BOSCH ES4 Electric Mini-Tank Water Heater: 4-gallon capacity
Say goodbye to waiting around for hot water with the BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4). It's like having a personal hot water butler, but way more compact and it fits right under your sink. Perfect for those 'I need hot water now' moments, this little powerhouse hooks up to a standard 120-volt outlet or plays nice with your existing system.
Here's the scoop on what makes it stand out: a glass-lined tank that keeps heat in like a thermos (but way tougher), and a fast recovery rate because nobody likes waiting. Adjusting the temp is a breeze with the external dial, and you can mount it just about anywhere—wall, shelf, or floor. Plus, it's got a safety valve because, well, safety first.
It's not just smart; it's the right size too: 13.75"W x 13.75"H x 13.5"D and weighs about as much as a big bag of dog food (17.3 lbs, if you're curious).
Ideal for kitchens, bathrooms, or anywhere you're tired of the cold shoulder from your faucet.
Features
- 120-volt outlet compatible
- Glass-lined tank
- Fast recovery rate
- Temperature control dial
- Wall, shelf, or floor mountable
- 4-gallon capacity
General specs
- Brand: BOSCH
- Model: ES4
- Seller: Amazon
- ID: B0148O65IE
- product_dimensions: 13.75"W x 13.75"H
- color: White
- wattage: 1440 watts
- voltage: 120 Volts
- maximum_flow_rate: 0.11 Gallons Per Minute
- maximum_temperature: 140 Degrees Fahrenheit
- heat_output: 1440 Watts
- efficiency: 98% thermal efficiency
- style: modern
- maximum_operating_pressure: 150 Pound per Square Inch
- mounting_type: Wall
- item_weight: 17.3 pounds
- country_of_origin: USA
- warranty_description: 6 year warranty on unit, 2 year warranty on parts
- First listed by seller: 5/2/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Price History for seller Amazon
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
BOSCH ES4 4-gallon capacity
|
BOSCH ES2.5 2.5 gallon point-of-use mini-tank
|
EcoSmart ECO 11
|
GE GE06P08BAR Compact design for limited spaces
|
Rheem RTEX-24
|
HNK D3548A11 Instant hot water heating
|
|
| Brand | BOSCH | BOSCH | EcoSmart | GE | Rheem | HNK |
| Model | ES4 | ES2.5 | ECO 11 | GE06P08BAR | RTEX-24 | D3548A11 |
| Color | ||||||
| Rating |
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| Price | $329.61 | $209.65 | $189.99 | $155.10 | $464.99 | $139.98 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 |
| product_dimensions | 13.75"W x 13.75"H | 13.75"W x 13.75"H | 17.25"W x 17.75"H | 17.63"W x 18.25"H | 9.13"W x 7.59"H | |
| wattage | 1440 watts | 1440 watts | 24 KW | 3500 watts | ||
| voltage | 120 Volts | 120 Volts (DC) | 120 Volts | 240 Volts | 110 Volts | |
| maximum_flow_rate | 0.11 Gallons Per Minute | 5.9 Gallons Per Minute | 1.9 Liters Per Minute | |||
| maximum_temperature | 140 Degrees Fahrenheit | 140 Degrees Fahrenheit | 140 Degrees Fahrenheit | 131 Degrees Fahrenheit | ||
| heat_output | 1440 Watts | 2.5 Gallons | 140 Degrees Fahrenheit | 24 Kilowatts | ||
| efficiency | 98% thermal efficiency | 98% | 99.8% Energy efficient | |||
| style | modern | Indoor Installation | Water Heater | |||
| maximum_operating_pressure | 150 Pound per Square Inch | 150 Pound per Square Inch | 150 | 6 Bars | ||
| mounting_type | Wall | Wall | Wall or Floor | Wall | Wall | |
| item_weight | 17.3 pounds | 17.8 pounds | 4.29 pounds | |||
| warranty_description | 6 year warranty on unit, 2 year warranty on parts | 6 year warranty on unit, 2 year warranty on parts | 8 years replacement warranty | |||
| special_feature | Adjustable Thermostat | LED Display | Temperature Lock, Dry Combustion Protection, Overheat Protection, LED Display, Low Water Flow Protection | |||
| is_electric | Yes | Yes | Yes | |||
