What it delivers
The AIRTHEREAL EVT-27K 27 kW Electric Tankless Water Heater is a whole-house electric tankless rated at 27 kW on 240 volts. Its listing gives a maximum flow of 0.5 GPM.
Worked out from its input, it delivers roughly 0.5 GPM when the water only has to rise 45°F, and 0.5 GPM at a 70°F winter rise: less than one 2 GPM shower in summer, less than one 2 GPM shower in winter. Try your own inlet temperature.
At 240 volts 27 kW is about 112 amps. Whether your panel can carry it alongside heating and cooking loads is an electrician's call.
Electric tankless units need no venting and no gas, and work best where inlet water stays mild, because every degree of rise costs flow.
Other listed details: material: Stainless Steel; model: EVT-27K.
The listing gives dimensions of 3.43 in (W) x 12.2 in (H), a weight of 19 lb and item in the box.
Right unit for this house?
Install it when
- Light use 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
- 27 kW
- Up to 0.5 GPM
- No venting or gas line
Trade-offs
- Draws about 112 A
- 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 | EVT-27K | Retailer |
|---|---|---|
| Dimensions (seller) | 3.43"W x 12.2"H | Retailer |
| Features (seller) | Dry Combustion Protection, High Temperature Protection, Instant Hot Water, LED Display, Overheat Protection Dry Combustion Protection, High Temperature Protection, Instant Hot Water, LED Display, Overheat Protection | Retailer |
| Power | 27 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 0.48 GPM | Retailer |
| Product weight | 19 lb | Retailer |
| Material | Stainless Steel | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
Final verdict
A sensible whole-house electric tankless for light use in mild climates.
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