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Item #:
208358803
opti18 opti 18kW 240V 3.7GPM Electric Tankless Water Heater
Item #:
208358803
SCR 11663
Price Details
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*All items will import from US
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Imported from USA store
Order now and get it around Sunday, August 16
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What Stands Out
Energy Efficiency
Utilizes advanced technology to heat water instantaneously, leading to lower energy consumption and reduced utility bills compared to traditional tank heaters.
Compact Design
Its sleek and space-saving design allows for easy installation in tight areas, making it perfect for modern homes and apartments.
Consistent Hot Water
Delivers a continuous flow of hot water at 2.5 GPM, ensuring comfort during multiple uses without waiting for reheating, ideal for families with high hot water demands.
Product Details
| Power Source | ac |
| Special Features | Anti-Freezing Protection, Dry Combustion Protection, Integrated Error Code Indicator, Overheat Protection, Self-Modulating |
| Wattage | 18000 watts |
| Flow Rate | 3.7 Gallons Per Minute |
| Maximum Temperature | 105 Degrees Fahrenheit |
| Maximum Pressure | 150 Pound per Square Inch (381 cm) |
| Mount Type | Wall |
| Is Electric | Yes |
| Capacity | 3.5 gallons |
| Item Dimensions W x H | 11.4"W x 16.9"H (29 cm) |
| Color | White |
| Style Name | 18Kw |
| Brand Name | Optimal |
| Model Number | opti18 |
| Manufacturer | Its Optimal |
| UPC | 860010792612 |
| Global Trade Identification Number | 00860010792612 |
| Included Components | Tankless Water Heater, Owners Manual, Mounting Template, Mounting Hardware |
| Manufacturer Part Number | opti18 |
| Material Type | Aluminum, Brass, Copper |
| Brand | Optimal |
| Product Dimensions (L x W x H) | 11.4"W x 16.9"H (29 cm) |
| Special Feature | Anti-Freezing Protection, Dry Combustion Protection, Integrated Error Code Indicator, Overheat Protection, Self-Modulating See more |
Who Should Buy?
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Small Apartments
Ideal for small living spaces needing instant hot water without taking up significant storage space.
-
Eco-Conscious Users
Perfect for users seeking energy-efficient solutions to reduce energy costs and carbon footprint.
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Low-Flow Needs
Suitability for households with lower hot water demands, like single showers or sinks.
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Large Families
May struggle to meet hot water demands for multiple simultaneous uses in larger households.
Product Description
opti18 opti 18kW 240V 3.7GPM Electric Tankless Water Heater
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
How much can I save on my water heating costs?
Answer: You can save up to 50% on your water heating costs with our product. -
Question:
Is the installation process difficult?
Answer: No, the installation is straightforward with standard 3/4 inch water connections and no venting needed. -
Question:
What if I need help with my water heater?
Answer: We offer in-house expert support to assist you with any water heating questions.
Optimal Water Heaters opti18 Editorial Review
The Opti 12kW 208V 2.5GPM Electric Tankless Water Heater receives high praise from customers for its efficient performance, reliable design, and ease of use. Users highlight the rapid installation process and the straightforward programming interface, making it accessible for those who may not have extensive technical skills. One recurring theme in reviews is the unit’s capacity to provide instant hot water without the waiting time associated with traditional tank water heaters, a feature that significantly enhances user satisfaction. Customers appreciate the energy efficiency of this model, pointing out that it only heats water when needed, leading to noticeably lower electricity bills. The powerful output ensures that there is ample hot water available for multiple daily tasks such as dishwashing and showering without any concerns of running out. Moreover, the strong warranty and the commendable customer service provided by the Optimal brand are frequently mentioned in reviews, with users expressing relief at being able to connect with knowledgeable representatives directly, without the hassle of overseas call centers. However, there are minor suggestions for improvement, such as adjusting the design for better spacing between the cold water intake and electricity inlet. Nevertheless, the overall sentiment remains overwhelmingly positive, with many customers expressing regret for not switching to a tankless system sooner. ###
Customer Reviews & Ratings
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Pros
- Quick installation and simple programming.
- Efficient energy usage and cost savings on electricity bills.
- Abundant instant hot water supply.
- Well-built, durable design. ###
Cons
- Suggested redesign for improved spacing between components.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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SCR 11663
Order now and get it around Sunday, August 16
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Up to 50% savings on water heating costs.
- Reclaim valuable closet storage space.
- Unique ultrasonic flow technology exclusive to this design.
- Expert in-house support for all heating queries.
- Advanced diagnostics for easy troubleshooting.
- No venting required for straightforward installation.
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