What it delivers
The FOGATTI ET24 Electric Tankless Water Heater is a whole-house electric tankless rated at 24 kW on 240 volts. Its listing gives a maximum flow of 6.0 GPM.
Flow depends on how cold the incoming water is. Our estimate from its input: 3.6 GPM at a 45°F rise, falling to 2.3 GPM at 70°F, which is 1 shower at 2 GPM on a cold-climate winter day. Check your house in the planner.
At 240 volts 24 kW is about 100 amps. 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.
Also on the listing: material: Housing material is iron; model: ET24.
The listing gives dimensions of 3.9 in (W) x 17.1 in (H) and water-heaters in the box.
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
- 24 kW
- Up to 6.0 GPM
- No venting or gas line
Trade-offs
- Draws about 100 A
- 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 | ET24 | Retailer |
|---|---|---|
| Dimensions (seller) | 3.9"W x 17.1"H | Retailer |
| Power | 24 kW | Retailer |
| Voltage | 240 V | Retailer |
| Material | Housing material is iron | Retailer |
| Max flow (maker) | 6.0 | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- ThermoMate ET240 24 kW Electric Tankless Water Heater
- WINTEMP WM18V 18 kW Electric Tankless Water Heater
- WINTEMP YQ-WN27K 27 kW Electric Tankless Water Heater
- Ranein RE27K 27 kW Electric Tankless Water Heater
Full electric tankless water heaters spec grid · Every FOGATTI unit in the catalog
Final verdict
A practical whole-house electric tankless for one shower at a time in mild climates.
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