Construction Heater
Models:
STRONG!
CH 220 with 10’ hose
CH 225 with 25’ hose
CH 250 with 50’ hose
STACKABLE!
TIP!
WON’T
Heater Dimensions
16 1/2” H x 21 1/2” W x 26” D
Special Features
The Red Dragon “HOT BOX,” made of sturdy, rectangular construction, offers the
following important features not found on other construction heaters:
PLUS…
• Low profile prevents accidental tipping.
• Stackable for convenient storage.
• Heat output: 200,000 BTU/hr. at 18 psi.
• Heavy gauge metal construction.
• Piezo electronic ignitor.
• High heat output close to the surface means
a warmer working area.
• Thermocouple safety control.
• U.L. listed LP-Gas Hose Assemblies.
• 18 psi preset regulator.
• More radiating surface than a cylindrical
shape construction heater.
• One bolt removes burner and all controls.
• Safety Excess Flow P.O.L.
OPERATING INSTRUCTIONS FOR THE “Hot Box”
RED DRAGON CH 220, CH 225 AND CH 250 CONSTRUCTION HEATERS
Note: The “HOT BOX” is intended for the temporary heating of buildings under construction, alteration or repair. Use
only in a well-ventilated area.
Lighting Instructions
1. Remove unit from box. Be sure to remove all packaging.
2. Visually inspect all hose for cuts, nicks or abrasions.
3. Place unit on noncombustible surface and keep the unit away from all combustibles.
4. Connect unit to a 100 lb. LP cylinder (configured for vapor withdrawal).
5. Be sure control valve on unit is closed.
6. Slowly open tank valve.
7. Check all connections for leaks using soapy water. Should a leak be found, correct and retest before
proceeding.
8. Depress button on safety valve and slowly open the control valve until a small amount of gas can be heard
escaping from the orifice.
9. When a small amount of gas is heard, depress ignitor button several times or until unit is lit. If unit fails to
light, close all valves and contact customer service at 800-255-2469.
10. When unit ignites, continue to hold safety valve for 30-60 seconds to warm the thermocouple.
11. After 30-60 seconds, release safety valve button. If unit goes out, repeat steps 1 through 10 holding the
safety valve for up to 90 to 120 seconds.
12. With the unit ignited, adjust flame to desired output.
Storage
• When the heater is to be stored indoors, the connection between the LP-Gas supply cylinder(s) and the
heater must be disconnected and the cylinder(s) removed from the heater and stored in accordance with
NFPA Pamphlet 58.
• The unique design of the “HOT BOX” allows safe stacking of the units to reduce storage space during the
off-season.
• Before igniting the burner after seasonal storage, check to make sure components are free of dust or other
flammable debris which can accumulate during storage.
• A plastic cap protects the P.O.L. during shipment and should be placed over the end of the P.O.L. when
the unit is detached from the propane cylinder. This will keep contaminants out of the propane supply
hose.
Heat Pattern
Heated Air
Deflected Downward
Cool Air
Drawn In
OPERATING INSTRUCTIONS FOR THE “Hot Box”
RED DRAGON CH 220, CH 225 AND CH 250 CONSTRUCTION HEATERS
Questions? If you have any questions about the operations of the CH 220, CH 225 or CH 250 call your local
distributor or Flame Engineering, Inc. at 1-800-255-2469 or fax 785-222-3619.
Parts List
1. P-3200 W (CH 220)
Excess Flow P.O.L.
P-W 795 (CH 225 & CH 250) Hand Tighten Excess Flow P.O.L.
2. R-700 C
18 P.S.I. Preset Regulator
U.L. Listed 10’ LP Gas Hose
U.L. Listed 25’ LP Gas Hose
U.L. Listed 50’ LP Gas Hose
1/4” Female x 3/8” Male Flare Elbow
Safety Valve
3. HP 10 TS (CH 220)
HP 25 TS (CH 225)
HP 50 TS (CH 250)
4.
5. H-19 H
6. M-3012
12”Thermocouple
7. Model 21
8. 332
Ignitor with Lead Wire (3309)
Spark Plug
9
9. 100-CH 221
Heater Burner
10.
11.
12.
V-326
Flame Control Valve
1/4” Elbow
8
CH 221
Complete Burner/Control Assembly
(Includes everything except hose, regulator & P.O.L.)
12
7
Heater Cabinet
Heat Shield
6
10
4
5
Burner Securing Bolt
11
Safety & Operating Information
3
2
1
PO Box 577 • West Hwy 4
LaCrosse, KS 67548-0577
1-800-255-2469 • 785-222-2873 • Fax 785-222-3619
CH220INST12/10/03
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