Stiebel Eltron Tempra 12 Trend Tankless Water Heater 239213
The Stiebel Eltron Tempra 12 Trend is a highly efficient, compact tankless electric water heater engineered to deliver a continuous and unlimited supply of hot water on demand. Operating at a 0.94 Uniform Energy Factor (UEF) and a 93% recovery efficiency, this unit activates its copper-sheathed heating elements instantaneously as water flows through it. By heating water only when needed, it completely eliminates the standby heat loss associated with conventional tank water heaters, providing a highly reliable and energy-saving solution for modern residential spaces.
Equipped with exclusive Electronic Temperature Control, the Tempra 12 Trend monitors incoming water conditions and adjusts its power stages to ensure a steady output temperature, even when flow rates fluctuate. Its space-saving wall-mount profile features an alpine white sheet steel cover and a backlit digital display, making configuration clear and accessible. With an electronic switch that provides virtually silent operation, this German-engineered system delivers premium performance in a small footprint.
Key Features:
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Electronic Temperature Control: Ensures a steady and predictable output temperature by constantly monitoring incoming flow and adjusting heating element engagement.
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On-Demand Heating Efficiency: Achieves a 0.94 UEF to lower energy waste and save on monthly utility costs by entirely eliminating standby thermal losses.
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Backlit Digital Display: Provides a clear, intuitive interface that shows temperature settings and power capacity, complete with an adjustable safety temperature lock.
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Silent Operation: Built with an electronic switch instead of mechanical contactors to function quietly without disruptive clicking noises during activation.
Technical Specifications:
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Voltage: 240 V or 208 V
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Phase: Single 50/60 Hz
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Wattage: 12 kW (at 240V) / 9 kW (at 208V)
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Amperage Draw: 50 A (at 240V) / 44 A (at 208V)
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Minimum Recommended Circuit Breakers: 1 x 50 A Double Pole (DP)
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Number of Runs & Minimum Wire Size: 1 x 8/2 AWG Copper
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Dimensions: 16-5/8" W x 14-1/2" H x 4-5/8" D
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Weight: 13.5 lb (6.1 kg)
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Nominal Water Volume: 0.13 gal (0.5 L)
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Water Connections: 3/4" NPT
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Working / Tested Pressure: 150 psi (10 bar) / 300 psi (20 bar)
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Uniform Energy Factor (UEF) / Recovery Efficiency: 0.94 / 93%
Installation & Versatility:
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Electrical Panel Requirements: Requires a minimum main service electrical panel rating of 100 A to safely accommodate the unit's operational load.
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Low Activation Threshold: Triggers the interior copper heating system at a minimum flow rate of 0.37 GPM (1.4 L/min) to comfortably support low-flow plumbing fixtures.
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Flexible Temperature Range: Adjusts easily via the front dial to deliver water temperatures between 68°F (20°C) and 140°F (60°C).
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High Input Compatibility: Safely accepts pre-heated inlet water temperatures up to 131°F (55°C), making it versatile for inline boosting applications.
Common Applications:
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Small Homes & Apartments: Acts as an efficient standalone whole-house water heater for smaller residential spaces with moderate point-of-use demands.
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Point-of-Use Fixtures: Supplies on-demand hot water directly to dedicated locations like bathrooms, powder rooms, or remote sinks to eliminate long pipe runs.
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Inline System Boosting: Installs down-line from a primary water source to safely boost temperatures and maintain warmth over extended plumbing distances.
Frequently Asked Questions:
- Q: What is the maximum temperature rise this unit can provide at a flow rate of 1.50 GPM?
- A: When operating at 240V, the Tempra 12 Trend provides a 54°F temperature rise at 1.50 GPM. On a 208V power supply, it provides a 41°F temperature rise at the same flow rate.
- Q: Does this model include Advanced Flow Control?
- A: No, Advanced Flow Control is an exclusive feature found on the Tempra Plus models. The Tempra Trend models utilize Electronic Temperature Control to maintain steady delivery under normal capacities.
- Q: What material is used for the heater's cover?
- A: The water heater is constructed with a durable Alpine White sheet steel cover.
The Stiebel Eltron Tempra 12 Trend offers a compact, silent, and highly efficient solution for homeowners and DIYers seeking reliable, on-demand hot water without the bulk of a traditional storage tank.
