Product Guide

Specifications
Installations are simple and flexible with
contractor-preferred concentric venting
Long venting runs up to 43 feet and
operates in altitudes up to 10,100 feet
Gas convertible from natural gas to
propane using the included conversion kit
Flow Rate up to 6.6 GPM
• Values based on factory testing. 0.4 GPM required for
continuous fire after initial ignition
Meets Ultra-Low NOx requirements
110C: Flow Rate vs. Temperature Rise
100
80
6040200.0
8.0
9.0
7.0
6.0
5.0
1.0
2.0
3.0
4.0
0
Flow rate (gpm)
10 30 50 70 90 110
110C: Pressure Loss
Flow Rate (gpm)
Head (ft)
100
110
120
70
60
90
80
50
40
30
10
20
0
8.06.0402.00.0
50
45
40
35
30
25
20
15
10
5
0
Pressure Loss (psi)
13-3/4” (350 mm)
10-1/2” (266.5 mm)
5-7/16” (137.7 mm)
19-1/2” (495.7 mm)
20-1/2” (520 mm)
6-3/8”
(162.3 mm)
7-9/16”
(192.3 mm)
4-1/4”
(107.8 mm)
5-11/16”
(145 mm)
Cold 1-5/8” (42.0 mm)
Hot 4-1/8” (105.4 mm)
120 VAC 2-1/4” (57 mm)
Gas 4-13/16” (122.1)
1.0” (25.5 mm)
5-7/16” (137.7 mm)
Top view
Front view Side view
Boom view
13-3/4” (350 mm)
10-1/2” (266.5 mm)
5-7/16” (137.7 mm)
19-1/2” (495.7 mm)
20-1/2” (520 mm)
6-3/8”
(162.3 mm)
7-9/16”
(192.3 mm)
4-1/4”
(107.8 mm)
5-11/16”
(145 mm)
Cold 1-5/8” (42.0 mm)
Hot 4-1/8” (105.4 mm)
120 VAC 2-1/4” (57 mm)
Gas 4-13/16” (122.1)
1.0” (25.5 mm)
5-7/16” (137.7 mm)
Top view
Front view Side view
Boom view
Dimensions
Water Pressure: 15-150 psi
• Pressure Only Relief Valve Requires (Min 140,000 btu/h,
150 psi)
• 40 psi or above recommended for max. flow
Warranty
• 15-year limited warranty on heat exchanger in residential
applications.
• 5-year limited warranty on heat exchanger in commercial
applications.
• 5-year warranty on all parts.
• Refer to takagi.com for further warranty details
110C: Flow Rate vs. Temperature Rise
Temperature rise (°F)
Flow rate (gpm)
110C: Pressure Loss
Flow Rate (gpm)
Pressure Loss (psi) Head (ft)
18