What it delivers
The SIVUATEK V7B-240B 24 kW Electric Tankless Water Heater is a whole-house electric tankless rated at 24 kW on 240 volts. Its listing gives a maximum flow of 6.5 GPM.
At a 45°F rise (mild inlet water to a 120°F set point) it holds about 3.6 GPM, 1 shower at 2 GPM; in winter, at a 70°F rise, about 2.3 GPM, 1 shower at 2 GPM. Try your own inlet temperature.
At 240 volts 24 kW is about 100 amps. The maker calls for 3 x 40A Double Pole Circuit Breaker. Whether your panel can carry it alongside heating and cooking loads is an electrician's call.
It skips venting entirely, but the amps are the hurdle: check the panel before the plumbing.
From the listing: connections: 3/4" npt; material: Stainless Steel; model: V7B-240B.
The listing gives dimensions of 12.2 in (W) x 17.25 in (H) and a weight of 20 lb.
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 6.5 GPM
- No venting or gas line
- Breakers stated by the maker
Trade-offs
- Draws about 100 A
- Weak at a large winter rise
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 | V7B-240B | Retailer |
|---|---|---|
| Dimensions (seller) | 12.2"W x 17.25"H | Retailer |
| Features (seller) | ETL Listed, Instant and endless hot water supply for wholehouse use, stable temp output | Retailer |
| Power | 24 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 6.5 GPM | Retailer |
| Product weight | 20 lb | Retailer |
| Material | Stainless Steel | Retailer |
| Breakers (maker) | 3 x 40A Double Pole Circuit Breaker | Retailer |
| Connections | 3/4" npt | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- SIVUATEK TSB-270 27 kW Electric Tankless Water Heater
- ThermoMate ET180 18 kW Electric Tankless Water Heater
- APUS AP-ADSK-270G13 27 kW Electric Tankless Water Heater
- WINTEMP WN27 Electric Tankless Water Heater
Full electric tankless water heaters spec grid · Every SIVUATEK unit in the catalog
Final verdict
A solid whole-house electric tankless for one shower at a time in mild climates.
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