Counterflo Heaters - Page 2

Counterflo FEATURES

LONG FILE COMBUSTION  CHAMBER

The floating, heavy gauge, stainless steel combustion chamber is designed to withstand contraction and expansion cycles to ensure long, trouble-free operation. The original Counterflo combustion chamber was introduced over forty years ago. This time-tested reliability and proven performance assures the extended life of the Counterflo chamber.

AIR COLLED RADIATION SHELD

An internal, air cooled radiation shield is provided to ensure minimum radiation, to limit transmission losses to less than 2% and to cool cabinet  surfaces.

FLUE GAS EXHAUSTER

The combustion gas exhaust system includes a heavy-duty exhaust fan, three phase motor, adjustable V-belt drive and heat slinger to yield low ambient temperature motor operating conditions.

COMPLETE FIELD SERVICE CAPABILITIES

Hastings Industries  is the only commercial and industrial heating and ventilating equipment manufacturer with a company-staffed field service organization. This insures that Hastings' products are  properly built, properly installed and properly serviced.

FOUR-PASS HEAT EXCHANGE

In the Counterflo heater design, the combustion products have flow internally four times across the path of the air to be heated. The first two passes are within the primary heat exchanger, a stainless steel combustion chamber where the flame and hot gases release 75% of their total heat through contact with the entire chamber surface. The third and fourth passes are made in the secondary heat exchanger  through two staggered economizer  tube sections. The net result is a compact and highly efficient heat exchange unit.

Typical Schematic Piping Diagram (No optional Features Shown)

*Required for one-pipe pressure system only.

**Added for two-pipe suction system.