Author: Anonymous

In low pressure steam boilers, the lowest visible part of the gauge glass must be placed a minimum of 1″ above the lowest permissible water level.

Flame failures in gas-fired boilers are commonly caused by ___.

Flame failures in gas-fired boilers are commonly caused by ___.

If the stack height is over ___’ or if an extremely large breeching and stack combination causes excessive draft, a damper can be located in the breeching close to the stack.

If the stack height is over ___’ or if an extremely large breeching and stack combination causes excessive draft, a damper can be located in the breeching close to the stack.

A flame scanner proves the main flame only.

A slow gauge indicates less pressure than is actually present in the boiler.

An outside air thermostat measures the temperature of outside air, which is used to ___.

A slow gauge indicates less pressure than is actually present in the boiler.

A(n) ___ burner is a fuel oil burner that uses air, steam, or fuel oil pressure to atomize fuel oil for maximum combustion efficiency.