Metal push nipples avoid leaks | Slant/Fin SX-150 to SX-210 guide

Computer-aided design. Highest quality manufacturing. Superior components.

Advanced design heat exchanger with metal push nipples provides superior performance, longer life.

Computer-aided design of heat exchanger maximizes transfer of heat from the gas flame to the boiler water which then flows into your heating system. Superior heat transfer properties permit use of smaller, compact cast-iron heat exchanger sections. The flue pas- sage design, thermal pin pattern and consistent wall thickness ensure uniform heat transfer with less thermal strain and metal fatigue.

Metal push nipples avoid leaks.

Slant/Fin uses only metal push nipples that expand and contract with the individual boiler sections that they connect. In many ordi- nary boilers, flimsy rubber or plastic gaskets are substituted for metal push nipples and are subject to deterioration and leaks.

Reliable heavy-duty vent damper saves energy.

The motorized Slant/Fin vent damper increases efficiency of the boiler by reducing standby losses. Motor closes the chimney vent when the burner is off, fully opens it in anticipation of combustion. May be installed horizontally or vertically to accommodate varying vent pipe requirements. Heavy-duty collar maintains dimensional stability for smooth operation.

Vent damper shown on “S” model.

Insulated base

Base is constructed of heavy gauge aluminized steel. Thick refracto- ry insulation surrounds combustion chamber, minimizing standby losses and increasing efficiency.

Long-life burners

Quiet, light and easy to install or remove. Same stainless steel burners serve natural or propane gas. Special port construction will not permit flame to “lift” or flash back. Sentry burners last longer too because of low operating temperature. Input per burner is only 15,000 Btu/hr.