the radiation. How relevant is the vertical distance from the basement floor for the pressure settings for that system? The top of the near-boiler plumbing is the highest point on the system.

 

[Dana]

Dana, seems you took a page out of one of my postings on another site from 1999 (your right on the money)

I dunno about that. I read they passed some changes to the laws of physics in the early oughts, about the same time it was legislated that pi=3.00 or something (?)

 

[Sponsor]

 

[Sylvan]

Dana your right the boiler should set in a deep then maybe it should be counted ..

Nah just kidding

It is truly amazing how "fitters" are lobster traps

Here is Christ The kings boiler in a pit (no sump)

 

[Sylvan]

Using the floor as the reference plane is fine, if the boiler is mounted in a sump/well, with the gauge at basement floor level, instead of raised well above the floor on blocks, like the boiler in the picture.

I'm aware of at least one cast iron boiler in Brooklyn mounted in a shed dormer, above the top floor ceiling, above ALL the radiation. How relevant is the vertical distance from the basement floor for the pressure settings for that system? The top of the near-boiler plumbing is the highest point on the system.

Dana was this on Miller ave?

We were hired to install a boiler on the roof to save valuable space below. I wonder what happens when the boiler splits open during a test?

 

[Dana]

I don't know the address- it was in a video about a deep energy retrofit on a multi-story (4 occupied floors?) apartment building taking it to near PassiveHouse levels without going crazy on the budget.

Installing pan under the boiler of sufficient size with an adequate drain can probably manage modestly sized cast iron boiler failures.