What it delivers
The Stiebel Eltron DHC 4-2 Classic 3.8 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 3.8 kW on 240 volts. Its listing gives a maximum flow of 0.3 GPM.
Expect about 0.3 GPM with cold winter water (a 70°F rise) and 0.3 GPM when the inlet is milder (45°F rise); that is less than one 2 GPM shower in January. Size it to your fixtures.
At 240 volts 3.8 kW is about 16 amps. Whether your panel can carry it alongside heating and cooking loads is an electrician's call.
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: material: Copper; model: DHC 4-2 Classic.
The listing gives dimensions of 14.18 in (W) x 7.93 in (H), a weight of 4.6 lb and heater in the box.
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
- 3.8 kW
- Up to 0.3 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 | DHC 4-2 Classic | Retailer |
|---|---|---|
| Tank | 0.13 gal | Retailer |
| Dimensions (seller) | 14.18"W x 7.93"H | Retailer |
| Features (seller) | Energy Efficiency, Quiet Operation, Safety High Limit Switch, Copper-Clad Heating Element, Point-of-Use Installation Energy Efficiency, Quiet Operation, Safety High Limit Switch, Copper-Clad Heating Element, Point-of-Use Installation | Retailer |
| Power | 3.8 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 0.32 GPM | Retailer |
| Product weight | 4.6 lb | Retailer |
| Material | Copper | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
- GE GE04SNLPDG 3.5 kW Point-of-Use Tankless Water Heater
- Rheem RTEX-06T 6.5 kW Point-of-Use Tankless Water Heater
- Stiebel Eltron Mini 4 3.5 kW Point-of-Use Tankless Water Heater
- WINTEMP WM07V 7 kW Point-of-Use Tankless Water Heater
Full point-of-use water heaters spec grid · Every Stiebel Eltron 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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