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Re: New: Problems with fairly new BURNHAM Boiler

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Posted by Norm on December 05, 2003 at 20:34:27:

In Reply to: Re: New: Problems with fairly new BURNHAM Boiler posted by Gary on December 03, 2003 at 05:55:51:

Hi Gary,

This boiler is off-line since it leaks and the other one is doing the job for both now.

I want to fire it up to check it out but there are furnace people who say not to.

So; I don't know the return temp.

I do know that the make up feed is working and does enter through the return line.

And I don't know what would be overfiring even if it was fired up and running. What would constitute overfiring?

Thanks forinterest and help.

Norm

: Whats the temperature of the return water? is the make up feed being fedd into the return?and lastly is the boiler overfiring?

:
: : Our church has 2 large Burnham, gas fired, boilers that were newly installed in 1998. Both developed leaks within 2 years and were repaired (disassembeled and re-sealed). One had 3 sections resealed and one had 2 sections done.

: : Now both are leaking again. Both are leaking from the repaired seals between the sections and now one has a crack in the surface of one of the sections. The crack is not at a corner, edge or seating face, but right in the middle of solid cast iron on a cast flashing mark where it was ground off.

: : Surpisingly, the seals leak when the furnace is not running (fire is OFF) but the leak stops when the furnace is ON (fire is ON).

: : These boilers were installed and repaired by licensed heating contractors, in a new building under the best possible conditions, etc, etc, etc.

: : Of course, Burnham isn't interested in helping us.

: : I can provide some pictures of the damaged areas if that would help you help me.

: : Question: Since on one of the boilers, the leak is very slow and actually doesn't lose enough water to even reach the floor, would it be ok to just forget it and run it as is?

: : At present, we are running with only one furnace. The other one is OFF and there is no pressure in it, so we're not sure how bad it leaks. Both the HOT (out) and COLD (in) valves are closed.

: : Question: Would it be ok to open the inlet (COLD) side valve, pressurize the boiler to see how bad the leak is?

: : Any suggestions?

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Comments:
: Hi Gary, : This boiler is off-line since it leaks and the other one is doing the job for both now. : I want to fire it up to check it out but there are furnace people who say not to. : So; I don't know the return temp. : I do know that the make up feed is working and does enter through the return line. : And I don't know what would be overfiring even if it was fired up and running. What would constitute overfiring? : Thanks forinterest and help. : Norm : : Whats the temperature of the return water? is the make up feed being fedd into the return?and lastly is the boiler overfiring? : : : : : Our church has 2 large Burnham, gas fired, boilers that were newly installed in 1998. Both developed leaks within 2 years and were repaired (disassembeled and re-sealed). One had 3 sections resealed and one had 2 sections done. : : : Now both are leaking again. Both are leaking from the repaired seals between the sections and now one has a crack in the surface of one of the sections. The crack is not at a corner, edge or seating face, but right in the middle of solid cast iron on a cast flashing mark where it was ground off. : : : Surpisingly, the seals leak when the furnace is not running (fire is OFF) but the leak stops when the furnace is ON (fire is ON). : : : These boilers were installed and repaired by licensed heating contractors, in a new building under the best possible conditions, etc, etc, etc. : : : Of course, Burnham isn't interested in helping us. : : : I can provide some pictures of the damaged areas if that would help you help me. : : : Question: Since on one of the boilers, the leak is very slow and actually doesn't lose enough water to even reach the floor, would it be ok to just forget it and run it as is? : : : At present, we are running with only one furnace. The other one is OFF and there is no pressure in it, so we're not sure how bad it leaks. Both the HOT (out) and COLD (in) valves are closed. : : : Question: Would it be ok to open the inlet (COLD) side valve, pressurize the boiler to see how bad the leak is? : : : Any suggestions?

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