What it delivers
The Eemax HA008240 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 3.0 GPM.
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.
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.
Listed details: features: Energy Efficient, Vent Free; material: Metal; model: HA008240; warranty: 1 Year Parts, 5 Year Heat Exchanger.
The listing gives dimensions of 9.75 in (W) x 12 in (H), a weight of 7 lb and assembly guide in the box.
Warranty, per the listing: 1 Year Parts, 5 Year Heat Exchanger.
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 3.0 GPM
- No venting or gas line
Trade-offs
- Winter flow is much lower
- 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 | HA008240 | Retailer |
|---|---|---|
| Dimensions (seller) | 9.75"W x 12"H | Retailer |
| Features (seller) | Energy Efficient, Vent Free | Retailer |
| Power | 8 watts | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 3 GPM | Retailer |
| Product weight | 7 lb | Retailer |
| Material | Metal | Retailer |
| Warranty | 1 Year Parts, 5 Year Heat Exchanger | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
- Camplux ME40B 1.44 kW Point-of-Use Tankless Water Heater
- Westinghouse WET-08K-G 8 kW Point-of-Use Tankless Water Heater
- 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
Full point-of-use water heaters spec grid · Every Eemax 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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