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Previous page Next page 1 LED Display 2 Self-adjustment function 3 Instant Endless Hot Water Previous page Next page 1 Unique Tech 2 Durable Material 3 Save Space 4 Long Lifespan Previous page Next page 1 Water Temperature Map 2 Installation Guide 3 Package Includes What amp breakers are required for MIZUDO 18kW Electric tankless water heater? It requires a 2x 40 AMP breaker and 2 x 8 AWG gauge wire. How much flow is required to activate heating element ? The 18 kW Electric Tankless Water Heater typically requires a minimum flow rate of 0.66 gallons per minute (GPM) to activate the heating element. What's the gpm rating? With a maximum flow rate of 4.2 GPM, MIZUDO 18kW electric tankless water heater provides continuous hot water for up to 2-3 points of use. MIZUDO Electric Water Heater Water Heater 18kW Add to Cart Water Heater 6.5kW Add to Cart Water Heater 8kW Add to Cart Water Heater 11kW Add to Cart Water Heater 14kW Add to Cart Water Heater 24kW Add to Cart Water Heater 27kW Add to Cart Price $289.99$289.99 $159.99$159.99 $189.99$189.99 $199.99$199.99 $219.99$219.99 $339.99$339.99 $379.99$379.99 Wattage 18kW 6.5kW 8kW 11kW 14kW 24kW 27kW GPM (Max.) up to 4.2 up to 1.55 up to 1.9 up to 2.7 up to 3.6 up to 5.6 up to 6.3 Fixtures Served (Max.) 3-4 point of use (whole house) 1 point of use 1-2 point of use 1-2 point of use 2-3 point of use 3-4 point of use (whole house) 3-4 point of use (whole house) Voltage 240V 240V 240V 240V 240V 240V 240V Max Amperage 75A 27A 34A 46A 59A 100A 113A Required Breaker 2x40AMP DP 1x32AMP DP 1x40AMP DP 1x50AMP DP 1x60AMP DP 3x40AMP DP 3x40AMP DP Wire Gauge 2 X 8AWG 1 X 10AWG 1 X 10AWG 1 X 8AWG 1 X 6AWG 3 X 8AWG 3 X 8AWG Dimensions 17.05" x 12.91" x 3.58" 12.8" x 8.6" x 2.3" 14.3" x 9.57" x 2.8" 14.3" x 9.57" x 2.8" 14.3" x 9.57" x 2.8" 17.05" x 12.91" x 3.58" 17.05" x 12.91" x 3.58" Weight 19.2 lbs 7.1 lbs 10.5 lbs 10.8 lbs 12.2 lbs 19.2 lbs 19.2 lbs Installation Wall-Mounted Wall-Mounted Wall-Mounted Wall-Mounted Wall-Mounted Wall-Mounted Wall-Mounted Water Connections 3/4" NPT 1/2" NPT 1/2" NPT 1/2" NPT 1/2" NPT 3/4" NPT 3/4" NPT Output water temp. range 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F
The MIZUDO 18kW tankless water heater features a unique design that separates internal water and electrical circuits, eliminating the risk of electric leakage and scale buildup. Certified by ETL, it offers multiple safety protections, including leakage, overheating, high pressure, and dry-fire prevention. Enjoy peace of mind with every use.
With an impressive 98% heating efficiency, the MIZUDO 18kW hot water heater delivers hot water above 120℉ in just seconds—no preheating required. Perfect for families, it ensures an uninterrupted supply of hot water for long showers. It’s also ideal for offices, bars, salons, and other commercial spaces.
Say goodbye to bulky water heaters! MIZUDO 18kW tankless water heater measures only 17.05" x 12.91" x 3.58", making it a space-saving solution for tight spots like cabinets, bathrooms, garages, or basements. Its sleek appearance blends well with any environment.
Equipped with a LED touch display, the MIZUDO 18kW water heater allows you to easily customize your preferred water temperature.This model is well suited for heating up to 3-Gallon Per Minute, which is the equivalent of one shower head (with a 2 gpm flow) and one faucet with a low inlet water temperature of 67 Degree F.
Make sure to install this water heater correctly 18kW at 240V draw max 75A; Required breaker 2x40AMP; Wire gauge 2 X 8AWG; Water connection 3/4" NPT. Maximum Flow Rate：4.2 GPM; Min. Water Flow：0.66GPM/min. Simple to install and operate, it’s designed for hassle-free use, bringing convenience and comfort to your daily routine.
