Bosch On Demand DHW Heaters - Who Should Own One?

Before discussing installation information, it is important for homeowners to understand how an instantaneous water heater differs from a standard tank-type water heater.

U.K., Europe, Pacific Rim countries and many other parts of the world, all use tankless water heaters.  There has to be a reason!

Fuel costs have historically been much higher in the rest of the world where they have had to develop equipment that is more efficient. Tankless water heaters are 25-30% more efficient than the tank type.  This is because a tank type heater has to burn 25-30% longer just to keep the water hot in the tank.  When the burner is off, cold air is drawn through the flue(s) running up the middle of the tank, leaching heat from the stored water which is wasteful and very inefficient.

Bosch tankless water heater has no tank to maintain, therefore minimal stand by heat losses, and the burner only comes on when hot water is needed.  This is energy smart and saves 30% in our water heating costs.  It is why our instantaneous heater produces 30% less flue gas emissions, which is environmentally smart.

Even though a tankless water heater may cost more than a tank type water heater, it could be the last water heater you ever buy. In North America we are used to throwing away the whole water heater every 5 - 7 years when it leaks.  Tankless heaters are designed to be repaired with all parts being replaceable - you never throw them out.

Because Bosch tankless water heaters are instantaneous and provide hot water on demand, you'll never run out of hot water, even in large homes, with showers one right after the other.

Because of its compact size (30"H x 18"W x 9"D) and the fact that it's wall hung, it also helps conserve space.

• It is just as easy to install and operate as a tank type heater.
• It is equipped with either auto electronic or piezo ignition.
• It requires minimal maintenance.

Requirements: