Call 7 days a week from 8am to midnight.   |   305-823-6991

Stiebel Eltron Mini 3 Point-Of-Use Tankless Water Heater 3KW

$ 159.00

Free shipping on everything! No minimum order.

Having trouble selecting the right heater? We're only a phone call away until midnight every day.

Call us at 305-823-6991

Ideal for restrooms or kitchenettes in a commercial setting also for RV's and Marine

The Stiebel Eltron Mini™ tankless water heaters are designed for installation at the point-of-use. The Mini™ heats water instantaneously as it flows through the unit. Stand-by heat-losses are completely eliminated. The efficient heating elements are controlled by a simple flow switch. Additionally, all Mini™ water heaters are equipped with a safety high-limit with manual reset.

The combination of meticulous German engineering and the best available materials ensure that every Mini™ is of the highest quality and designed for many years of trouble-free service. Nobody can compare with our exceptional reliability record and customer support services !

The Mini models ship with a 0.5 GPM pressure compensating flow reducer / aerator that fits most faucets. Flow controls and faucet aerators are highly recommended in conjunction with tankless water heaters. No pressure relief valve*, drains, or circulating pumps are needed.

  •  Made in the USA
  • Extremely compact design saves space
  • Major energy savings
  • Unlimited supply of hot water
  • Proven reliability
  • Sleek design is appealing and can be mounted in plain sight
  • ETL, WQA and ISO 9001 Certified!
  • Warranty: 10 Years Leakage / 3 Years Parts
Tech Specs
  • Pipe Fittings: 3/8"
  • 3.0KW at 110V
  • 25 amps - 1 single pole 30 amp breaker required. 1, 10/2 wire line
  • Dimensions: 7.5" x 6.5" x 3-1/4" inches
  • Weight: 3.44 lbs

Stiebel Eltron Mini 3 installation diagram.



Installation Guide

Engineering Spec Sheet

Submittal Sheet


Ask a Question
  • Does this unit come with a warranty?

    All Stiebel Eltron brand water heaters feature a 3-year warranty on all electrical components, as well as a 7-year warranty against any internal leaking components of the unit.

  • What size fittings does this unit have?

    The Stiebel Eltron Mini 3 tankless water heater uses 3/8” fittings on both the inlet and outlet, both located on the bottom of the unit.

  • What electrical specifications are required for this unit?

    The Stiebel Eltron Mini 3 tankless water heater draws 25 amps, thus requiring a single-pole 30amp breaker, and 10/2 wire (10 gauge).

  • What applications is this unit best used for?

    The Stiebel Eltron Mini 3 tankless water heater serves best when used as a point-of-use unit for smaller applications such as a boat, RV, or small condo. With 3.2KW of heating power, this unit will adequately heat up a sink or faucet. These are typically installed under a sink, or near the demand location.

  • Can you increase the output temperature

    No. Mini3 temp setting is set on high at all times.

  • The location of the manual reset on a mini 3

    Stiebel Eltron Mini 3 has resetable disk located on outlet pipe just inside unit. Look for yellow/ green ground wire and it's just above it.