What it delivers
The Westinghouse WET-08K-G 8 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 8 kW on 240 volts.
Expect about 0.8 GPM with cold winter water (a 70°F rise) and 1.2 GPM when the inlet is milder (45°F rise); that is less than one 2 GPM shower in January. Try your own inlet temperature.
At 240 volts 8 kW is about 33 amps. The requirement calculator shows it at 208 V too; an electrician confirms the panel.
It's meant for a single fixture near the unit: it saves the wait for hot water there rather than heating a whole house.
Listed details: features: Smart WiFi Control; connections: 1/2" npt; material: Acrylonitrile Butadiene Styrene; model: WET-08K-G.
The listing gives dimensions of 2.48 in (W) x 8.07 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
- 8 kW
- No venting or gas line
Trade-offs
- Weak at a large winter rise
- Breaker needs not stated
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 | WET-08K-G | Retailer |
|---|---|---|
| Dimensions (seller) | 2.48"W x 8.07"H | Retailer |
| Features (seller) | Smart WiFi Control | Retailer |
| Power | 8 kW | Retailer |
| Voltage | 240 V AC | Retailer |
| Material | Acrylonitrile Butadiene Styrene | Retailer |
| Connections | 1/2" npt | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
- Westinghouse WET-6K5-D 6.5 kW Point-of-Use Tankless Water Heater
- Westinghouse WET-6K5-G 6.5 kW Point-of-Use Tankless Water Heater
- Bosch 7738007416 6.5 kW Point-of-Use Tankless Water Heater
- Bosch 7738007417 8.5 kW Point-of-Use Tankless Water Heater
Full point-of-use water heaters spec grid · Every Westinghouse unit in the catalog
Final verdict
A well-specified point-of-use electric tankless for one sink or a low-flow shower.
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