Product Guide

H3M SERIES
Specifications
The H3M Series is a high efficiency, ultra-low NOx condensing model with up to 0.91 Uniform
Energy Factor, allowing for the use of 3”or 4” PVC venting or Category IV stainless steel. Indoor
models have an integrated temperature controller and outdoor models include a remote control
as a standard feature.
Model Number* Type
Gas Consumption Input Inlet Gas Pressure**
UEF
Minimum
(BTU/H)
Maximum
(BTU/H)
Minimum
(in. W.C.)
Maximum
(in. W.C.)
T-H3M-DV-N Natural 15,000 120,000 4.0 10.5 0.90
T-H3M-OS-N Natural 15,000 120,000 4.0 10.5 0.91
Model Number*
Maximum
GPM
Hot/Cold
Connections
Gas
Connection
Clearances (in.)
Approx
Shipping
Weight (lbs)
Top Bottom Side Front
T-H3M-DV-N 6.6 3/4" NPT 1/2" NPT 12 12 3 4 54
T-H3M-OS-N 6.6 3/4" NPT 1/2" NPT 36 12 3 24 52
*For propane models, change “N” to “P”
**For propane models, minimum fire is 13,000 BTU/H, minimum inlet gas pressure is 8.0 in. W.C. and maximum inlet gas pressure is
14.0 in. W.C.
ANSI Z21.10.3 • CSA 4.3
CONDENSING
H3M
Temperature
Settings
Dipswitches 120°F (default) 140°F
With 100209924 remote (max. distance 400’ from heater, non-polarized 120 gauge wiring.)
100°F to 140°F with 5°F intervals (9 options), 120°F Default Factory Setting
Electric 120 V
54 W / 0.7 A
(Operation)
3 W / 0.05 A
(Standby)
224 W / 2 A (Freeze-Protection)
T-H3M-OS
T-H3M-DV
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