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Eemax SPEX4208 | 4.1kW 208V Electric Tankless Water Heater
Eemax SPEX4208 | 4.1kW 208V Electric Tankless Water Heater

Eemax SPEX4208 | 4.1kW 208V Electric Tankless Water Heater

by Plumbers Paradise
$243.88 - $243.88
$243.88
$243.88 - $243.88
$243.88

4.1 kW (208 V) FlowCo™ tankless heater for handwashing and fixed-flow sinks; compact, efficient, ADA‑compliant, and installs in any orientation.
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Description: Eemax SPEX4208 FlowCo™ Point‑of‑Use Electric Tankless Water Heater

The Eemax FlowCo™ SPEX4208 delivers seamless, on-demand hot water for handwashing and fixed‑flow applications, including sensor or metering faucets. Operating on a 208 V, 4.1 kW system, this ultra-compact unit fits virtually anywhere and mounts in any orientation. It features intelligent safety controls, including InfoCue™ LED diagnostics and SafeStart™ dry‑fire protection, making it an efficient, reliable solution for commercial and residential settings.

Feature Specification Benefit
Power Rating 4.1 kW, 208 V, 20 A Robust point-of-use performance
Activation Flow ≈ 0.4 GPM Reliable heating at low flow rates
Maximum Flow Rate Up to 2.0 GPM Ideal for handwashing and similar fixtures
Temperature Rise Examples 56°F at 0.5 GPM, 37°F at 0.75 GPM, 28°F at 1 GPM, 19°F at 1.5 GPM  Achieves desired warmth across common flow scenarios
Energy Factor ≈ 0.97 Very high energy efficiency 
Mounting Orientation Any orientation Flexibility in tight or awkward space installations
Dimensions ~9.73″ H × 5.25″ W × 3″ D Compact enough for under-sink or wall-mounted use
Certifications UL, cULus, AHRI, ADA, NSF/ANSI 372 (low-lead) Meets safety, code, and accessibility standards
Material & Element ABS enclosure, nickel‑chrome cartridge Durable, safe-to-use design with replaceable heating core
Pressure Ratings Min 30 PSI / Max 150 PSI Suitable for typical residential and light commercial lines
Warranty 5 years limited on leaks, 1 year on parts Long-term protection against leaks and component failures
Safety Controls InfoCue™ LED diagnostics; SafeStart™; ECO cut-off Intelligent system monitoring and fail-safe protection

How It Works: Efficient & Safe Hot Water, Instantly

1. Demand‑Activated Heating
Flow-sensitive switch powers the heating element only when water flows.

2. Smart Diagnostics & Protection
InfoCue™ status LEDs show operational health. SafeStart™ prevents dry firing, while internal overrides protect against overheating.

3. Compact, Ready-to-Go Installation
Includes cold-water input and hot-output compression fittings—no mixing valves or additional parts required.

Key Features

  • On-demand heating with zero standby energy loss

  • Ultra-compact—fits beneath sinks or in tight confinement

  • Install in any orientation for greater flexibility

  • Smart safety: InfoCue™, SafeStart™, high-temp cut-off

  • Single cold-water connection simplifies plumbing

  • ADA compliant and low-lead wetted materials

  • Field-replaceable heating cartridge

Ideal Applications

  • Handwashing sinks (sensor or manual)

  • Restrooms and wash stations in offices, schools, or facilities

  • Kitchenettes and bar sinks with fixed-flow usage

  • Under-sink retrofits in tight spaces

  • Mobile or modular units requiring energy-efficient equipment

Performance Highlights

  • Activates at approximately 0.4 GPM

  • Delivers up to 2 GPM capacity

  • Provides up to 56 °F temperature rise at 0.5 GPM

  • Energy-efficient with about 0.97 energy factor

  • Smart diagnostics and automatic safety features

  • Fits into compact spaces; mounts any orientation

  • Low-maintenance with replaceable components

  • ADA and low-lead certified for modern compliance

Application: Point-of-use, non-thermostatic hot water for sinks and fixed-flow fixtures

Voltage: 208 V

Power: 4.1 kW

Amperage: 20 A

Recommended Wire Size: 14 AWG

Activation Flow Rate: ~0.4 GPM

Maximum Flow Rate: Up to 2 GPM

Temperature Rise: Up to ~56 °F at 0.5 GPM; ~28 °F at 1 GPM; ~19 °F at 1.5 GPM

Temperature Range: ~90–130 °F

Dimensions: 9.73″ H × 5.25″ W × 3″ D

Weight: ~3 lb

Water Connections: 3/8″ compression fittings

Pressure Ratings: Min 30 PSI, Max 150 PSI

Certifications: UL, cULus, AHRI, ADA, NSF/ANSI 372

Warranty: 5 years limited on leaks, 1 year on parts Ferguson HomeSupplyHouse.com

Installation

Ensure the dedicated 208 V / 20 A circuit breaker is powered off

Mount the unit near the fixture—any orientation is acceptable

Connect the cold-water line to the inlet using a 3/8″ compression fitting

Connect the hot water fixture to the outlet plain compression fitting

Wire the unit with 14 AWG copper to the dedicated 208 V breaker

Restore water flow and check all fittings for leaks

Re-energize the circuit to enable instant heating upon demand

Installation & User Manual
Specification Sheet

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