KENUOS SY-15 Under Sink Instant Hot Water Heater: Upgraded pressure relief valve
Ever waited forever for hot water? The KENUOS 4 Gallon Under Sink Instant Hot Water Heater says, "Not on my watch." It’s all about getting you hot water in a snap—think 5 to 10 minutes—without the energy guilt, thanks to a whopping 95% thermal efficiency. And that polyurethane CFC-free filling? That’s like wrapping your water in a cozy, insulating blanket.
Here’s the lowdown on what makes this heater a champ:
- You call the shots on temperature, dialing it anywhere from a cozy 86°F to a steamy 149°F.
- Safety first, right? That’s why there’s an upgraded pressure relief valve that’s got your back.
- Durability? Check. The stainless steel tank is built like a tank (because it is one).
- Overheat protection and a leakproof design mean it’s smart enough to not throw a tantrum.
- And yes, that cord is UL certified—because we’re not about to cut corners on safety.
Whether it’s your kitchen, bathroom, or even your home on wheels, this heater’s flexible installation options mean it’ll fit right in. Literally.
- Adjustable temperature control
- Fast heating with 95% efficiency
- Durable stainless steel tank
- Safety features including overheat protection
- Upgraded pressure relief valve
General specs
- Brand: KENUOS
- Model: SY-15
- Seller: Amazon
- product_dimensions: 13.5"W x 13.8"H
- wattage: 1500 watts
- voltage: 120 Volts (AC)
- maximum_flow_rate: 0.45 Gallons Per Minute
- maximum_temperature: 149 Degrees Fahrenheit
- efficiency: 95%
- maximum_operating_pressure: 108 Pound per Square Inch
- mounting_type: Wall
- item_weight: 10 pounds
- country_of_origin: China
- First listed by seller: 6/5/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
#publicidad
Shipping options
United States
Video Reviews
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
KENUOS SY-15 Upgraded pressure relief valve
|
Join Show 1500W UL certified safety design
|
Instantaneous Electric Water Heater Rapid heating
|
Mini Kitchen Rapid Water Heater Instantaneous heating
|
Rinnai V53DeP Endless hot water flow
|
Rheem RTEX-13 External adjustable digital thermostatic control
|
|
| Brand | KENUOS | Join Show | Rinnai | Rheem | ||
| Model | SY-15 | 1500W | V53DeP | RTEX-13 | ||
| Color | ||||||
| Rating |
|
|
|
|
|
|
| Price | $142.99 | $24.67 | $83.48 | $58.99 | $669.50 | $274.50 |
| Seller | Amazon | Amazon | Gshopper | Gshopper | Amazon | Amazon |
| Update | June 27, 2025 | June 26, 2025 | July 25, 2024 | July 25, 2024 | June 27, 2025 | August 5, 2025 |
| product_dimensions | 13.5"W x 13.8"H | 13"W x 30"H | 1"W x 1"H | |||
| maximum_flow_rate | 0.45 Gallons Per Minute | 5.3 Gallons Per Minute | 4.8 Gallons Per Minute | |||
| efficiency | 95% | High | at least 99.8% energy efficient | |||
| mounting_type | Wall | Wall | Wall | |||
| item_weight | 10 pounds | 33 pounds | 3.96 pounds | |||
Under Sink Instant Hot Water Heater
Karthik J.
Kolkata
June 15, 2025
First impression: The packaging was fine, nothing fancy but it did the job. As a freelancer working from home in Kolkata, I value efficiency, and this heater delivers on that front. I did my research before buying, and it lives up to the hype. The water heats up reliably and stays hot without wasting energy, which is great for my high utility bills. I've only had it for a couple of weeks, but it's integrated seamlessly into my kitchen. Most likely, it will hold up well over time given the sturdy construction. Overall, a pragmatic choice for anyone looking to cut down on wait times for hot water.
- Pros: The hot water arrives super quickly, usually within minutes, which is a huge time-saver. I appreciate the ability to adjust the temperature to exactly what I need, from warm to very hot. The build feels solid and durable, and the safety features give me peace of mind. Installation was straightforward for someone like me who enjoys DIY projects, and it fits well under the sink without any issues.
- Cons: The initial warm-up time, while fast, might still feel a bit long if you're in a real hurry, but it's not a deal-breaker. The unit is a bit bulky, so you need to ensure you have enough space under your sink. No major complaints, but it's not perfect for every setup.