Optimal 220/240 Volt 18 Kw 3.7-GPM Smart Electric Tankless Water Heater
Lifetime warranty. 18 kW electric tankless water heater provides efficient, continuous on demand hot water. The Opti18 is the only water heater with patent pending ultrasonic flow sensing technology providing quiet, efficient and smart control. With advanced power modulation, built in diagnostics and wireless compatibility the Opti18 heats to within 1 degree of set temperature(+ or -). Heat up to 3.7 gallons per minute (gpm) to 105°F given an inlet water temperature of 72°F. It supports a 2-bathroom home in warm climates, or acts as a point of use in colder climates. Dry-fire protection prevents premature element failure for worry-free installation. The Opti18 comes with a 25-year residential warranty and a 5 year commercial warranty. COVERS ALL COMPONENTS and GROUND SHIPPING. For more information on installation, best practices, and the warranty, please use the links below.
Highlights
- Lifetime Guarantee – 25 Year Limited Warranty, best warranty in the category
- Delivers continuous hot water for 2 showers and 1 sink used concurrently (based on a 1.5 GPM showerhead and 0.5 GPM sink faucet in southern US locations)
- Smart Tankless Water Heater, WIFI + App Included, and only water heater with patent pending Ultrasonic flow sensing
- The Opti18’s compact modern design is wall mounted and frees up closet space for extra valuable storage
- Optimal products come with freeze protection, leak detection and vacation mode protection
- Opti model products come with advanced diagnostics, no moving parts and easily replaced heating elements
- Model includes Wi-Fi
Specifications
| General | |||
|---|---|---|---|
| Color/Finish Family | White | Type | Tankless |
| Dimensions | |||
|---|---|---|---|
| Depth (Inches) | 3.5 | Water Connection Size | 3/4-in |
| Family Size | 4 | Weight (lbs.) | 12 |
| Height (Inches) | 16.9 | Width (Feet) | 11.4 |
| Features | |||
|---|---|---|---|
| Annual Fuel Utilization Efficiency % (Percentage) | 0 | Overheat Shut-Off | Yes |
| Display Type | Digital | Point of Use | No |
| For Use with Mobile Homes | No | Power Source | Electric |
| For Use with RVs | No | Scale Prevention | No |
| Grade | Commercial/Residential | Super High Efficiency | Yes |
| Grid Capable | No | Uniform Energy Factor | 0.99 |
| High Efficiency | Yes | Use Location | Indoor |
| Installation Type | Wall mount | Voltage (Volts) | 240 |
| Leak Detection | Yes | Water Connection Location | Bottom |
| Maximum Gallons per Minute | 3.5 | Water Heater Style | Short |
| Maximum Temperature (Fahrenheit) | 140 | Wattage (Watts) | 18000 |
| Minimum Temperature (Fahrenheit) | 72 |
| Compatibility | |||
|---|---|---|---|
| App Compatibility | Yes | Works with Android | Yes |
| Bluetooth Compatibility | No | Works with Apple HomeKit | No |
| Smart Compatible | Yes | Works with iOS | Yes |
| Wi-Fi Compatibility | Yes | Works with SmartThings | No |
| Works with Amazon Alexa | No | Works with the Google Assistant | No |
| Certifications | |||
|---|---|---|---|
| CA Residents: Prop 65 Warning(s) | No | Safety Listing | ETL safety listing |
| ENERGY STAR Certified | No | AHRI Certified | No |
| Miscellaneous | |||
|---|---|---|---|
| UNSPSC | 40101800 |
| Brand | Optimal |
|---|
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