When master plumber Anthony Tosco installs equipment such as boilers and water heaters, safety — for him, his technicians and his customers — is always top of mind. As such, the owner of Avanti Plumbing, Heating and Cooling swears by the BTU 900
combustion tester made by E Instruments International.
“There’s no way to just look at an open flame and make adjustments for efficiency and safety,” says Tosco, who opened shop in 2006 in Audubon, Pennsylvania. “You can’t smell carbon monoxide, so you need this tool to execute jobs and make sure equipment is performing up to manufacturers’ specifications. During
