Takagi Tankless Water Heaters
Comparison Chart

Takagi T-H3 water heatersTakagi T-H3

A 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

Models / Specs Power
BTU
x1000
Capacity
gal
Temp
F
Energy
Factor
# baths Warranty
T-KJr2 19.5
140
0.4
6.6
99
167
0.82 1-2 15
T-KJr2U 15.0
140
0.4
6.6
100
140
0.82 1-2 15
T-K4 11.0
190
0.4
8.0
99
167
0.82 2-3 15
T-K4U 15.0
190
0.4
8.0
100
140
0.82 2-3 15
T-H3S 13.0
180
8.0 100
140
0.95 2-3 15
T-H3 13.0
199
10.0 100
185
0.95 3-4 15
T-D2 11.0
199
10.0 99
185
0.82 2-4 15
T-D2U 15.0
199
10.0 100
185
0.82 2-4 15
T-M50 15.0
380
14.5 110
185
0.82 4-6 15

IN - indoor, OS-outdoor, DV- Direct Vent.

For the outdoor models, no venting is required.

Features comparison

Models / Specs Type Ignition Easy
Link
Multi
Unit
Control Recirc.
T-KJr2 IN, OS, DV Electr. No No No Yes
T-KJr2U IN, OS, DV Electr. No No Yes Yes
T-K4 IN, OS, DV Electr. No No No Yes
T-K4U IN, OS, DV Electr. No No Yes Yes
T-H3J IN, OS, DV Electr. No No Yes Yes
T-H3S IN, OS, DV Electr. No No Yes Yes
T-H3 IN, OS, DV Electr. Yes Yes Yes Yes
T-D2 IN, OS, DV Electr. Yes No No Yes
T-D2U IN, OS, DV Electr. Yes Yes Yes Yes
T-M32 IN, OS, DV Electr. Yes Yes No No
T-M50 IN, OS, DV Electr. Yes Yes No No

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.

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

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

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

Related articles

Takagi T-KJr2 review
Takagi T-H3 review
Takagi T-K4 review
Takagi T-D2 review
Comparison chart
Takagi error codes guide and how to troubleshoot

› Takagi comparison chart

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