• The GWH1600P-NG is a tankless gas water heater that is manufactured by Bosch. With full approval from the Canadian Standards Association, the GWH1600P-NG is a safe and efficient water heater that can be installed just about anywhere. A 12-year warranty on the heat exchanger mechanism of the unit is provided as well as a two-year warrant on all parts.
  
  

Water Flow and Temperature

• The exact temperature of the water is based on the exact amount of water flow, which is referred to as gallons per minute gpm). For instance, a flow of 4.3 gpm will result in a water temperature rise of 45 degrees Fahrenheit, 3.4 gpm results in a rise of 55 degrees Fahrenheit, 2.9 gpm results in a rise of 65 degrees Fahrenheit, 2.4 gpm results in a rise of 77 degrees Fahrenheit and a flow of 2.1 gpm results in a rise of 90 degrees Fahrenheit. The temperature rise is added onto the temperature of the water as provided by the tap. This unit requires a water flow of 0.5 gallons per minute before it will activate and begin to heat your water.
  
  

Energy Usage

• The Bosch GWH1600P-NG has a maximum input of 117,000 British thermal units (BTUs) per hour and a maximum output of 91,525 BTUs per hour.
  
  

Efficiency

• Thermal efficiency of the Bosch GWH1600P-NG is rated at 78 percent for both liquefied petroleum and natural gas. Thermal efficiency refers to the effectiveness of the unit regarding its ability to turn the gas into heat for your home. The Bosch GWH1600P-NG has an energy factor of 79 when using LP and 69 when using natural gas. This rating also affects the unit's ability to convert LP or natural gas into heat.
  
  

Ventilation

• Two ventilation options exist for the Bosch GWH1600P-NG: horizontal and vertical, which allows for maximum compatibility with your existing home's water heater setup, particularly when using natural gas. A vent of 5 inches in diameter that is installed at a minimum height of 6 inches is required for proper ventilation of the unit.
  
  

Safety

• This unit is equipped with three separate safety devices to maximize safety within the home and when using the water heater. Overheat prevention is provided by the unit's built-in temperature limiter, and the water heater is also equipped with an ionization thermocouple that acts as a flame failure device. The Bosch GWH1600P-NG is also equipped with a pressure relief valve.
  
  

Dimensions

• Dimensions for the unit include a height measurement of 25.79 inches high, a width measurement of 18.11 inches and a depth of 8.66 inches. The Bosch GWH1600P-NG weighs 35 lbs.