Description:
Stiebel Eltron Tempra 15B Electric Tankless Water Heater - Whole House

The Stiebel Eltron Tempra 15B is one in a series of whole house water heaters, designed to suit individual situations and needs.

Usage
For use in homes or condos with:
1 Bathroom Warm Climate
If you have a Jacuzzi tub or body spray shower, you may need a larger unit or this and a point of use unit.
This unit is compatible with most water ambient water temperatures throughout the lower 48 States.
What is the temperature of your incoming water? This will help determine which unit you will work best for you. It is called the ambient water temperature.
You will need a meat thermometer or candy thermometer or any thermometer that will measure down to zero degrees Fahrenheit.
Make sure you are not running any appliances such as dishwasher or clothes washer.
Go to your kitchen sink and turn on the the cold water and let it run about a minute. Hold the end of the thermometer into the cold water for another minute. This will tell you what the ambient temperature of the water coming into your house is.
In the northern climates of the US, it is normal for the ambient temperature of the water to be between 42 and 54 degrees all year long. In the lower southern states or coastal states it can be as much as 70 degrees.