Best Of

You are an asset to to all of us Frank. Thank you

We need to add a "blushing" emoticon to this board.............. @Erin Holohan Haskell ?

Here are the pics I promised. The first two are the burner still in place but with the motor removed- they turned out kinda dark:




Here's what it looks like out of the boiler:



Here it is in our shed, sitting next to another AF I had sitting around. Look at the difference in size, also note how the air tube gets smaller a few inches away from the chassis. This seems to reinforce the theory that they used the same chassis for several different capacities, and used higher motor speeds (and bigger air tubes) for the higher capacities:



Finally, the combustion test. The most recent tag we found was from 2012, with what sounded like "rag-and-tags" in more recent years. This photo isn't downsized as much as I usually do so it may take a bit longer to load. But I wanted you all to see what was on the tag and also what was on my Wöhler's screen. Looks like I lied about the combustion efficiency, it actually got up slightly above 80%.



The Esso had a 1.00x80B nozzle, which I'm assuming was running at 100 PSI. The firebox was what looks like a recent model Lynn bathtub type, which is rather shallow. Not sure if that B (solid cone) nozzle was slamming the flame into the back of the firebox. I really regret not being able to fire the Esso and see what it was doing.

The Beckett is firing a 0.75x80A (hollow cone) at 140 PSI, for a rate of about 0.90 GPH. The flame neatly fits the firebox without impinging on it.

The draft regulator resisted my attempts to adjust it, so I just went with what I had. The baffles certainly helped offset the excess draft.

It's obvious there are some air leaks into this boiler, or it's downfired too far, or both. The nameplate shows a capacity of 1.35 GPH, which of course is with an old-style burner. Dropping this about 15% to accommodate the hotter flame from a modern burner takes us down to 1.15 GPH, so 0.90 doesn't sound excessively low. I suspect air leaks, but we don't want to remove the jacket on a boiler this old for obvious reasons. It's better than it was, and isn't too bad, which is what counts.

Enjoy!