Operating instructions
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Printed in China
SIZE AND CAPACITY OF PROPANE 
GAS CYLINDERS
NOTE: Chart above shows number of 
100 pound tanks needed to operate this 
heater at a given temperature.
Less gas is vaporized at lower 
temperatures. You may need two or 
more 100 pound tanks, or one larger  
tank in colder weather. Your local 
propane gas dealer will help you select 
the proper supply system. 
General Safety Information 
Make sure you read and thoroughly 
understand these safety and operating 
instructions. Keep these instructions for 
future reference. They are your guides 
to safe and proper operation of this 
heater. 
Indicates an 
imminently 
hazardous situation which, if not 
avoided, WILL result in death or 
serious injury. 
Indicates a 
potentially 
hazardous situation which, if not 
avoided, COULD result in death or serious 
injury.
Indicates a 
potentially 
hazardous situation which, if not 
avoided, MAY result in minor or 
moderate injury.
Always turn off 
heater at control 
knob and then close LP cylinder when not 
in use.
Do not operate this 
heater until you have 
read, and thoroughly understand these 
safety and operating instructions. Failure 
to comply with the precautions and 
instructions provided with this heater can 
result in death, serious bodily injury, 
property loss or damage from the 
hazards of fire, explosion, burns, or 
electrical shock. Only persons who can 
read and understand these instructions 
should use or service this heater. Not for 
residential, household or recreational 
vehicle use. Please read this manual.
Consumer: Retain this manual for 
future reference.
Dyna-Glo
®
 Delux Propane 
Gas-Fired Radiant Heater
Operating Instructions & Parts Manual  RA125LPDGD
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and 
others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for 
future reference.
Description
Dyna-Glo Delux Model RA125LPDGD heater is a 125,000 BTU/Hr construction 
heater.  
This heater uses propane gas for combustion. It is primarily intended for  
temporary heating of well-ventilated buildings under construction, alteration  
or repair. This heater should be utilized in sheltered, well-ventilated areas,  
but never in occupied dwellings.
     Fuel Consumption  Manifold  Inlet Gas Supply      Dimensions 
 Model  BTU/Hr  Maximum  Pressure  Pressure  Ignitor Gap  Weight (Lbs)  L x W x H (in.)
RA125LPDGD 50,000 to  5.77 lbs/hr  11” W.C.  Min. 5 psi  0.19“  20.3 (heater) 16.3 x 
16.3 x 29.8 
   125,000      Max. Bottle Pressure
 Fuel Type – Propane Only  Ignition Type – Piezo  Minimum Operating Temp. – -20°F (-29°C)
Specifications
Temperature 
(°F) at Tank
No. of Tanks Needed
50,000 BTU/Hr  100,000 BTU/Hr
32
1 2
20 1 2
10 1 3
0 1 3
-10 2
Use Larger 
Tank
-20 2
Use Larger 
Tank
Figure 1 – Model 
RA125LPDGD
Unpacking 
1. Remove heater, accessories and all 
hardware from the shipping carton. 
NOTE: Save the box and packaging 
materials for future use. After 
unpacking unit, inspect carefully for any 
damage that may have occurred during 
transit. Check for loose, missing or 
damaged parts. Shipping damage claim 
must be filed with carrier. 
GHP Group, Inc.
8280 Austin Avenue 
Morton Grove, IL 60053
CSA 2.14b-2009, ANS Z83.7b-2009 
Construction Heater
C US
C US
PROFESSIONAL GRADE
Rev 2012-06-08









