What it delivers
The Stiebel Eltron 220816 3 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 3 kW on 110 volts.
Expect about 0.3 GPM with cold winter water (a 70°F rise) and 0.5 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 110 volts 3 kW is about 27 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: material: HAWA; model: 220816.
The listing gives dimensions of 1 in (W) x 1 in (H) and a weight of 3.4 lb.
Warranty, per the listing: Three year limited warranty - product must be installed by licensed personnel.
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 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 | 220816 | Retailer |
|---|---|---|
| Dimensions (seller) | 1"W x 1"H | Retailer |
| Power | 3 kW | Retailer |
| Voltage | 110 V | Retailer |
| Product weight | 3.4 lb | Retailer |
| Material | HAWA | Retailer |
| Warranty | Three year limited warranty - product must be installed by licensed personnel | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
- WINTEMP YQ-WN8K 8 kW Point-of-Use Tankless Water Heater
- WINTEMP WN08 8 kW Point-of-Use Tankless Water Heater
- LECLOC C3500 3.5 kW Point-of-Use Tankless Water Heater
- Rheem RTEX-04T 3.5 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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