Weil steamer

better off using

Better off using the tekmar steamer control

Before using two stage....

I'd see if it needs high fire at all. I have only been on one job in 15 years with an LGB that was actually sized right. All of the other systems only needed low fire to provide enough steam to support the radiation. Typically I just pull the second stage gas valve wire off and set it aside. I looked at a couple steamers this year that I estimate are 3 to 6 times what is needed for the structures. Talk about short cycle hell and leaky gaskets in only a few years time. Yikes!

Boilerpro

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The two gas valves

I think the LGB-6 has only one gas train. The two valves are in series. One valve, however, has a low fire circuit and a high fire circuit. There are two ignitors too. The first ignitor lights the pilot flame, then turns on low fire. When the flame travels across all the burners it trips a flame sensor connected to the second ignitor. This ignitor just turns on high fire.

Boilerpro

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