GETTING
ST
AR
TED
Proper Sizing of a Steam Humidifier
Converting square footage to cubic volume requires multiplying the square footage by the ceiling height
(i.e. 2000 square foot space with 10 foot ceilings is 20,000 cubic feet). In general, the higher the ceilings, the
smaller the square footage space each Steam Humidifier will cover since it must humidify the additional air
volume.
INCLUDE ALL SQUARE FOOTAGE OF THE HOME. FINISHED AND UNFINISHED.
Example 1:
2000 sq ft home: 8 ft ceilings = 16,000 cu ft. (2000 x 8)
Example 2:
2000 sq ft home: 10 ft ceilings = 20,000 cu ft. (2000 x 10)
Example 3:
2000 sq ft home: ½ with 8 ft ceilings, ½ with 12 ft ceilings. = 20,000 cu ft. ((1000 x 8) + (1000 x 12))
INCLUDING CEILING HEIGHT, FINISHED AND UNFINISHED SPACE WILL PROVIDE A MORE ACCURATE
SIZING FOR HUMIDIFICATION.
AHRI
Recommended
Humidity
(Gallons Per Day)
Construction Type
8,000 CU FT
12,000 CU FT 16,000 CU FT 20,000 CU FT
24,000 CU FT
28,000 CU FT
32,000 CU FT
Tight
3.3
4.3
5.4
7.5
9.6
11.7
16
Average
7.6
9.6
11.8
16
20.3
24.4
33
Loose
11.7
14.9
18.1
24.5
30.8
37.1
50
Recommended
Steam
Humidifier
Construction Type
8,000 CU FT
12,000 CU FT 16,000 CU FT
20,000 CU FT
24,000 CU FT
28,000 CU FT
32,000 CU FT
Tight
9 GPD
9 GPD
9 GPD
9 GPD
12 GPD
9 GPD X2
12 GPD X2
Average
9 GPD
12 GPD
9 GPD X2
9 GPD X2
12 GPD X2 12 GPD X3
12 GPD X3
Loose
12 GPD
9 GPD X2 12 GPD X2 12 GPD X3 12 GPD X3 12 GPD X4
12 GPD X4
Steam Humidifier System 69-2285—09
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