Oil Burner License Study Guide ( Massachusetts )

Electrical energy is supplied to this device so it perform curtain functions {Ans: Load}What are two reasons for a lockout on a stack switch with combustion established ? {Ans: Dirty Helix or low stack temperature}How much air is needed in a confined space? {Ans: 50 cubic feet per 1,000 BTU's}A hot water system where the t stat controls only the circulator and has no direct connection to the burner is an integrated system {Ans: False}Modern equipment employs the use of power vents, What makes this possible ? {Ans: Pre Purge- Post purge controls}What gauge wire is used for a T Stat? {Ans: 18 Guage}