Bosch ES4 Tronic 3000 T 4-Gallon Electric Mini-Tank Water Heater – On-Demand Hot Water, Shelf/Wall/Floor Mount

Efficient hot water right where you need it

The Bosch ES4 Tronic 3000 T is a compact 4-gallon electric mini-tank designed to live under a sink or in a convenient space. With a glass-lined tank and 98% thermal efficiency, it minimizes heat loss while delivering reliable warmth for everyday tasks. Its balanced dimensions (13.75" W x 13.75" H x 13.5" D) and modest 17.3 lb weight keep installation versatile without dominating a room. The unit can operate as a standalone 120-volt appliance or be wired inline with a larger hot water source for on-demand use, helping hot water feel more immediate at the tap.

An external temperature control dial puts easy tuning at your fingertips, while a temperature-and-pressure relief valve adds a practical layer of safety. Its clean, modern exterior is designed to fit into visible locations, whether mounted on a shelf, wall, or floor with the included bracket. This makes it a practical option for kitchens, bathrooms, or utility areas where hot water is welcomed exactly where you want it.

Key benefits at a glance

• 4-gallon capacity ideal for quick, small-volume hot water at the point of use
• High 98% thermal efficiency reduces heat loss during operation
• Glass-lined tank for durability and long service life
• Flexible installation: plug-in 120V or inline with a larger hot water source
• Fast recovery helps minimize wait times for hot water
• Easy to install with shelf, wall, or floor mounting options (bracket included)

Real-world use cases

• Provide on-demand hot water at a sink in kitchens or baths
• Support small, space-constrained setups where a full-size heater isn’t feasible
• Complement a main water heater by supplying instant hot water at point-of-use taps

Overall, the ES4 Tronic 3000 T blends practical capacity with flexible mounting and straightforward electrical hookup. It’s designed to help you access hot water quickly and reliably, without overhauling an entire plumbing setup, while keeping a tidy, unobtrusive presence in your space.