- Hot Water On Demand—When sized correctly, delivers on-demand, continuous hot water
- Worry-Free Installation—Dry-fire protection features prevent premature element failure for care-free installation
- Flexible Design—Includes top and front water connections with zero clearance requirements and no venting required for convenient wall mounting
- Standard Heating Elements—Offers standard heating elements for simple maintenance and convenient parts replacement
- Compact Design—Space saving design lets users save valuable storage space and mount in out-of-the-way areas
- Self-Diagnostic Features—Built-in self diagnostic and leak detection shutdown features provide added peace of mind
- User-Friendly Display—Digital control makes it easier to set to preferred water temperature, operating modes and communicate diagnostics
- Scale Reduction—Built-in scale reduction technology protects water heater from hard water scale build-up and extends unit life
- Peace of Mind—5-year limited tank and 1-year parts warranty
The State ProLine® R4LS-220E 240V / 22 kW 4-Chamber Electric Tankless Water Heater can provide continuous hot water when sized appropriately. State's Electric Tankless water heaters only heat water when needed, leading to potential energy and utility bill savings.
These models are easy to install and save valuable storage space—they can be wall mounted, using standard 3/4-in NPT water connections and do not require venting. Designed with a soft start, electric tankless water heaters produce a soft electric draw when powering on, reducing light dimming impact.
Electric tankless water heaters typically require greater electrical supply capacity than standard tank-type models. This model requires 240 volts, 92 amps, two 50-amp double-pole breakers and #6 AWG wire size. Please check with your local professional to ensure your home's power supply and breaker panel can support this model.
State ProLine® water heaters are residential products built to commercial-grade standards and are only available for purchase through professional wholesalers and contractors.
