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Compact white rectangular undersink water heater unit

Eemax

Eemax SPEX75 Electric Tankless Water Heater 7500 W 240 V Single Phase Undersink

SKU CH-PNDT-9B9RM

Compact 7.5 kW electric tankless heater delivers on-demand hot water at up to 2 gpm for undersink installations

  • Product typeWater Heaters
  • Delivers instant hot water at 7500 W power
  • Compact 10.75 in height fits under sinks easily
  • Single-phase 240 V operation suits standard wiring
  • Activates at low 0.7 gpm flow rate
  • Provides adjustable 70–140 °F temperature range

Undersink electric tankless heater

The Eemax SPEX75 is an electric tankless water heater designed for undersink installation in commercial environments. It serves kitchen sinks, lavatory faucets, metering faucets and sensor faucets with on-demand hot water. The unit operates on single-phase 240 V AC power and draws 32 A at 7,500 W. It is not suited for whole-house demand or installations requiring higher flow rates.

Sustained delivery at fixed output

Under continuous use the heater maintains a maximum delivered temperature of 140 Degrees F and a minimum of 70 Degrees F. Activation requires a flow of at least 0.7 gpm and the unit tops out at 2 gpm. These limits define the steady-state envelope; the heater cannot supply more hot water than the 2 gpm ceiling regardless of inlet conditions. The compact frame measures 10.75 in high, 5.25 in wide and 3 in deep.

2 gpm maximum flow rate decides fit

The single specification that determines whether this heater fits the job is the 2 gpm maximum flow rate. If the connected fixtures demand more than 2 gpm simultaneously, the unit will not meet the load. Buyers who need higher simultaneous flow should look elsewhere. The cold inlet uses a 3/8 in compression fitting for straightforward plumbing.

How it compares

Measured against everything we stock in Water Heater Parts & Add-Ons, at today’s prices. Recalculated every night.

Price $211.99
Pricier than about 57% of the 85 comparable items (median $163.99).

Specifications

Product
Brand nameEEMAX
Product typeWater Heaters

Questions about this item

How loud is the SPEX75 when it runs continuously under a sink?

The unit has no fan or compressor, so it operates silently while heating water on demand.

What electrical supply must already be in place for the SPEX75 to work?

A dedicated 240 V single-phase circuit rated for at least 32 A is required.

Will the SPEX75 activate with the low flow from my older lavatory faucet?

It needs a minimum flow of 0.7 gpm to start heating, so very low-flow fixtures may not trigger it.

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