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Compact white rectangular tankless water heater unit with front control panel and bottom pipe connections

Stiebel Eltron

Stiebel Eltron DHC 6-3 Classic 277V water heater part

SKU CH-HZZX-XKV2K

An electric tankless water heater operating at 277 V AC, single phase, with a 6,000 W power draw and 22 A current

  • TypeWater Heaters
  • Delivers hot water on demand with 6,000 W heating power
  • Activates at just 0.48 gpm minimum flow rate
  • Draws 22 A at 277 V single-phase supply
  • Compact 14.19 × 7.94 × 3.88 in fits tight indoor spaces
  • Provides 82–130 °F output without adjustable thermostat

277 V tankless heater for commercial indoor use

This Stiebel Eltron DHC 6-3 Classic unit is a new electric tankless water heater rated for 277 V AC single-phase supply. It is intended for commercial indoor installations where a compact footprint is required. The heater activates at a minimum flow of .48 gpm through a 1/2 in female NPT cold inlet.

Steady output at 6 kW continuous draw

Under sustained demand the heater delivers up to 130 Degrees F and draws 22 A at its 6,000 W rating. Because the thermostat is not adjustable, the outlet temperature is fixed by the incoming water temperature and flow rate. The minimum delivered temperature is 82 Degrees F when conditions allow.

Verify voltage, phase and inlet before ordering

Confirm that the site provides 277 V AC single-phase power and a 1/2 in female NPT cold-water connection. The unit measures 14.19 in high, 7.94 in wide and 3.88 in deep, so check that the mounting location accommodates these dimensions. California Proposition 65 warnings apply to this product.

Highlights

  • Delivers hot water on demand with 6,000 W heating power
  • Activates at just 0.48 gpm minimum flow rate
  • Draws 22 A at 277 V single-phase supply
  • Compact 14.19 × 7.94 × 3.88 in fits tight indoor spaces
  • Provides 82–130 °F output without adjustable thermostat

Specifications

BrandSTIEBEL ELTRON
TypeWater Heaters

Questions about this item

How much current does the 277 V heater draw when running continuously?

The unit draws 22 A at full power, so the circuit must be sized for that load during all-day use.

What inlet fitting does the 1/2 in NPT cold connection require?

It needs a 1/2 in male NPT thread on the supply line to mate with the female inlet on the heater.

Will the 0.48 gpm activation threshold work with older low-flow fixtures?

Yes, the heater activates at 0.48 gpm, which is low enough for many vintage faucets and shower heads.

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