Lifetime warranty
12 kW electric tankless water heater provides efficient, continuous on demand hot water. Opti+ WiFi board and Opti+ App Included.
• Lifetime guarantee 25-year limited warranty, best warranty in the category
• Delivers continuous hot water for 1-shower 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, includes Wi-Fi plus Optimal plus app and the only water heater with patent pending ultrasonic flow sensing
• Opti12+'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
• Optimal app available on IOS and Android
• Plumbing specs are 3/4 in. npt connections, 0.25 gpm activation, 150 max psi
• Requires a 1 x DP 60 AMP breaker with #6 AWG wire and has a max draw of 57 amps
Lifetime warranty. 12+ kW electric tankless water heater provides efficient, continuous on demand hot water. The Opti12+ 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 (with Wi-Fi board upgrade) the Opti12 heats to within 1° of set temperature(plus or minus). Heat up to 2.5 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 Opti12 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 Additional Resources links.
Lifetime warranty
12 kW electric tankless water heater provides efficient, continuous on demand hot water. Opti+ WiFi board and Opti+ App Included.
• Lifetime guarantee 25-year limited warranty, best warranty in the category
• Delivers continuous hot water for 1-shower 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, includes Wi-Fi plus Optimal plus app and the only water heater with patent pending ultrasonic flow sensing
• Opti12+'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
• Optimal app available on IOS and Android
• Plumbing specs are 3/4 in. npt connections, 0.25 gpm activation, 150 max psi
• Requires a 1 x DP 60 AMP breaker with #6 AWG wire and has a max draw of 57 amps
Lifetime warranty. 12+ kW electric tankless water heater provides efficient, continuous on demand hot water. The Opti12+ 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 (with Wi-Fi board upgrade) the Opti12 heats to within 1° of set temperature(plus or minus). Heat up to 2.5 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 Opti12 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 Additional Resources links.
Full Specs
| Amperage (A) | 57 A |
| Application Type | Residential |
| Certifications and Listings | ETL Listed |
| Electricity Phase | Single Phase |
| Finish Family | White |
| First Hour of Delivery (gallons/hr) | 152 |
| Flow Rate @ 35°F Rise (gallons/min) | 2.54 gal (US)/min |
| Flow Rate @ 45° Rise (gallons/min) | 1.97 gal (US)/min |
| Flow Rate @ 55° Rise (gallons/min) | 1.61 gal (US)/min |
| Flow Rate @ 65° Rise (gallons/min) | 1.37 gal (US)/min |
| Heat Exchanger Warranty | 25 Year |
| Indoor/Outdoor | Indoor |
| Labor Warranty | No Warranty |
| Maximum Flow Rate (gallons per minute) | 2.54 |
| Maximum Temperature (F) | 140 F |
| Minimum Activation Rate (gpm) | 0.25 |
| Minimum Temperature (F) | 72 F |
| Number of Elements | 2 |
| Pack Size | 1 |
| Part Warranty | 25 Year |
| Product Depth (in.) | 3.75 in |
| Product Height (in.) | 12.75 in |
| Product Weight (lb.) | 8 lb |
| Product Width (in.) | 11.4 in |
| Required Volt Connection | 240 volt |
| Uniform Energy Factor | 0.99 |
| Water Connection Location | Bottom |
| Water Connection Size (in.) | 3/4 |
| Water Heater Features | Wall Mounted;Digital Display;Freeze Protection;Leak Detection;Vacation Mode |
| Water Heater Type | Electric |
| Wattage (watts) | 12000 W |
| Smart Home | Smart Home Enabled |
| Requires Hub? | No Hub Required |
| Smart Home Protocol | Wi-Fi |
| Works With | Proprietary App |
| Voice Control Requirements | No Voice Control |
| Power Options | Hardwired |
| Remote Access | Remote Access |
