Economite Legacy Models
Please contact Midco or Rep to verify application.
Old Midco Product
New Product Models

RE32
Adjustable telescoping nozzle allows burner to be installed in compact vestibule applications. Features intermittent spark ignited pilot with electronic safety.
EC300
Note: field convertible to propane gas as shipped from factory

400-33/400B-33
RE4400
(replacement for 400-33 and 400B-33)
Note: field convertible to propane gas as shipped from factory
RE4400B
(replacement for 400B-33)
Note: “B” suffix indicates 24 volt controls and valves. Propane gas conversion kits are available, contact Midco for assistance.
RE4400DS
(replacement for 400B-33)
Note: “DS” suffix indicates 24 volt direct spark ignition. Propane gas conversion kits are available, contact Midco for assistance.

F400-33/F400B-33
RE4850A, 4700BA
Note: “A” suffix is an “In-House” code regarding the rention plate. Propane gas conversion kits are available, contact Midco for assistance.

DS24A
Midco’s exclusive 3-stage air silencer and thermo 100% shut-off safety pilot provide dependable and quiet operation. Ideal for a boiler or furnace of the updraft type.
Note: “DS” prefix or suffix indicates 24 volt direct spark ignition.
EC200
(replacement for DS24A firing up to 200,000 BTU/hr)
Note: Field convertible to propane gas as shipped from factory.
EC300
(replacement for DS24A firing up to 200,000 BTU/hr)
Note: Field convertible to propane gas as shipped from factory.

DS45B
Direct spark ignition models with electronic flame safeguard. No pilot outage problems, no pilot costs. High input capacity provides lots of power in very little space any space.
Note: “DS” prefix or suffix indicates 24 volt direct spark ignition.
RE4400DS
Note: “DS” prefix or suffix indicates 24 volt direct spark ignition. Propane gas conversion kits are available, contact Midco for assistance
E20B, RS40
E20B note: firing up to 200,000 BTU/hr. E20B has a constant standing pilot.
EC200
Note: Field convertible to propane gas as shipped from factory. EC burners offer electric spark ignition.
E20B, RS40
E20B note: firing up to 225,000 BTU/hr. E20B has a constant standing pilot.
EC300
Note: Field convertible to propane gas as shipped from factory. EC burners offer electronic spark ignition.
400B-02
400B-2 has a constant standing pilot.
RE4400DS, RE4400B, RE4400
Note: RE4000 burners offer electric spark ignition. Propane gas conversion kits are available, contact Midco for assistance.
RE4400DS: “DS” prefix or suffix indicates 24 volt direct spark ignition.
RE4400B: “B” suffix indicates 24 volt controls and valves.
800-33
5″ Blast Tube
RE4850A, RE4850BA
4″ Blast Tube
Note: Propane gas conversion kits are available, contact Midco for assistance. “A” suffix is an “in-house” code regarding the retention plate. “B” suffix indicates 24 volt controls and valves.
Control Components
- E20B, E20BP, 400B-02, 400B-02P: Constant pilot with manual piezo ignition, thermoelectric safety
- RE32: Spark Ignited intermittent pilot, electronic safety
- DS24A, DS45B: Direct spark ignition of main flame, electronic safety
- 400-33, 400B-33, F400-33, F400B-33: Spark ignited Intermittent pilot, electronic safety with pre-purge
Model Number |
Maximum Input Rating* |
Minimum Input Rating* |
Gas Connection Iron Pipe Size | Motor Horsepower |
Diameter of Nozzle |
Nozzle Length |
Design Certified or Listed By | Shipping Weight |
---|---|---|---|---|---|---|---|---|
E20B |
225,000 | 50,000 | 1/2“ | 1/40 | 4″ | 8″ | CSA US/Canada | 27 lbs. |
DS24A | 225,000 | 50,000 | 1/2“ | 1/40 | 4″ | 8″ | CSA US/Canada | 28 lbs. |
RE32 | 300,000 | 50,000 | 1/2“ | 1/40 | 4″ | ADJ. 21/2” -61/4“ | CSA US | 26 lbs. |
400B-02 | 400,000 | 200,000 | 3/4“ | 1/30 | 4″ | 9″ | CSA US/Canada | 36 lbs. |
DS45B | 400,000 | 200,000 | 3/4“ | 1/30 | 4″ | 9″ | CSA US/Canada | 38 lbs. |
400-33 | 400,000 | 185,000 | 1″ | 1/30 | 4″ | 9″ | CSA US/Canada | 54 lbs. |
400B-33 | 400,000 | 185,000 | 3/4“ | 1/30 | 4″ | 9″ | CSA US/Canada | 42 lbs. |
F400-33 | 700,000 | 300,000 | 11/4“ | 1/6 | 4″ | 9″ | CSA US/Canada | 66 lbs. |
F400B-33 |
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Installation Manual
Parts List