Kohler PureWash E820 vs Kohler PureWash E930
Quick take: The Kohler PureWash E820 lists for about $749 less; the Kohler PureWash E820 heats water via hybrid heater while the Kohler PureWash E930 is tankless (instant heat).
| Spec | Kohler PureWash E820 | Kohler PureWash E930 |
|---|---|---|
| Approx. price | ~$550 | ~$1,299 |
| Type | Electric Bidet Seat | Electric Bidet Seat |
| Water heating | Hybrid Heater | Tankless (Instant Heat) |
| Controls | Wireless Remote | Wireless Remote |
| Toilet fit | Elongated only | Elongated only |
| Power | Needs dedicated GFCI outlet | Needs GFCI outlet within reach |
| Spray pressure | Adjustable water pressure | Adjustable w/ oscillate & pulse modes |
| Nozzle | Stainless wand with UV self-clean | UV self-cleaning stainless steel wand |
| Install | 30-45 min DIY | 30-45 min DIY |
| Warm water | yes | yes |
| Heated seat | yes | yes |
| Warm air dryer | yes | yes |
| Wireless remote | yes | yes |
| Night light | yes | yes |
| Deodorizer | yes | no |
| Self-cleaning nozzle | yes | yes |
| Feminine wash | yes | yes |
| Warranty | 1-year limited | 3-year limited |
What owners say
Kohler PureWash E820
- +Sold and serviced through Home Depot, Lowe's, and Ferguson — if anything goes wrong you're returning it to a store, not shipping to a bidet specialty importer
- +Hybrid heating (stored plus on-demand) avoids the hard 30-second warm-water cliff of pure tank rivals like the Bio Bidet BB-1000
- +UV light sterilizes the stainless wand automatically, a feature Bio Bidet reserves for its $599 Discovery DLS
- +Automatic deodorizer kicks in on sit-down — a feature the pricier Alpha JX2 and Coway 400S both skip
- +The remote is repeatedly praised by reviewers with arthritis and limited mobility — big buttons, no reaching for a side panel
- +The design is a proven decade-old platform (originally the C3-455), so real-world reliability data actually exists
- −Only a 1-year warranty — Kohler backs a $550 electronic seat for a third as long as Alpha (3yr) or the Discovery DLS (5yr)
- −The dryer is the weak spot; one Home Depot reviewer scored it '3.5 stars at full price, 5 at a discount' and most still finish with paper
- −Elongated bowls only — round-toilet owners are out entirely
- −The C3-455-to-PureWash rebrand makes research a mess: identical seats appear under two names and prices at different retailers
- −No user presets on the remote, so couples re-adjust temperature and pressure every visit — table stakes on the Alpha JX2 and Coway 400S
- −Spray tops out mild-to-moderate; nobody cross-shopping a Bio Bidet vortex wash will call this strong
- −At $540-600 street it's priced against the Discovery DLS and Toto C5, both of which out-feature it on paper
Kohler PureWash E930
- +Motion-activated lid opens as you approach and closes behind you - Toto charges S7A money for the same trick
- +Kohler Konnect app adds phone and voice control, the only seat we track you can command out loud
- +Tankless heating means genuinely endless warm water, unlike the hybrid tank in Kohler's own E820
- +Handheld remote with programmable user presets ends the couples' re-adjustment ritual
- +UV light sanitizes the stainless wand automatically between uses
- +Warm-air dryer, heated seat, and night light complete a true flagship feature list
- −No deodorizer at $1,299 - the $449 Alpha UX Pearl and Kohler's own $549 E820 both include one
- −List price sits in Toto S7A territory, and Kohler discounts far less often than Toto's constant sales
- −Thin review base so far - the 4.8 average rests on a fraction of the reviews behind Toto flagships
- −Elongated only; round-bowl owners are out entirely
- −Voice control needs the Konnect app, Wi-Fi setup, and an account - a lot of ceremony for a toilet seat
- −Motorized lid adds failure points, the same complaint pattern that dogs the Coway 500S
- −3-year warranty is identical to the $450 E525 - triple the spend buys no extra coverage
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