Product Guide

H3 SERIES
Specifications
Utilizing commercial-grade copper alloy for the heat exchanger tubing, the H3 is suitable
for heavier residential usages such as combination space heating and domestic recirculation
systems. Indoor models have an integrated temperature controller and outdoor models include
a remote control as a standard feature. Indoor models are certified up to 10,100 ft. altitude.
Complies with Ultra-Low NOx regulations.
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-H3-DV-N Natural 15,000 199,000 4.0 10.5 0.93
T-H3-OS-N Natural 15,000 199,000 4.0 10.5 0.95
*For propane models, change “N” to “P”
**For propane models, minimum fire rate is 13,000 BTU/H, minimum inlet gas pressure is 8.0 in. W.C. and maximum inlet gas pres-
sure is 14.0 in. W.C.
CONDENSING
Model Number*
Maximum
GPM
Hot/Cold
Connections
Gas
Connection
Clearances (in.)
Approx
Shipping
Weight (lbs)
Top Bottom Side Front
T-H3-DV-N 10 3/4" NPT 3/4" NPT 12 12 3 4 71
T-H3-OS-N 10 3/4" NPT 3/4" NPT 36 12 3 24 69
ANSI Z21.10.3 • CSA 4.3
H3
Temperature
Settings
Built In / without remote 120°F (default) 140°F
With 100209924 remote (max. distance 400’ from heater, non-polarized 20 gauge wiring.)
100°F to 160 °F with 5°F intervals (13 options), 120°F Default Factory Setting
Electric 120 V
89 W / 0.74 A
(Operation)
4 W / 0.04 A
(Standby)
175 W / 1.5 A
(Freeze-Protection)
T-H3-DV T-H3-OS
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