What it delivers
The SIVUATEK TSB-140 Air 14 kW Electric Tankless Water Heater is a compact electric tankless rated at 14 kW on 240 volts. Its listing gives a maximum flow of 3.3 GPM.
Expect about 1.4 GPM with cold winter water (a 70°F rise) and 2.1 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 240 volts 14 kW is about 58 amps. The maker calls for 1 x 60-amp circuit breaker. The requirement calculator shows it at 208 V too; an electrician confirms the panel.
No flue, no gas line and a compact box on the wall; the trade-off is that a cold winter inlet cuts its flow sharply.
Listed details: connections: 1/2" npt; material: Aluminum, Brass, Metal; model: TSB-140 Air.
The listing gives dimensions of 12.2 in (W) x 17.25 in (H) and a weight of 15 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
- 14 kW
- Up to 3.3 GPM
- No venting or gas line
- Breakers stated by the maker
Trade-offs
- Flow drops with cold inlet water
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 | TSB-140 Air | Retailer |
|---|---|---|
| Dimensions (seller) | 12.2"W x 17.25"H | Retailer |
| Features (seller) | Easy control, Intuitive display, LED Display, Overheat Protection, Touch sensor | Retailer |
| Power | 14 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 3.3 GPM | Retailer |
| Product weight | 15 lb | Retailer |
| Material | Aluminum, Brass, Metal | Retailer |
| Breakers (maker) | 1 x 60-amp circuit breaker | Retailer |
| Connections | 1/2" npt | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- ThermoMate ET110 11 kW Electric Tankless Water Heater
- ThermoMate ET140 14 kW Electric Tankless Water Heater
- Westinghouse WET011A0G 11 kW Electric Tankless Water Heater
- Titan N-100 10.8 kW Electric Tankless Water Heater
Full electric tankless water heaters spec grid · Every SIVUATEK unit in the catalog
Final verdict
A well-specified compact electric tankless for one shower at a time in mild climates.
Buy this unit
Our links open this exact model's product page. Prices and stock change; check what's included before you order.
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure