What it delivers
The Camplux TEW18 Electric Tankless Water Heater is a whole-house electric tankless rated at 18 kW on 240 volts.
Expect about 1.8 GPM with cold winter water (a 70°F rise) and 2.7 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 18 kW is about 75 amps. The maker calls for 2 x Double-pole 40AMP Breakers. The requirement calculator shows it at 208 V too; an electrician confirms the panel.
It skips venting entirely, but the amps are the hurdle: check the panel before the plumbing.
Listed details: connections: 3/4" npt; material: Alloy Steel; model: TEW18.
The listing gives dimensions of 13.12 in (W) x 17.12 in (H) and a weight of 17.5 lb.
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
- 18 kW
- No venting or gas line
- Breakers stated by the maker
Trade-offs
- Draws about 75 A
- 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 | TEW18 | Retailer |
|---|---|---|
| Dimensions (seller) | 13.12"W x 17.12"H | Retailer |
| Features (seller) | Instant hot water, LED Display, Leaking free and maintenance free heating element, Overheat Protection Instant hot water, LED Display, Leaking free and maintenance free heating element, Overheat Protection | Retailer |
| Power | 18 kW | Retailer |
| Voltage | 240 V | Retailer |
| Product weight | 17.5 lb | Retailer |
| Material | Alloy Steel | Retailer |
| Breakers (maker) | 2 x Double-pole 40AMP Breakers | Retailer |
| Connections | 3/4" npt | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- Orbek ET018 18 kW Electric Tankless Water Heater
- SIVUATEK TSB-180 18 kW Electric Tankless Water Heater
- VancEpic RE18K-C 18 kW Electric Tankless Water Heater
- WINTEMP WN18 Electric Tankless Water Heater
Full electric tankless water heaters spec grid · Every Camplux unit in the catalog
Final verdict
A well-specified whole-house electric tankless for one shower at a time in mild climates.
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