Exam (elaborations)
MA oil burners test 94 |Review | Questions with 100% Correct Answers | Verified | Latest Update
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Air Heater. - ️️. An indirect-fired appliance intended to supply heated air for space heating and other purposes, but not intended for permanent installation. Air pressure switch . - ️️An electrical switch designed to prove that the proper draft has been established by the power venter o...
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