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Bosch AquaStar 2700ES

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3" Stainless Steel Vent Pipe

AquaStar 1600H

AquaStar 1600P

AquaStar 125 Models

 

Takagi Gas Water Heaters

4" Stainless Steel Vent Pipe

TKD-20

TK-2

 

 

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Aqua Star Specification Chart

MODEL 125B 125BL 125BS 125HX 38B
ENERGY FACTOR .69 .69 .69 .80 n/a
EFFICIENCY 82% 82% 82% 82% 80%
BTU/Input 117,000 117,000 117,000 117,000 40,000
minimum flow rate 0.5 gpm 1.8 gpm 0.5 gpm 0.5 gpm 0.5 gpm
Gallons Per Minute          
@ 45 degree rise 4.0 4.0 4.0 4.0 1.3
@ 55 degree rise 3.3 3.3 3.3 3.3 1.0
@ 65 degree rise 2.8 2.8 2.8 2.8 0.9
@ 90 degree rise 2.4 2.4 2.4 2.4 0.8
flue size 5 inch 5 inch 5 inch 5 inch 4 inch
water inlet 1/2" NPT 1/2" NPT 1/2" NPT 1/2" NPT 1/2" NPT
gas inlet connection 1/2" NPT 1/2" NPT 1/2" NPT 1/2" NPT 1/2" NPT
height 29 3/4" 29 3/4" 29 3/4" 29 3/4" 25 3/8"
width 18 1/4" 18 1/4" 18 1/4" 18 1/4" 10 5/8"
depth 8 3/4" 8 3/4" 8 3/4" 8 3/4" 9 1/8"
shipping weight 44 lbs. 44 lbs. 44 lbs. 44 lbs. 25 lbs.
min. water pressure 15 PSI 15 PSI 15 PSI 15 PSI 15 PSI
max. water pressure 150 PSI 150 PSI 150 PSI 150 PSI 150 PSI
Min Gas Pressure (w.c.)          
LP gas 11" W.C. 11" W.C. 11" W.C. 11" W.C. 11" W.C.
Natual gas 7" W.C. 7" W.C. 7" W.C. 7" W.C. 7" W.C.