Electrical Requirements
Before purchasing an EcoSmart electric tankless water heater, please make sure that your home has sufficient electrical capacity for your desired model, or that you have taken note of any upgrades that may be required. In order to ensure your safety and qualification for the limited lifetime warranty, a licensed professional must install your system.
Please refer to the chart below for electrical requirements:
| Model | Voltage | Maximum Amperage | Recommended Breaker | Recommended Household Electric Service | Recommended Minimum Wire Gauge |
|---|---|---|---|---|---|
| ECOS 27 | 240V | 112.5 Amps | 3 x 40 Amps DP | 200 Amps | 1x #8 AWG |
| ECOS 18 | 240V | 75 Amps | 2 x 40 Amps DP | 150 Amps | 1x #8 AWG |
| ECOS 12 | 240V | 50 Amps | 1 x 50 Amps DP | 100 Amps | 1x #8 AWG |
| ECO 36 | 240V | 150 Amps | 4 x 40 Amps DP | 300 Amps | 4x #8 AWG |
| ECO 27 | 240V | 112.5 Amps | 3 x 40 Amps DP | 200 Amps | 3x #8 AWG |
| ECO 24 | 240V | 100 Amps | 3 x 40 Amps DP | 200 Amps | 3x #8 AWG |
| ECO 18 | 240V | 75 Amps | 2 x 40 Amps DP | 150 Amps | 2x #8 AWG |
| ECO 11 | 240V | 57 Amps | 1 x 60 Amps DP | 125 Amps | 1x #6 AWG |
| ECO 8 | 240V | 33 Amps | 1 x 40 Amps DP | 100 Amps | 1x #8 AWG |
| POU 6 | 240V | 29 Amps | 1 x 30 Amps | 100 Amps | 1x #10 AWG |
| POU 6T | 240V | 27 Amps | 1 x 30 Amps DP | 100 Amps | 1x #10 AWG |
| POU 4T | 120V | 29 Amps | 1 x 30 Amps SP | 100 Amps | 1x #10 AWG |
| POU 3.5 | 120V | 29 Amps | 1 x 30 Amps | 100 Amps | 1x #10 AWG |