Takagi Comparison Chart

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Side-by-side comparison of Takagi tankless water heaters. Compare the power input, energy factor, flow rate and top features to select the best model for your home.


Technical Data Comparison

Specs.
---------
Model
Min.
Max.
Power
(Btu/h)
x1000
Min.
Max.
Capa-
city
(GPM)
30F rise
Temp.
Setting
(F)
Energy
Factor
Approx.
Size
(Inch)
Max.
Vent
Length
(Feet)
Cap
acity
Show
er #
Warr
anty
T-KJr2 19.5
140
0.4
6.6
99
167
0.82 20x14x8 50 1-2 15
T-KJr2U 15.0
140
0.4
6.6
100
140
0.82 20x14x10 50 1-2 15
T-K4 11.0
190
0.4
8.0
99
167
0.82 20x14x10 50 2-3 15
T-K4U 15.0
190
0.4
8.0
100
140
0.82 20x14x10 50 2-3 15
T-H3J 13.0
160
0.4
6.6
100
140
0.95 24x18x11 100 1-2 15
T-H3S 13.0
180
8.0 100
140
0.95 24x18x11 100 2-3 15
T-H3 13.0
199
10.0 100
185
0.95 24x18x11 100 3-4 15
T-D2 11.0
199
10.0 99
185
0.82 20x14x10 50 2-4 15
T-D2U 15.0
199
10.0 100
185
0.82 20x14x10 50 2-4 15
T-M32 24.0
240
9.0 110
185
83.9% 24x19x10 50 3-4 15
T-M50 15.0
380
14.5 110
185
82.4% 26x25x12 50 4-6 15

Model type:

IN - indoor, OS-outdoor, DV- Direct Vent. For the outdoor models no venting is required.

All the models with the energy factor, EF, of 0.67 and over are Energy Star, and those with 0.95 and 0.96 are also condensing.

Lower number of fixtures in the capacity column shows the use in cooler climates while the higher number in warmer climates.

Features Comparison

Specs.
---------
Model
Type Ignition Easy-
Link
System
Multi-
Unit
System
Ultra
Low
NOx
Remote
Contr.
Included
Recir
culation
T-KJr2 IN, OS,
DV
Electr. No No No Yes No
T-KJr2U IN, OS,
DV
Electr. No No Yes Yes No
T-K4 IN, OS,
DV
Electr. No No No Yes No
T-K4U IN, OS,
DV
Electr. No No Yes Yes No
T-H3J IN, OS,
DV
Electr. No No Yes Yes No
T-H3S IN, OS,
DV
Electr. No No Yes Yes No
T-H3 IN, OS,
DV
Electr. Yes Yes Yes Yes No
T-D2 IN, OS,
DV
Electr. Yes No No Yes Yes
T-D2U IN, OS,
DV
Electr. Yes Yes Yes Yes Yes
T-M32 IN, OS,
DV
Electr. Yes Yes No No Yes
T-M50 IN, OS,
DV
Electr. Yes Yes No No Yes

Easy-Link system allows connection up to 4 units into one system without using the system controller.

Multi-unit system allows combination of up to 20 (10 for T-M50) units into one manifold and with the use of multi-controller.

emergency plumber

water heaters