Boiler Specifications:

Boiler Unit:

Wet base, horizontal firetube, A.S.M.E. H-2 Code constructed.

30 psi boiler with National Board Registration Number.

Shell and combustion chamber made of SA36 grade carbon steel, 1/4 inch thick.

Tube sheet made of SA36 grade carbon steel, 5/16 inch thick.

Tubes made of SA178A grade 12 gauge carbon steel.

Boiler has welded tubes and no economizers in the tubes.

B200, B300 and B500 models have two aquastat wells installed. B105 and B150 have a single aquastat well installed.

B200, B300 and B500 models have burner door hinged on the left side complete with ceramic fiber board insulation, sight door and handles.

Flue collector box complete with removal cover allowing straight through access to boiler tubes and to breeching.

Nuts for bolts for access door and collector box are brass to reduce heat-related binding.

Boiler block is black

B105 and B150 models have 1" legs. Other models have 4" legs, bolted to skid for shipment.

B105 and B150 models are shipped with the boiler jackets installed, less controls and wiring. All other boiler models are shipped with cover jacket and insulation blanket removed. The boiler vessel itself is in a single section.

Jacket:

20 gauge jacket with 1.1# density fiberglass insulation.

Jacket cover color is blue.

B200, B300 and B500 model boilers shipped with cover jacket and insulation blanket removed

Cast Iron vs Steel

Steel is the modern solution to efficient long term heating needs with boiler systems. Steel is typically 50% stronger than cast iron. A boiler manufactured with steel is more resistant to corrosion than cast iron. Steel is malleable, flexible and heats up rapidly. Its structure allows it to expand and contract and is very resistant to temperature shock. ASME codes don't allow cast iron boilers to be used on steam at pressures any greater than 15psi or 250 degree F water.

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