Which robot vacuums wash their mops in hot water?
Wash water and drying, robot by robot.
The Roborock Saros 20 washes its mops in the hottest water we track, 212°F. Three more reach 176°F: the Saros 10R, the Saros 10 and the Dreame X50 Ultra. Roborock lists no hot water for the QV 35A, and eufy rinses the Omni S1 Pro’s pads in ozonated tap water.
| Robot | Mop washing water | Mop drying |
|---|---|---|
| Roborock Saros 20 | 212°F | Warm air, 131°F |
| Roborock Saros 10 | Up to 176°F (122, 140 or 176°F) | Heated air, 140°F |
| Roborock Saros 10R | 176°F | Warm air, 131°F |
| Dreame X50 UltraSee at Amazon (paid link) | Up to 176°F (four settings) | Hot air, 113°F |
| Narwal Freo Z10 TurboSee at Amazon (paid link) | Up to 167°F | Warm air, 104°F |
| MOVA P10 Pro UltraSee at Amazon (paid link) | 149°F (MOVA’s page also says 158°F) | Hot air, no temperature given |
| Dreame L40 Ultra | 149°F | Warm air, no temperature given |
| eufy Omni S2 | 140°F | Warm air, 131°F |
| eufy Omni S1 Pro | Ozonated tap water, no heating | Hot air, 122°F |
| Dreame D30 UltraSee at Amazon (paid link) | No temperature given (“high-temp” nozzles) | Unheated air |
| Roborock QV 35A | No hot water listed | Cold air |
All 11 are sold in the US and were FCC-authorized before the July 28, 2026 rule.
Why heat matters
Makers use hot water to loosen grease on the mop pads and warm air to dry them before they start to smell. The temperatures are the highest each maker lists.
Sources
- Roborock Saros 20: Roborock Saros 20 spec page; Roborock Saros 20 product page, read Oct 10, 2026
- eufy Omni S2: eufy Omni S2 feature page; eufy Omni S2 order page, read Oct 10, 2026
- Narwal Freo Z10 Turbo: Narwal Freo Z10 Turbo spec page; Narwal Freo Z10 Turbo product page, read Oct 10, 2026
- Dreame D30 Ultra: Dreame D30 Ultra product page, read Oct 10, 2026
- Roborock QV 35A: Roborock QV 35A product page, read Oct 10, 2026
- Roborock Saros 10R: Roborock Saros 10R US product page; Roborock Saros 10R spec page; Roborock Saros 10R feature page, read Oct 11, 2026, specs read Oct 12, 2026
- Roborock Saros 10: Roborock Saros 10 spec page; Roborock Saros 10 product page; Roborock Saros 10 feature page, read Oct 11, 2026, specs read Oct 12, 2026
- Dreame X50 Ultra: Dreame X50 Ultra US product page, read Oct 11, 2026, specs read Oct 12, 2026
- MOVA P10 Pro Ultra: MOVA P10 Pro Ultra US product page, read Oct 11, 2026, specs read Oct 12, 2026
- Dreame L40 Ultra: Dreame L40 Ultra US product page, read Oct 11, 2026, specs read Oct 12, 2026
- eufy Omni S1 Pro: eufy Omni S1 Pro US product page; eufy support: S1 Pro self-emptying; eufy support: S1 Pro mop washing and drying, read Oct 11, 2026, specs read Oct 12, 2026