What it delivers
The YONOOQ S313391 6.5 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 6.5 kW on 240 volts.
At a 45°F rise (mild inlet water to a 120°F set point) it holds about 1.0 GPM, less than one 2 GPM shower; in winter, at a 70°F rise, about 0.6 GPM, less than one 2 GPM shower. Size it to your fixtures.
At 240 volts 6.5 kW is about 27 amps. The maker calls for 30A Breaker. A licensed electrician confirms the panel, the service and the wire before it goes in.
Point-of-use units go under or beside one sink, where a short pipe run means hot water in seconds.
From the listing: material: Aluminum, Glass; model: S313391.
The listing gives dimensions of 2.34 in (W) x 9.05 in (H).
Right unit for this house?
Install it when
- One sink or a low-flow shower
- A far bathroom with a long wait for hot water
Look at another unit when
- Whole-house hot water
- Kitchen sinks at full flow in cold climates
Strengths and trade-offs
Strengths
- 6.5 kW
- No venting or gas line
- Breakers stated by the maker
Trade-offs
- Winter flow is much lower
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | S313391 | Retailer |
|---|---|---|
| Dimensions (seller) | 2.34"W x 9.05"H | Retailer |
| Features (seller) | High Water Pressure Protection, LED Display, Leak Detection, Lightweight, Low Water Flow Protection | Retailer |
| Power | 6.5 kW | Retailer |
| Voltage | 240 V | Retailer |
| Material | Aluminum, Glass | Retailer |
| Breakers (maker) | 30A Breaker | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
Final verdict
A solid point-of-use electric tankless for one sink or a low-flow shower.
Buy this unit
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