Stiebel Eltron Tempra 20 Plus Electric Tankless Water Heater | 19.2 kW

Product Details

The Stiebel Eltron Tempra 20 Plus is a premier 19.2 kW tankless electric water heater designed to provide an endless supply of hot water for residential and light commercial use. Engineered in Germany, this "Plus" model solves the common issue of temperature fluctuations by utilizing patented Advanced Flow Control™ technology. Whether you're looking to save space, reduce energy costs by up to 20%, or ensure a consistent shower temperature even when other taps are opened, the Tempra 20 Plus is the high-performance solution for modern, energy-conscious homes.

Key Features:

• Advanced Flow Control™: Automatically adjusts water flow to maintain a constant, steady output temperature even if demand exceeds capacity.
• Self-Modulating Technology: Smart microprocessors monitor flow and temperature to use the least amount of electricity necessary, ensuring 99% efficiency.
• Digital Temperature Display: Features a user-friendly front-panel dial and digital screen for precise temperature settings between 68°F and 140°F.
• Silent Operation: Uses electronic switches and high-quality triacs to eliminate the "clicking" noises often found in other electric water heaters.

Specifications:

• Wattage: 19.2 kW at 240V / 14.4 kW at 208V
• Amperage: 80 Amps (240V) / 70 Amps (208V)
• Water Connections: 3/4" NPT
• Max Flow Rate: Up to 3.75 GPM (at 35°F rise)
• Electrical Requirements:
  • 2 x 40 Amp Double-Pole Breakers
  • 2 x 8/2 AWG Copper Wiring
  • Min. 125 Amp Total Service Recommended

Installation & Maintenance Tips:

• Vertical Mounting: The unit must be installed vertically with water fittings pointing downward to ensure proper air venting and operation.
• Hard Water Protection: In areas with high mineral content, an anti-scale filter or regular descaling flushes are recommended to maintain the copper heating elements.
• Wiring Integrity: Use only copper conductors. Ensure all terminal connections are tightened to the manufacturer's torque specifications to prevent overheating.

Common Uses/Applications:

• Whole-House Heating: Ideal for small to medium-sized homes with 1–2 bathrooms in warmer climates.
• Point-of-Use: Perfect for high-demand fixtures like luxury master suites or commercial kitchen sinks where instant, endless hot water is required.
• Space-Saving Retrofits: Its compact, vent-free design allows for installation in closets or under-stair spaces where a traditional tank won't fit.

Common Questions:

Q: Does this unit require venting?

A: No, because it is an all-electric unit, there are no combustion gases to vent, making installation much simpler than gas alternatives.

Q: Will my water get cold if I run two showers at once?

A: Thanks to Advanced Flow Control™, the unit will prioritize temperature over volume. If demand is too high, it will slightly reduce the flow rate so the water remains at your desired temperature.

Q: Can I use this for a hot tub or pool?

A: The Tempra series is designed for domestic potable water use. It is not recommended for circulating pool or hot tub water due to chemical corrosion risks.

With its sleek European design and unmatched German engineering, the Stiebel Eltron Tempra 20 Plus is the perfect solution for homeowners seeking consistent comfort and significant energy savings without the bulk of a traditional tank.