Brands and Models

We are offering our clients the widest choice of tankless water heater models, for any application.

Doctor Piper, Inc. specializes in tankless water heaters installation, service and repair. We are trained and certified by all the major tankless manufacturers.

Tankless Brands

Bosch Tankless


Bosch Therm is the newest, most advanced line of tankless water heaters for North America. This expanded line includes high efficiency gas condensing and non-condensing tankless water heaters with more compact models and greater installation versatility to satisfy every residential and commercial application.

Noritz Tankless


Compact in design, Noritz tankless water heaters can be installed virtually anywhere - inside or outside to maximize user convenience. Compared to traditional water heaters, Noritz eliminates the need for a tank to heat up the stored water supply. Noritz tankless hot water heaters will supply users with hot water on-demand, every time.

Navien Tankless


Why choose a Navien Tankless Water Heater? In a word: Efficiency. Navien manufactures one of the most cost-efficient Water Heaters available. The built-in hot water recirculation system lowers the cost of customer's water bills each month. Navien has a longer life span and lower operating costs than other water heaters. In October 2012, Navien introduced their newest product line - the NPE model, which utilizes the existing 1/2" gas line.

Rinnai Tankless


Rinnai offers the quality and reliability that is built on a 45 year history of innovation and improvements. Rinnai provides superior customer support before and after the sale with an industry-leading 12-year limited warranty. Rinnai has over 30 million tankless water heater installations worldwide.

Takagi Tankless


As the first tankless water heater company to enter the North American market 15 years ago and over half a century in Japan, Takagi have earned the reputation for developing superior tankless products with superior tankless technology. From conceptual design to production, Takagi ensures consistent quality and performance at a great price! For more than sixty years, Takagi's innovative technology has been efficiently heating water in homes, businesses and institutions around the world.

Rheem Tankless


Tankless Water Heaters from Rheem are innovative, energy efficient water heating solutions for today's homes. From point of use applications to whole home systems, Rheem has the water heating solution to fit your needs while providing a continuous supply of hot water from an energy-efficient and space-saving product. Imagine never running out of hot water again.

Eternal Tankless


No matter which Eternal you choose, you'll get endless hot water, consistent pressure and never a cold water sandwich. When installed in optional recirculation, you'll save water by never waiting for hot water again. Its compact stainless steel design is up to 98% efficient, durable, and leaves almost no carbon footprint. Purchase and install an Eternal GU100 between October 1st and December 31st 2012 and receive $100 cash back by mail.