Optimal Opti27Plus 208/220/240-volt 27 Kw 4.5-GPM Wi-fi Enabled Smart Electric Tankless Water Heater
Lifetime warranty. 27+ kW electric tankless water heater provides efficient, continuous on demand hot water. The Opti27+ is the only water heater with patented ultrasonic flow sensing technology providing quiet, efficient and smart control. With advanced power modulation, built in diagnostics, WiFi Enabled, IoS / Android app controlled, the Opti27plus heats to within 1° of set temperature (plus or minus). Heat up to 4.5 gallons per minute (gpm) to 105°F given an inlet water temperature of 72°F. It supports a 3 – 4 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 Opti27plus 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.
Highlights
- Lifetime guarantee 25-year limited warranty, best warranty in the category
- Delivers continuous hot water for 3-showers and 2-sink and 1-Appliance used concurrently (based on a 1.5 GPM showerhead, 1.0 GPM appliance and 0.5 GPM sink faucet in southern US locations)
- Smart tankless water heater, Wi-Fi plus app compatible and only water heater with patented ultrasonic flow sensing
- Opti27 plus ‘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
- Plumbing specs are 3/4 in NPT connections, 0.25 gpm activation, 150 max PSI
- Requires 3 x DP 40 AMP breakers with 8 AWG wire and has a max draw of 120
Specifications
| General |
| Series Name | Plus+ | Use Location | Indoor |
| Type | Tankless | Installation Type | Wall mount |
| Power Source | Electric | Ignition Type | Electric |
| Grade | Commercial/Residential | | |
| Dimensions |
| Depth (Inches) | 3.5 | Water Connection Size | 3/4-in |
| Family Size | 5 | Weight (lbs.) | 14 |
| Height (Inches) | 16.5 | Width (Inches) | 11.4 |
| Features |
| Grid Capable | No | Scale Prevention | No |
| High Efficiency | Yes | Super High Efficiency | Yes |
| Hub Required | No | Uniform Energy Factor | .99 |
| Maximum Gallons per Minute | 4.5 | Voltage (Volts) | 240 |
| Maximum Temperature (Fahrenheit) | 140 | Water Connection Location | Bottom |
| Minimum Temperature (Fahrenheit) | 80 | Water Heater Style | Short |
| Overheat Shut-Off | Yes | Wattage (Watts) | 27000 |
| Point of Use | No | | |
| Compatibility |
| App Compatibility | Yes | Works with Apple HomeKit | No |
| Bluetooth Compatibility | No | Works with iOS | Yes |
| Smart Compatible | Yes | Works with SmartThings | No |
| Wi-Fi Compatibility | Yes | Works with the Google Assistant | No |
| Works with Amazon Alexa | No | For Use with Mobile Homes | No |
| Works with Android | Yes | For Use with RVs | No |
| Warranty |
| Warranty | 25-year limited | | |
| Certifications |
| CA Residents: Prop 65 Warning(s) | No | Safety Listing | ETL safety listing |
| ENERGY STAR Certified | No | AHRI Certified | No |
| Miscellaneous |
| UNSPSC | 40101800 | | |
