H2O · 1 model
H2O water coolers
Every H2O water cooler certified under ENERGY STAR and listed for the US market, fastest first. Each model page has the full certified specs and comparable machines from other makers.
| Model | Type | Type | Daily energy use |
|---|---|---|---|
| H2O-FLOW-UV | Tap Water Source | Hot and Cold | 0.63 kWh/day |
Source: ENERGY STAR certification data, US EPA. Data build 2026-09-29. Brand names are as the maker certified them, with obvious variant spellings merged.