Stiebel Eltron - TEMPRA20PLUS - 223422 240V, 1 Phase, 50/60 Hz, 20 kW Tempra 20 Whole House Tankless Electric Water Heater

Spec Sheet Install Manual

Choosing the right Tankless Electric Water Heater for your home.

Overview
The Tempra® series has been redesigned completely inside and out - upgraded heavy-duty electronics, a simple single flow sensor design, a hinged cover for easy access, and Advanced Flow Control for the Tempra® Plus. Welcome to the next generation of German quality.

Unlimited Supply of Hot Water
The Tempra® continually heats water instantaneously as you require it - and only when you require it. The Tempra® unit completely replaces a conventional tank heater with no disruption to your comfort and hot water needs.

Tempra Plus Featuring Advanced Flow Control
The Tempra® Plus is the most technologically advanced tankless water heater available on the market today. Advanced Flow Control is exclusive to the Tempra® Plus and ensures a constant temperature output no matter how great the hot water demand is.

Advanced Flow Control technology works by automatically adjusting the flow of water to eliminate unpleasant temperature fluctuation. What that means to you is a consistently satisfying experience every time, all the time!

Save Energy and Reduce Your Electric Bill
Electric tank type water heaters are subject to stand-by losses which amount to 15 - 20% of the kWH used. In addition, water in a tank has to be heated hotter than necessary to account for these stand-by losses.

Changing to a tankless system like the Tempra® eliminates these problems and results in typical savings of at least 15 - 20% on the hot water portion of your electric bill.

Control Temperature Simply By Setting a Dial
Set the knob on the front cover and enjoy water temperatures between 86°F (30°C) and 140°F (60°C). Change the desired temperature at anytime. Advanced microprocessor technology ensures that the water temperature never deviates from the set point.

Proven Reliability
Stiebel Eltron has an enviable track record of engineering excellence and product quality. The three years parts warranty is unique in the industry. You can depend on the Tempra® for many years to come.

Sleek Design Fits in Anywhere
The Tempra® takes up considerably less space than conventional tank type water heaters and saves valuable living space.

No Venting Required
The Tempra® has several advantages over a gas-type tankless water heater. Compared to many similar gas tankless models the Tempra® is less expensive to purchase. Installation is also much simpler and cheaper since it is not necessary to vent a Tempra® to the outside.

The venting that a gas unit requires causes anywhere from a 10 - 20% efficiency reduction from heat escaping out the exhaust pipe. Furthermore, for every cubic foot of gas burned, roughly two cubic feet of air have to be mixed in to create ideal combustion. In a cold climate, this hurts efficiency further.

When a gas unit fires it draws in air around it, heats the water, and then expels warm exhaust outside. Since no house is airtight, this suction action causes a drafting condition where cold air from the outside seeps back in through door cracks and other parts of the house that may not be airtight.

By nature of the design, the Tempra® is nearly 100% efficient; converting 100% of the electrical energy it consumes into heat. All that heat is then transferred to the water - none is lost to the outdoors.

Superior, reliable performance
The Tempra® has several temperature and flow sensors which feed their readings into the unit's proprietary microprocessor control. Heating elements are engaged in stages, achieving the temperature you desire. The Tempra® continually monitors the water temperature it produces.

Min Flow (GPM):

1.35

Application:
1 Shower
Fuel Type:
Electric
Voltage:
208v
240v
Amps (208V):
70 (2*35)
Amps (240V):
80 (2*40)
KW (240V):
19.2
KW (208V):
14.4
Water Connection:
3/4"
Connection Type:
Threaded

Height (Inches):
14.5
Width (Inches):
16-5/8"
Depth (Inches):
4-5/8"