Kohler PureWash E820 vs Kohler PureWash E930
Quick take: The Kohler PureWash E820 costs $750 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 |
|---|---|---|
| Price | $549 | $1,299 |
| Rating | 4.6★ (500) | 4.8★ (0) |
| 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 |
Pros & cons
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
- ✓Retailer aggregate ratings sit around 4.6 stars, with the remote repeatedly praised by reviewers with arthritis and limited mobility
- ✓Five heated-seat temperature settings offer finer control than the three-step seats common at this price
- ✓Quiet-close lid and low-slung styling blend with Kohler toilets — reviewers say it reads 'built-in' rather than aftermarket
- ✓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
- ✗Sitting area runs smaller than the lid suggests; several reviewers were surprised how compact the opening feels
- ✗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
- ✓Early owners rate it 4.8 stars, and Kohler's dealer network handles service no boutique importer can match
- ✓Slim low-profile design looks integrated rather than bolted-on, rare for auto-lid seats
- ✗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
- ✗Needs a GFCI outlet within reach, and the auto-lid draws standby power around the clock