› shopping › product-reviews5 Best Mops 2022 | HGTV Oct 17, 2022 · The biggest difference between spray mops and steam mops is that spray mops do not use heat. Instead, water or a cleaning solution is added to a refillable tank on the spray mop which is then released by a trigger or button on the handle. Steam mops heat a reservoir of water past the boiling point that then releases through the mop head as steam.