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Centrifugal Downstream Heaters

Centrifugal Downstream Heaters


Brock’s GUARDIAN® Series Centrifugal

Downstream Heaters are available to match

centrifugal fan models and offer BTU

capacities of up to 5,000,000. This gives

you the flexibility required to meet your

grain conditioning needs for in-bin drying.

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Heater models are available for use with liquid propane, propane vapor, or natural gas fuels and utilize gas-certified solenoid valves. Brock-supplied regulators are standard on liquid propane models.

Brock’s full flame-wall burner provides top fuel-saving performance along with even heat distribution. This design is the most efficient style of burner available. Stainless steel baffles are standard.

Liquid propane heater models include a high capacity internal vaporizer. Vaporizer design features built-in flexibility to position the unit’s coil for optimum performance.

Large inspection door provides maximum accessibility to make it easy to service burner and vaporizer unit. Convenient sight ports on both sides of the heater make it easy to do visual checks

on burner unit operation.

Rodent-resistant conduit protects all exposed wiring, including ignition and flame circuit wires in the burner unit.


Size                                             Fuel Type                                             Capacity Range (BTU)

27”                                Natural Gas/Propane Vapor                               1,200,000 – 3,100,000

27”                                              Liquid Propane                                        1,200,000 – 3,100,000

30”                                  Natural Gas/Propane Vapor                            2,300,000 – 4,000,000

30”                                              Liquid Propane                                       2,300,000 – 4,000,000

33”                                  Natural Gas/Propane Vapor                            3,000,000 – 5,000,000

33”                                              Liquid Propane                                       3,000,000 – 5,000,000


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