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Eemax SPEX3512 FlowCo 120V Tankless Electric Water Heater | 3.5kW

Eemax SPEX3512 FlowCo 120V Tankless Electric Water Heater | 3.5kW

by Eemax
SKU SPEX3512
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$ 0.00 - $ 0.00
$ 0.00
$ 196.00
$ 196.00 - $ 196.00
$ 196.00

Eemax SPEX3512 FlowCo Thermostatic Tankless Electric Water Heater

Brand: Eemax SKU: SPEX3512

Product Details

The Eemax SPEX3512 FlowCo is a unique high-output 120V tankless water heater designed for point-of-use applications where 240V power is unavailable. Delivering 3.5kW of heating power, this thermostatic unit solves the problem of "wait-time" for hot water at remote sinks. Unlike standard flow-modulated heaters, the SPEX3512 uses an advanced microprocessor to maintain a precise, steady output temperature, making it ideal for high-end residential bar sinks, office restrooms, and low-flow commercial fixtures.

Key Features:

  • 120V High-Power Performance: Provides significant heating capacity (3.5kW) on a standard voltage circuit, perfect for retrofits where adding a 240V line is cost-prohibitive.
  • Thermostatic Accuracy: Active energy management maintains an outlet temperature within $+/- 1^\circ\text{F}$ of the set point, ensuring a consistent user experience without temperature swings.
  • Ultra-Low 0.3 GPM Activation: Specifically engineered to work with modern water-saving and sensor-activated faucets that operate at very low flow rates.
  • Versatile 360-Degree Mounting: Its compact, lightweight chassis can be mounted in any orientation, fitting easily behind pedestals or inside tight under-sink cabinets.
  • Lead-Free & Durable: Constructed with high-quality Ni-Chrome heating elements and a reinforced housing designed for long-term industrial or residential use.

Specifications:

  • Power Rating: 3.5 kW
  • Voltage: 120V (Single Phase)
  • Amperage Draw: 29 Amps
  • Required Breaker: 30 Amp (Dedicated)
  • Recommended Wire Size: 10 AWG
  • Water Connections: 1/2" NPT
  • Activation Flow Rate: 0.3 GPM
  • Temperature Rise @ 0.5 GPM: 48°F
  • Dimensions: 9.75" H x 5.25" W x 3" D

Model kW Amps Breaker Rise @ 0.5 GPM Rise @ 1.0 GPM
120 Volt Single Phase
SPEX1812 1.8 kW 15A 15A 25°F 12°F
SPEX2412 2.4 kW 20A 20A 33°F 16°F
SPEX3012 3.0 kW 25A 30A 41°F 20°F
SPEX3512 3.5 kW 29A 30A 48°F 24°F
240 Volt Single Phase (Recommended for 208V with de-rating)
SPEX35 3.5 kW 14.6A 15A 48°F 24°F
SPEX48 4.8 kW 20A 25A 66°F 33°F
SPEX55 5.5 kW 22.9A 30A 75°F 38°F
SPEX65 6.5 kW 27.1A 30A 89°F 44°F
SPEX75 7.5 kW 31.3A 40A 102°F* 51°F
SPEX95 9.5 kW 39.6A 50A 130°F* 65°F

Note: All FlowCo SPEX models feature THERMOSTATIC control as standard, ensuring output accuracy of +/- 1°F.
*Temperature rise values exceeding 100°F are theoretical; the unit will maintain your set point (typically 105°F-110°F).
De-rating for 208V: 240V models installed on 208V circuits will yield 25% less heating capacity.

Installation & Maintenance Tips:

  • Dedicated Circuit Required: Because this unit draws 29 Amps, it must be installed on its own dedicated 30-amp circuit. Do not attempt to share this circuit with other appliances or lighting.
  • Pre-Power Water Flush: To avoid "dry-firing" the heating element, ensure you run water through the unit for several minutes to clear all air bubbles before switching on the breaker.
  • Hard Water Maintenance: If installed in an area with high mineral content, descale the unit annually to prevent scale buildup on the heating elements, which can reduce efficiency.
  • Inlet Filter: Periodically check the inlet filter screen for debris to maintain optimal flow and ensure the activation sensor functions correctly.

Common Uses/Applications:

  • Office Handwashing: Ideal for single-sink restrooms where only 120V power is available.
  • Wet Bars & Coffee Stations: Provides instant hot water for cleaning glassware or prep work without the bulk of a tank.
  • Food Trucks & Portable Sinks: A popular choice for mobile vendors needing reliable, thermostatic hot water for health code compliance.
  • Modular Homes & Additions: Simplifies plumbing in home expansions by removing the need for long hot water pipe runs.

Common Questions:

Q: Can I plug this into a standard wall outlet?
A: No. While it uses 120V, the 29-amp draw requires it to be hardwired into a dedicated 30-amp circuit by a professional electrician.
Q: Will this unit run a shower?
A: No. This 3.5kW unit is strictly for point-of-use handwashing or small sink applications. A shower requires significantly more power (typically 18kW - 27kW).
Q: Is the temperature adjustable?
A: Yes, the SPEX series features an internal adjustment to set your desired output temperature, which the unit will then maintain thermostatically.

The Eemax SPEX3512 FlowCo is the ultimate 120V solution for precision hot water, combining the safety of thermostatic control with the simplicity of standard voltage installation.

Power Rating: 3.5 kW
Voltage: 120V (Single Phase)
Amperage Draw: 29 Amps
Required Breaker: 30 Amp (Dedicated)
Recommended Wire Size: 10 AWG
Water Connections: 1/2" NPT
Activation Flow Rate: 0.3 GPM
Temperature Rise @ 0.5 GPM: 48°F
Dimensions: 9.75" H x 5.25" W x 3" D

Physical Specifications
Height: 10 inches
Width: 5 inches
Depth: 3 inches
Weight: -AG2121
Color: White
Cover Material: ABS-UL 94 V-0 Rated+AH2138:AI2138

View Spec Sheet (PDF)
View Install Manual (PDF)

Product Video

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