Kohler’s reputation in bath design is well-earned. The Invigoration 32327-NA brings that same precision to electric shower heating, but with a specific focus on performance over aesthetics. At 11kW, this system is built for consistent, powerful hot water delivery in residential setups where tankless electric makes sense.

The 11kW output handles simultaneous demand better than lower-wattage units. Water temperature stays stable even when other fixtures are running. Installation requires a dedicated 240V circuit, so it’s not a DIY swap for older electric showers. Once wired, the response time is immediate. You get hot water within seconds, not minutes. That matters in colder climates or for households with back-to-back showers.

The trade-off is straightforward. This unit demands proper electrical infrastructure. Older homes may need a panel upgrade. But for new builds or renovations where you want to ditch a tank heater, the Invigoration delivers reliable, on-demand heat without the bulk. It’s a solid, no-nonsense solution for anyone who prioritizes consistent temperature over flashy controls.