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Temperature and pressure relief

Temperature and pressure relief valve is a core safety device required on all unvented ... Atmospheric, open-combustion furnaces and boilers, as well as fan-assisted furnaces and boilers, should be vented into masonry chimneys, metal double-wall chimneys, or another type of manufactured chimney masonry chimneys should have a fireclay, masonry liner or a retrofitted metal flue liner. Old (possibly 30's/40's) electric boiler, 20" high, 15"x15" has been painted over but original enamel.

Added: 2020-05-10 | Category: one
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