Stiebel Eltron 239215 240/208 V 19.2/14.4 kW

Description

Stiebel Eltron Tempra 20 Trend Tankless Water Heater 239215 

Brand: Stiebel Eltron SKU: Tempra 20 Trend

Product Overview

The Stiebel Eltron Tempra 20 Trend is an advanced whole-house electric tankless water heater engineered to deliver a continuous and endless supply of hot water on demand. Operating with an impressive 0.97 Uniform Energy Factor (UEF) and a 97% recovery efficiency, this unit activates only when hot water is needed, completely eliminating the costly standby energy losses common with traditional storage tank models. Engineered and built with precision craftsmanship, it represents an exceptionally reliable and energy-efficient solution for upgrading your residential or light commercial hot water infrastructure.

As a core model in the Trend series, this system manages your hot water demands within a highly compact, wall-mounted enclosure that helps save valuable floor space. Its durable internal construction complies with strict plumbing regulations and safely handles maximum inlet water temperatures up to 131°F. This makes the unit remarkably versatile, working seamlessly as either a standalone whole-house water heater or as a highly effective inline temperature booster for pre-heated systems.

Key Features:

• On-Demand Heating Efficiency: Achieves a 0.97 UEF rating by heating water instantly at the point of use, helping to lower utility costs while minimizing energy waste.
• Space-Saving Wall Mount: Compact physical dimensions completely eliminate the need for a bulky water storage tank, creating clean, flexible installation opportunities in tight spaces.
• High-Temperature Input Safety: Safely accommodates maximum inlet water temperatures up to 131°F (55°C) to easily support inline or pre-heated utility setups.
• Certified Lead-Free Build: Thoroughly tested and certified to ensure strict material safety and dependable code compliance for residential drinking water.

Technical Specifications:

• Voltage: 240 V or 208 V
• Phase: Single 50/60 Hz (Can be wired for unbalanced 3-phase 208V)
• Wattage: 19.2 kW (at 240V) / 14.4 kW (at 208V)
• Amperage Draw: 2 x 40 A (at 240V) / 2 x 35 A (at 208V)
• Minimum Recommended Circuit Breakers: 2 x 40 A (DP)
• Number of Runs & Minimum Wire Size: 2 x 8/2 AWG Copper
• Dimensions: 16-5/8″ W x 14-1/2″ H x 4-5/8″ D
• Weight: 16.1 lb (7.3 kg)
• Nominal Water Volume: 0.26 gal (1.0 L)
• Water Connections: 3/4″ NPT
• Working / Tested Pressure: 150 psi (10 bar) / 300 psi (20 bar)
• Uniform Energy Factor (UEF) / Recovery Efficiency: 0.97 / 97%
• Certifications: Tested and certified by WQA against NSF/ANSI/CAN 372 for lead-free compliance; Conforms to UL Std. 499; Certified to CAN/CSA Std. C22.2 No.88

Installation & Versatility:

• Main Service Requirements: Requires a minimum main service electrical panel rating of 125 A to safely support the full operational load.
• Low Flow Activation: Successfully triggers the heating elements at a minimum water flow rate of 0.50 GPM (1.9 L/min) to easily accommodate modern low-flow plumbing fixtures.
• Standardized Piping Connections: Outfitted with robust 3/4″ NPT fittings to ensure straightforward plumbing integration with standard copper lines.
• Pressure Tolerances: Designed to function smoothly at a minimum operational pressure of 30 psi and rated to manage working pressures up to 150 psi.

Common Applications:

• Whole-House Residential Use: Serves as a highly efficient whole-house water heating solution for small to medium-sized single-family homes, apartments, or condos.
• Long Pipe Run Temperature Boosting: Installs perfectly down-line from a centralized primary water heater to restore and maintain proper temperatures over long pipe distances.
• Vacation Properties & Cabins: Offers immediate hot water upon arrival and can be completely shut down when vacant to prevent unnecessary off-season power usage.

Frequently Asked Questions:

Q: What is the maximum temperature rise this unit can provide at a flow rate of 1.50 GPM?

A: At a flow rate of 1.50 GPM, the Tempra 20 Trend provides a maximum temperature rise of 88°F when powered by 240V, and a 66°F rise when operating on 208V.

Q: What size electrical wire and breakers are necessary for installation?

A: The installation requires two dedicated runs of 8/2 AWG copper wire and two 40 A double-pole (DP) circuit breakers.

Q: Is this water heater safe for drinking water lines?

A: Yes, it is fully tested and certified by the WQA against NSF/ANSI/CAN 372 for strict lead-free compliance.

The Stiebel Eltron Tempra 20 Trend is an exceptionally compact and energy-efficient tankless water heater, making it an ideal choice for contractors and homeowners looking to optimize space and maximize hot water performance.