Specification
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
1.1
1.7
2.4
3.7
5.0
5.6
7.5
POU 3.5 0.7
Model GPM Approx. Usage
Inlet Temp: 72°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
0.6
0.9
1.3
2.0
2.6
2.9
3.9
Model GPM Approx. Usage
Inlet Temp: 42°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
0.8
1.1
1.7
2.6
3.4
3.8
5.1
POU 3.5 0.5
Model GPM Approx. Usage
Inlet Temp: 57°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
1.0
1.4
2.1
3.2
4.3
4.9
6.5
POU 3.5 0.6
Model GPM Approx. Usage
Inlet Temp: 67°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
0.6
0.8
1.2
1.8
2.4
2.7
3.6
Model GPM Approx. Usage
Inlet Temp: 37°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
0.7
1.0
1.5
2.3
3.1
3.5
4.6
Model GPM Approx. Usage
Inlet Temp: 52°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
1.3
2.0
2.9
4.4
5.9
6.6
8.8
POU 3.5 0.9
Model GPM Approx. Usage
Inlet Temp: 77°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
0.6
0.9
1.4
2.1
2.8
3.2
4.2
Model GPM Approx. Usage
Inlet Temp: 47°F
POU 6
ECO 8
ECO 11
ECO 18
ECO 24
ECO 27
ECO 36
0.9
1.3
1.9
2.9
3.8
4.3
5.7
POU 3.5 0.6
Model GPM Approx. Usage
Inlet Temp: 62°F
Represents a hand sink
faucet open with a ow of
0.5 GPM
Represents a water-saver
shower head open with a
ow of 1.5 GPM
Results based on outlet
temperature of 105°F and
simultanerous operation of
indicated xtures. Map shows
general temperature zones,
actual inlet temperature may
be affected by local variations
and seasonal changes.
Applications
Average gallons per minute (GPM) based
on 2010 Plumbing Standards.
Water-Saver
Shower Head
Standard
Shower Head
Standard
Hand Sink
Kitchen Sink
Bath Tub
1.5 GPM
2.0 GPM
0.5 GPM
1.0-2.0 GPM
≥ 4.0 GPM
2
Match your location on the map, shown above, to the corresponding chart below to determine unit capacity.
1
The EcoSmart tankless water heater you
choose depends on your climate. Refer
to this chart to nd out which model best
suits your needs.
42°F
57°F
37°F
52°F
47°F 72°F
67°F
77°F
62°F
3 Steps for Endless Hot Water
Model kW Volts Required Wire Required Breaker Max. Power Weight Dimensions
POU 3.5 3.5 120 10 AWG 30A 29 4.0 lb 6" x 11" x 3"
POU 6 5.5 220 10 AWG 30A DP 25 4.0 lb 6" x 11" x 3"
ECO 8 8 240 8 AWG 40A DP 33 4.8 lb 11.5" x 8" x 3.75"
ECO 11 11.8 220 6 AWG 60A DP 54 6.5 lb 11.5" x 8" x 3.75"
ECO 18 18 240 (2) 8 AWG (2) 40A DP 75 11.3 lb 17" x 14" x 3.75"
ECO 24 24 240 (3) 8 AWG (3) 40A DP 100 13.8 lb 17" x 17" x 3.75"
ECO 27 27 240 (3) 8 AWG (3) 40A DP 113 13.8 lb 17" x 17" x 3.75"
ECO 36 36 240 (4) 8 AWG (4) 40A DP 150 17.4 lb 17" x 21" x 3.75"
3
Check electrical specications and dimensions in the chart below.