Coming out

John Mills_3

on its way out. Luckily the asbestos company is removing it for us! New gas boiler goes in next week.

Dale

White Box?

Thanks John I love a real picture of a good bad example like this bull head no union supply header, but, what is the white box next to the copper fill line on the left?

John Mills_3

I don't know...

I just take the pictures! Been there 50 years and purring like a kitten. Fill problems keep flooding it and they are nervous about their underground tank so we are going to gas. One of the others may be able to say what that thingie is.

Unknown

I don't know what brand it is,

I bet it puts the condensate back in the boiler if the steam pressure gets too high (above 1/2 - 1 PSI) by pressurizing the returns momentarily.

A return trap/ reciever / call it what you may, I bet that is what it is. Don't cut it out.

Noel

Steamhead

Right you are, Noel- this is a Vapor system

That "white box" is called either a Boiler Return Trap or an Alternating Receiver. Looks a lot like a Webster unit. And yes, it should stay right where it is. If it's not working, Tunstall can rebuild it.

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John Mills_3

There is a

pipe running from the supply to this box. I take it we leave that pipe in place and run an equalizer to the return?

Unknown

Ummmm,

I have a couple more questions. Are the check valves still there, below it?

How does the air vent from the system? That's the biggy.

In general, the steam supply to it is fed from the header area. The return connections, including the check valves, go before the Hartford Loop and equalizer (not interfereing with them) on the low return connection.

BE VEWY, VEWY, VEWY, carefuw of the water line (Elmer Fudd) on your new boiler, as the height of the check valves, the reciever, and the vent connection relies on the water line being where it is. Build the pad to a height that let's the new water line be the same as the old one.

By the way, that's a nice old vaporstat on there. What pressure was it set at?

Noel

Steamhead

There is also

one connected to the return. They should both be left as they are. If you need to move the steam line connection, I believe it should be as high as possible so water won't enter it. It looks like whoever installed that boiler piped the BRT steam line off the safety valve riser. I wonder if that would meet code now?

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J.C.A._3

Hey Noel,

Looks like it may be a bit difficult to get a flue connector if they keep the same waterline !
Anyone make a rear flue gas fired steam boiler? I don't remember seeing one in a long time! Chris