What it delivers
The WINTEMP WN08 8 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 8 kW on 240 volts. Its listing gives a maximum flow of 1.9 GPM.
Flow depends on how cold the incoming water is. Our estimate from its input: 1.2 GPM at a 45°F rise, falling to 0.8 GPM at 70°F, which is less than one 2 GPM shower on a cold-climate winter day. Try your own inlet temperature.
At 240 volts 8 kW is about 33 amps (the listing states 33 A). The maker calls for 1 x 40 Amp DP breakers. A licensed electrician confirms the panel, the service and the wire before it goes in.
Small units like this suit one sink or a low-flow shower close by; at a kitchen sink's 1.5 GPM the water won't rise as far.
Also on the listing: features: Child Lock, LED Display, Overheat Protection; connections: 1/2" npt; material: Acrylonitrile Butadiene Styrene; model: WN08; warranty: 2 Year.
The listing gives dimensions of 9.7 in (W) x 14.1 in (H) and a weight of 9.2 lb.
Warranty, per the listing: 2 Year.
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
- Up to 1.9 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 | WN08 | Retailer |
|---|---|---|
| Tank | 1.9 gal | Retailer |
| Dimensions (seller) | 9.7"W x 14.1"H | Retailer |
| Features (seller) | Child Lock, LED Display, Overheat Protection | Retailer |
| Power | 8 Microwatts | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 1.9 GPM | Retailer |
| Product weight | 9.2 lb | Retailer |
| Warranty | 2 Year | Retailer |
| Material | Acrylonitrile Butadiene Styrene | Retailer |
| Amps (maker) | 33 A | Retailer |
| Breakers (maker) | 1 x 40 Amp DP breakers | Retailer |
| Connections | 1/2" npt | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
- LECLOC C3500 3.5 kW Point-of-Use Tankless Water Heater
- Rheem RTEX-04T 3.5 kW Point-of-Use Tankless Water Heater
- Stiebel Eltron DHC 3-2 3.3 kW Point-of-Use Tankless Water Heater
- ThermoMate ET080 8 kW Point-of-Use Tankless Water Heater
Full point-of-use water heaters spec grid · Every WINTEMP unit in the catalog
Final verdict
A practical point-of-use electric tankless for one sink or a low-flow shower.
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