
LD3-15-40
- Gas: Natural or propane
- BTU/h high fire: 40,000
- BTU/h low fire: 28,000
- Length: 16'-10"
- Weight: 85
- *Mounting heights: 8'-13'
- Combustion chamber: titanium treated steel
- Radiant emitter tubes: 16 ga. 3" aluminized steel

LD3-20-40
- Gas: Natural or propane
- BTU/h high fire: 40,000
- BTU/h low fire: 28,000
- Length: 21'-10"
- Weight: 100
- *Mounting heights: 8'-13'
- Combustion chamber: titanium treated steel
- Radiant emitter tubes: 16 ga. 3" aluminized steel

LD3-30-50
- Gas: Natural or propane
- BTU/h high fire: 50,000
- BTU/h low fire: 35,000
- Length: 31'-7"
- Weight: 120
- *Mounting heights: 9'-14'
- Combustion chamber: titanium treated steel
- Radiant emitter tubes: 16 ga. 3" aluminized steel
* Mounting heights are provided as a guideline. Actual conditions may dictate variations from the above data. Always maintain the published clearances to combustibles.
Clearance to combustibles

LD3 (15, 20)-40
Mount
angle |
Sides | Top | Below |
0° |
15" | 6" | 45" |
45° | Front 58" Back 8" | 10" | 45" |
0° 1 side shield | Front 42"
Back 8" | 6" | 45" |
0° 2 side shields | 20" | 6" | 45" |

LD3 (30)-50
Mount
angle |
Sides | Top | Below |
0° |
11" | 6" | 48" |
45° | Front 39" Back 8" | 10" | 48" |
0° 1 side shield | Front 29"
Back 8" | 6" | 48" |
0° 2 side shields | 16" | 6" | 48" |
0°
20 ft from burner | 7" | 6" | 30" |
Clearances published in LD3 Series manual and on warning label supersede data shown on this page. Reference LD3 Series installation manual for complete information.
Heaters mounted on an angle between 0º and 45º must maintain clearances posted for 0º or 45º, whichever is greater.