Economite Legacy Models

Functional Replacement Cross Reference

Old Midco Product
New Midco Product Models
E20B
(Firing Up to 200,000 BTU/H)7
E20B
(Firing Up to 225,000 BTU/H)7
DS24A
(Firing Up to 200,000 BTU/H)3
DS24A
(Firing Up to 225,000 BTU/H)3
RE32
RS40
400B-027
RE4400B2,4
RE44002
DS45B3
400-33
RE44002
400B-334
RE4400B2,4
RE44002
F400-33
RE4850A2,5
F400B-334
800-33 (5" Blast Tube)
RE4850A2,5 (4" Blast Tube)
RE4850BA2,6
(4" Blast Tube)

New Midco Product Notes

  1. Field convertible to propane gas as shipped from factory.
  2. Propane gas conversion kits are available, contact Midco for assistance.
  3. "DS" prefix or suffix indicates 24 volt direct spark ignition.
  4. "B" suffix indicates 24 volt controls and valves.
  5. "A" suffix is an "In House" code regarding the retention plate.
  6. "BA" suffix indicates a combination of B suffix and A suffix.
  7. E20B and 400B-02 have constant standing pilots; EC and RE4000 burners offer electronic spark ignition.

RE32
Adjustable telescoping nozzle allows burner to be installed in compact vestibule applications. Features intermittent spark ignited pilot with electronic safety.


400-33/400B-33
Intermittent pilot with automatic spark ignition, electronic safety with pre-purge.


F400-33/F400B-33
Features pre-purge and automatic spark ignited intermittent pilot with electronic flame safeguard. Its motor is ideal for an updraft or downdraft boiler or furnace application.


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.


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.


The Economite is designed to operate over a wide range of gas residential, commercial boilers and furnace applications providing a long lasting, trouble free gas fired installation of unexcelled efficiency. A small, silent multi valve blower furnishes air in the correct amount for complete combustion regardless of varying flue drafts. The burner is shipped fully assembled, fire tested and ready for installation. When compared to atmospheric burners, the Midco Economite power burners cut fuel costs by a minimum of 10%. Power gas burner design puts all the components outside the fire box and away from heat. Components last longer, service is easier and maintenance cost reduced.

Specifications

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

700,000

300,000

1"

1/6

4"

9"

CSA US/Canada

65 lbs.

Assembly Includes

  • Combustion Air Blower With 120Volts, 60 Hz Motor
  • Blower Safety Switch
  • Automatic Gas Valve
  • Adjustable Gas Pressure Regulator
  • 4" Diameter Burner Tube
  • R Series with Fixed Four Bolt Mounting Flange
  • Complete Installation Literature

Control Components

All Models are equipped for 100% safety shut-off.

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

Redundant main gas valves are furnished on all CSA certified and UL Listed burners.