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

Product Details

The Eemax SPEX4208 FlowCo is a high-efficiency tankless water heater specifically engineered for 208V electrical systems, common in commercial and industrial settings. Delivering 4.1kW of power, this unit provides a reliable, thermostatic hot water solution for point-of-use fixtures. It solves the performance loss often seen when installing 240V heaters on 208V circuits by providing a calibrated power output that ensures consistent temperatures. Compact and remarkably versatile, the SPEX4208 is the professional’s choice for dedicated handwashing in office buildings, schools, and retail environments.

Key Features:

• 208V Optimization: Purpose-built for 208V power, ensuring you get the full 4.1kW of heating capacity without the "de-rating" performance drop associated with standard 240V models.
• Thermostatic Accuracy: Integrated microprocessor technology maintains a precise outlet temperature ($+/- 1^\circ\text{F}$), preventing fluctuations even as incoming flow rates change.
• 0.3 GPM Activation: Designed to trigger heating at ultra-low flow rates, making it perfectly compatible with LEED-compliant water-saving faucets and sensor sinks.
• Mount Anywhere: Features a 360-degree mounting design, allowing the unit to be installed in any orientation to fit into tight under-sink cabinets or around existing plumbing.
• Energy Efficiency: Only draws power when the faucet is turned on, eliminating the standby heat loss of traditional tank heaters and reducing overall energy costs.

Specifications:

• Power Rating: 4.1 kW
• Voltage: 208V (Single Phase)
• Amperage Draw: 19.7 Amps
• Required Breaker: 25 Amp
• Recommended Wire Size: 10 AWG
• Water Connections: 1/2" NPT
• Activation Flow Rate: 0.3 GPM
• Temperature Rise @ 0.5 GPM: 56°F
• Dimensions: 9.75" H x 5.25" W x 3" D

Installation & Maintenance Tips:

• Check Your Voltage: This model is specifically for 208V circuits. Installing this on a 240V circuit will cause the unit to draw significantly more amperage than rated and may damage the heating elements or trip the breaker.
• Prevent Dry-Firing: Always run water through the unit for at least two minutes to purge all air before turning the electrical power on for the first time.
• Inlet Filter Cleaning: Ensure the factory-installed inlet filter screen is checked annually. Debris can prevent the 0.3 GPM sensor from activating the heating sequence.
• Hard Water Areas: If your local water is high in mineral content, consider a scale-inhibitor filter on the intake to maintain the efficiency of the Ni-Chrome heating elements.

Common Uses/Applications:

• Commercial Office Buildings: Provides instant hot water for restrooms on 208V 3-phase building power.
• Educational Facilities: Safe, thermostatic water for handwashing stations in schools and dormitories.
• Retail Facilities: Compact enough for strip mall employee restrooms or single-sink breakrooms.
• Laboratory Sinks: Offers the steady, precise temperatures required for clean-up in sensitive lab environments.

Common Questions:

Q: Can I use this for a kitchen sink?

A: The SPEX4208 is primarily for handwashing. While it can handle a kitchen sink, the flow rate would be restricted to approximately 0.7 GPM to achieve a 40°F temperature rise.

Q: Is this unit safe for public restrooms?

A: Yes. Its thermostatic control prevents accidental scalding, and it can be set to meet local code requirements for maximum handwashing temperatures (usually 105°F - 110°F).

Q: Does it require a Temperature & Pressure (T&P) valve?

A: In most jurisdictions, point-of-use tankless heaters do not require a T&P valve because they do not store water, but always verify with your local plumbing inspector.

The Eemax SPEX4208 FlowCo is the ultimate 208V solution for precision heating, combining commercial-grade durability with a compact footprint that fits nearly anywhere.