S-30L 220-240v Chronomite Instant-Flow SR Tankless Water HeaterUnlimited Hot Water 98% Energy EfficientCompact Size Easy to InstallLow Installation Cost Meets ADA Requirements Made in the USAProduct Listings UL, HUD, IAMPO Virtually Eliminates Alkali Calcification No pressure & temperature relief valve needed (unless required by local code)Temp Rise at 0.5 GPM 40°F Watts 3000 Volts 220-240 KW 3.0 Breaker 15 6-1/4x9-5/8x2-3/4 25 PSI Minimum operating pressure 150 PSI Maximum operating pressure140°F Maximum operating temapture Minimum operating flow rate 0.4 GPM