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Compact white rectangular undersink tankless water heater with brass fittings and digital display

Eemax

Eemax SPEX3277 277 V 3 kW undersink tankless water heater

SKU CH-5WAS-WCYSW

Undersink electric tankless heater delivering up to 1.5 gpm at 277 V single-phase for commercial kitchen and lavatory faucets

  • Product typeWater Heaters
  • Delivers hot water on demand at up to 1.5 gpm flow rate
  • Activates with minimal 0.25 gpm draw for low-flow fixtures
  • Compact 10.75 in height fits tight undersink spaces
  • Runs on standard 277 V single-phase power at 11 A
  • Adjustable output from 70 to 140 °F for varied needs

Undersink 277 V electric heater

The Eemax SPEX3277 is a compact tankless water heater designed for indoor commercial use at kitchen sinks, lavatory faucets, metering faucets and sensor faucets. It operates on single-phase 277 V AC power and draws 11 A while consuming 3 000 W.

Cold inlet and flow activation

The unit accepts a 3/8 in cold water inlet and activates at a minimum flow of 0.25 gpm up to a maximum of 1.5 gpm. Delivered water temperature is adjustable between 70 and 140 degrees F.

Compact wall-mount installation

Measuring 10.75 in high, 5.25 in wide and 3 in deep, the heater fits under most sinks and mounts directly to the wall. California Proposition 65 warnings apply for chemicals known to cause cancer and reproductive harm.

How it compares

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

Price $229.99
Pricier than about 61% of the 85 comparable items (median $163.99).

Specifications

Product
Brand nameEEMAX
Product typeWater Heaters

Questions about this item

What does the 3 kW rating mean for hot water delivery at my sink?

At 277 V single-phase the unit draws 11 A and can supply up to 1.5 gpm with outlet temperatures adjustable between 70 and 140 °F.

What electrical supply does the 277 V single-phase specification require?

The heater operates on 277 V AC single-phase power and draws 11 A at full load.

What are the physical dimensions and inlet size for under-sink installation?

The unit measures 10.75 in high, 5.25 in wide and 3 in deep with a 3/8 in cold water inlet.

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