§ 47-30. Type of pipe; brass union required; material on pipe joints; cutoff in steam installations.

A. 

All pipes used in fuel-oil heating installations shall be of standard, full-weight brass, copper, galvanized iron or steel, with suitable brass or galvanized malleable iron or steel fittings. No rubber or other packages shall be used. If unions are used, at least one face must be of brass with close-fitting conical joints. Litharge and glycerin, shellac or other suitable material shall be used on pipe joints. Such piping shall run under the cellar wherever possible and shall be protected from injury.

B. 

In all steam installations Tan approved low-water cutoff shall be installed to prevent the continued operation of oil-burning equipment with the water below the danger line.