User Guide

Burner Air Patterns

Burner air patterns are much like nozzle spray patterns in that

they fall into the same general classifications, either hollow or

solid. As you would expect, a burner with a hollow air pattern

generally requires a hollow cone fuel nozzle. A burner with a solid

air pattern will give highest efficiency with a solid cone nozzle,

but the flame will probably be longer.

Recommended Combustion

Chamber Dimensions

*Recommend oblong chamber for narrow sprays.

NOTES: These dimensions are for average conversion burners.

Burners with special firing heads may require special

chambers.

Higher back wall, flame baffle or corbelled back wall

increase efficiency on many jobs.

Combustion chamber floor should be insulated on

conversion jobs.

For larger nozzle sizes, use the same approximate

proportions and 90-sq. in. of floor area per 1 gph.

Square or Rectangular

Combustion Chamber

Nozzle Size Spray C Round

or Rating Angle L W H Nozzle Chamber

(GPH) Length Width Height Height (Diameter

(In.) (In.) (In.) (In.) in Inches)

0.50 – 0.65 80° 8 8 11 4 9

0.75 – 0.85 60° 10 8 12 4 *

80° 9 9 13 5 10

45° 14 7 12 4 *

1.00 – 1.10 60° 11 9 13 5 *

80° 10 10 14 6 11

45° 15 8 11 5 *

1.25 – 1.35 60° 12 10 14 6 *

80° 11 11 15 7 12

45° 16 10 12 6 *

1.50 – 1.65 60° 13 11 14 7 *

80° 12 12 15 7 13

45° 18 11 14 6 *

1.75 – 2.00 60° 15 12 15 7 *

80° 14 13 16 8 15

45° 18 12 14 7 *

2.25 – 2.50 60° 17 13 15 8 *

80° 15 14 16 8 16

45° 20 13 15 7 *

3.0 60° 19 14 17 8 *

80° 18 16 18 9 17