Eemax SPEX65 6.5kW 240V Electric Tankless Water Heater
Brand: Eemax | SKU: SPEX65
Product Overview
The Eemax SPEX65 FlowCo is a compact, point-of-use electric tankless water heater designed to deliver energy-efficient, on-demand hot water for residential and commercial spaces. Operating at 6.5kW and 240V, this microprocessor-controlled system is ideal for handwashing applications, single lavatory faucets, kitchen sinks, bars, and utility sinks. Homeowners, DIYers, and contractors choose this model for its flexible multi-directional installation, reliable thermostatic accuracy, and space-saving design that integrates easily underneath fixtures.
Key Features:
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Thermostatic Temperature Accuracy: Active energy management uses power modulating controls and complex algorithms to maintain a consistent output of +/-1°F.
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Ultra-Low Flow Activation: Features an industry-leading turn-on threshold of just 0.2 GPM, making it highly effective for variable or fixed flow applications like sensor and metering faucets.
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SafeStart™ Technology: Automatically safeguards the internal mechanism during start-up to actively prevent dry-firing occurrences and maximize system longevity.
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Multi-Directional Mounting: Single-module design allows the water heater to be mounted in any orientation, maximizing workspace adaptability under tight sinks or counters.
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Silent Operation: Advanced digital controls ensure zero clicking noise, providing quiet performance for public restrooms, offices, and residential spaces.
Technical Specifications:
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Model: SPEX65
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Product Type: Electric Tankless Water Heater (Point-of-Use)
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Finish/Color: White
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Material: ABS-UL Rated 94 5VA Cover; Replaceable Nichrome Cartridge Element Insert
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Size/Dimensions: 9.75" H x 5.25" W x 3" D
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Connection Size: 3/8" Integral Compression Fittings
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Voltage: 240V (Can be used on 208V with 25% reduced temperature output)
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Wattage: 6.5kW (6,500 Watts)
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Flow Rate: 0.2 GPM Minimum Activation; 3.0 GPM Maximum Flow Rate
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Pressure Rating: 30 PSI Minimum Operating Pressure; 150 PSI Maximum Operating System Pressure
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Location Rating: Indoor use only (Must protect from freezing temperatures)
Installation & Versatility:
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Installation Type: Point-of-use wall mount, typically positioned "under the sink" below the point of hot water use.
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Field Adjustment: Features a digital LED display with accessible push-button interfaces for field-adjustable thermostat set points ranging from 70°F to 140°F.
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Compatibility: Compatible with 3/8" copper or PEX piping using the supplied brass compression fittings. No soldering, sweat connections, or T&P relief valves are required by UL 499 (though check local plumbing codes). Accepts cold or preheated water feeds.
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Recommended Use: Single lavatory handwashing, multiple sensor or metering faucets, kitchen/bar/utility sinks, and ADA-compliant building facilities.
Frequently Asked Questions
Does this unit require a temperature and pressure (T&P) relief valve?
This water heater is not required by UL 499 to employ a temperature and pressure relief valve. However, you should always verify state and local plumbing codes to ensure compliance in your specific area. If required by local code, it must be installed in the outlet pipe between the heater and the isolation valve.
Can the SPEX65 be mounted sideways or upside down?
Yes, this single-module heater is engineered for multi-directional mounting and can be installed in any orientation. The ideal physical setup is with the fittings pointing down, but it can adapt safely to whatever space configuration your undersink plumbing requires.
What is the minimum water flow required to activate the heating element?
The Eemax FlowCo series features a low-flow activation of 0.2 GPM. This low activation threshold ensures hot water will trigger even when used alongside modern high-efficiency sensor faucets or restrictive metering valves.
Can I use this heater for a hot water recirculation loop?
No, this unit should not be used in a continuous recirculation application. Operating it within a recirculation loop can shorten the lifespan of the components and may void the manufacturer warranty.
Why We Like It:
The Eemax SPEX65 is a top-tier option for dedicated point-of-use installations because it solves the common headache of fluctuating low-flow temperatures. Its power-modulating microprocessor eliminates the rapid clicking noise found in other models and maintains strict, stable temperature controls. When prepping for installation, double-check that your electrical infrastructure can support an independent 240V circuit requiring 27 Amps and 10 AWG copper wire. Remember to flush all air pockets out of the plumbing lines for a full minute or two before turning on the circuit breaker to prevent unexpected heating element damage.
