What it delivers
The Stiebel Eltron Mini 2.5-1 2.4 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 2.4 kW on 120 volts. Its listing gives a maximum flow of 2.0 GPM.
At a 45°F rise (mild inlet water to a 120°F set point) it holds about 0.4 GPM, less than one 2 GPM shower; in winter, at a 70°F rise, about 0.2 GPM, less than one 2 GPM shower. Check your house in the planner.
At 120 volts 2.4 kW is about 20 amps. Whether your panel can carry it alongside heating and cooking loads is an electrician's call.
It's meant for a single fixture near the unit: it saves the wait for hot water there rather than heating a whole house.
From the listing: features: Requires 30A circuit breaker; material: Metal; model: Mini 2.5-1; warranty: Limited 7-year against leakage. See MFG for warranty details.
The listing gives dimensions of 3.25 in (W) x 6.5 in (H) and a weight of 3.4 lb.
Warranty, per the listing: Limited 7-year against leakage. See MFG for warranty details.
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
- 2.4 kW
- Up to 2.0 GPM
- 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 | Mini 2.5-1 | Retailer |
|---|---|---|
| Dimensions (seller) | 3.25"W x 6.5"H | Retailer |
| Features (seller) | Requires 30A circuit breaker | Retailer |
| Power | 2.4 kW | Retailer |
| Voltage | 120 V | Retailer |
| Max flow (maker) | 2 GPM | Retailer |
| Product weight | 3.4 lb | Retailer |
| Material | Metal | Retailer |
| Warranty | Limited 7-year against leakage. See MFG for warranty details | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
- ObigaVc ECO065 6.5 kW Point-of-Use Tankless Water Heater
- Goyappin LF-002A 5.5 kW Point-of-Use Tankless Water Heater
- Kweetle KT-24 6 kW Point-of-Use Tankless Water Heater
- YONOOQ S313391 6.5 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 solid point-of-use electric tankless for one sink or a low-flow shower.
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