What it delivers
The WINTEMP WN13 13.8 kW Electric Tankless Water Heater is a compact electric tankless rated at 13.8 kW on 240 volts. Its listing gives a maximum flow of 3.1 GPM.
At a 45°F rise (mild inlet water to a 120°F set point) it holds about 2.1 GPM, 1 shower at 2 GPM; in winter, at a 70°F rise, about 1.3 GPM, less than one 2 GPM shower. Try your own inlet temperature.
At 240 volts 13.8 kW is about 58 amps (the listing states 58 A). The maker calls for 1 x 60A double-pole breaker. Whether your panel can carry it alongside heating and cooking loads is an electrician's call.
Electric tankless units need no venting and no gas, and work best where inlet water stays mild, because every degree of rise costs flow.
From the listing: features: LED Display, Overheat Protection, Temperature Lock; connections: 1/2" npt; material: Acrylonitrile Butadiene Styrene; model: WN13; warranty: 2 Year.
The listing gives dimensions of 9.7 in (W) x 14.1 in (H) and a weight of 9.9 lb.
Warranty, per the listing: 2 Year.
Right unit for this house?
Install it when
- One shower at a time 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
- 13.8 kW
- Up to 3.1 GPM
- 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 | WN13 | Retailer |
|---|---|---|
| Dimensions (seller) | 9.7"W x 14.1"H | Retailer |
| Features (seller) | LED Display, Overheat Protection, Temperature Lock | Retailer |
| Power | 13.8 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 3.1 GPM | Retailer |
| Product weight | 9.9 lb | Retailer |
| Warranty | 2 Year | Retailer |
| Material | Acrylonitrile Butadiene Styrene | Retailer |
| Amps (maker) | 58 A | Retailer |
| Breakers (maker) | 1 x 60A double-pole breaker | Retailer |
| Connections | 1/2" npt | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- Camplux TEW11N 11 kW Electric Tankless Water Heater
- Orbek HEU-ET014A5W-A5 14 kW Electric Tankless Water Heater
- SIVUATEK TSB-140 14 kW Electric Tankless Water Heater
- ThermoMate ET110HCUS 11 kW Electric Tankless Water Heater
Full electric tankless water heaters spec grid · Every WINTEMP unit in the catalog
Final verdict
A solid compact electric tankless for one shower at a time in mild climates.
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