What it delivers
The WINTEMP WN11 Electric Tankless Water Heater is a compact electric tankless rated at 11 kW on 240 volts. Its listing gives a maximum flow of 2.6 GPM.
Worked out from its input, it delivers roughly 1.7 GPM when the water only has to rise 45°F, and 1.1 GPM at a 70°F winter rise: less than one 2 GPM shower in summer, less than one 2 GPM shower in winter. Check your house in the planner.
At 240 volts 11 kW is about 46 amps (the listing states 46 A). The maker calls for 1 x 50 Amp DP breakers. A licensed electrician confirms the panel, the service and the wire before it goes in.
Electric tankless units need no venting and no gas, and work best where inlet water stays mild, because every degree of rise costs flow.
Other listed details: features: LED Display, Overheat Protection, Temperature Lock; connections: 1/2" npt; material: Acrylonitrile Butadiene Styrene; model: WN11; warranty: 2 Year.
The listing gives dimensions of 9.7 in (W) x 14.1 in (H).
Warranty, per the listing: 2 Year.
Right unit for this house?
Install it when
- Light use in mild climates
- Homes with no gas service
Look at another unit when
- Panels without spare capacity
- More than 1 shower at once in cold winters
Strengths and trade-offs
Strengths
- 11 kW
- Up to 2.6 GPM
- No venting or gas line
- Breakers stated by the maker
Trade-offs
- Flow drops with cold inlet water
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 | WN11 | Retailer |
|---|---|---|
| Dimensions (seller) | 9.7"W x 14.1"H | Retailer |
| Features (seller) | LED Display, Overheat Protection, Temperature Lock | Retailer |
| Power | 11 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 2.6 GPM | Retailer |
| Material | Acrylonitrile Butadiene Styrene | Retailer |
| Warranty | 2 Year | Retailer |
| Amps (maker) | 46 A | Retailer |
| Breakers (maker) | 1 x 50 Amp DP breakers | Retailer |
| Connections | 1/2" npt | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- WINTEMP YQ-WN13K 13 kW Electric Tankless Water Heater
- MIZUDO Classic 14 Electric Tankless Water Heater
- SIVUATEK V7B-140B 14 kW Electric Tankless Water Heater
- Midea MHE13W2AWW 13 kW Electric Tankless Water Heater
Full electric tankless water heaters spec grid · Every WINTEMP unit in the catalog
Final verdict
A sensible compact electric tankless for light use in mild climates.
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