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Compact rectangular tankless water heater with copper fittings, matte grey metal casing, wall-mount brackets

Chronomite

Chronomite SR-20L/277 HTR-I 277VAC 20A Electric Tankless Water Heater

SKU CH-T7SB-YHYPJ

Delivers 1.5 gpm of 140–160 °F water from a 277 V, 20 A single-phase supply with a 0.35 gpm activation threshold

  • Instant hot water at point of use
  • Activates at just 0.35 gpm low flow
  • Delivers up to 1.5 gpm continuous flow
  • Compact 6.25 × 9.63 × 2.75 in fits tight spaces
  • 277 VAC 20 A single-phase commercial grade

Compact Commercial Water Heater

The Chronomite SR-20L/277 HTR-I is an electric tankless water heater designed for commercial and residential hospitality sinks. It operates on a 277V AC single-phase supply and draws 20 A for a power consumption of 540 W. The unit delivers hot water instantly for manual hand-washing faucets.

Installation Requirements

This heater requires a 277V AC electrical connection and a cold water inlet fitting of 3/8 in. It activates at a minimum flow of .35 gpm and supports a maximum flow rate of 1.5 gpm. The compact dimensions of 6.25 in height, 9.63 in width and 2.75 in depth allow it to fit in tight indoor spaces.

Fixed Temperature Output

The thermostat is not adjustable, so the delivered water temperature stays within a fixed range of 140 to 160 Degrees F. This preset range suits hand-washing applications where consistent, safe temperatures are required without user adjustment.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $197.99
Pricier than about 86% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameCHRONOMITE LABS
Product typeOther

Questions about this item

What is the maximum power draw of the 277V 20A heating element during sustained operation?

The unit draws 5,540 watts at full load when the 20 amp element is active.

How much heat does the 5,540 watt element add to the room during all-day use?

Nearly all 5,540 watts becomes heat in the water; the compact 6.25 by 9.63 by 2.75 inch case releases minimal waste heat to the space.

What size electrical circuit and voltage must already be in place for this 277V model?

A dedicated 277 volt single-phase circuit rated for 20 amps is required before installation.

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