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Compact white undersink electric tankless water heater rectangular box with pipe fittings

Chronomite Instant-Flow Micro

Chronomite Instant-Flow Micro CM-40L/208 110F Electric Tankless Water Heater

SKU CH-KHAS-MEXPH

Undersink electric tankless heater delivers 0.2 to 2 gpm at 110–160 °F from 208 V single-phase power

  • Product typeWater Heaters
  • Instant hot water at 110 °F minimum delivered temperature
  • Compact 6.25 × 9.63 × 2.75 in fits under any sink
  • Single-phase 208 V AC installs on standard commercial or residential wiring
  • 2 gpm activation delivers hot water the moment the tap opens
  • 8,320 W element supplies up to 2 gpm for steady flow

Undersink Electric Tankless Heater

This Chronomite Instant-Flow Micro unit delivers on-demand hot water for a single undersink location. It operates on 208 V AC single-phase power and draws 40 A with a power consumption of 8,320 W. The heater activates at a minimum flow of 0.2 gpm and supplies up to 2 gpm.

Commercial and Residential Indoor Use

The heater suits commercial and residential indoor installations where a compact 6.25 in high, 9.63 in wide, 2.75 in deep unit fits under a sink. Buyers who need adjustable temperature control or higher flow rates for multiple fixtures should look at other models.

Fixed 110 °F Delivery Temperature

The thermostat is not adjustable and the maximum delivered temperature is factory-set to 110 °F, with a safety limit of 160 °F. This fixed output decides whether the heater matches the intended application.

How it compares

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

Price $316.99
Pricier than about 83% of the 85 comparable items (median $163.99).

Specifications

Product
Brand nameCHRONOMITE
Product typeWater Heaters

Questions about this item

How often does the heating element need replacement under normal use?

The unit has no user-serviceable heating element; mineral scale on the heat exchanger is the only wear item and is managed by periodic descaling rather than scheduled replacement.

What limits continuous output during a long shower?

The 40 A, 8,320 W heater at 208 V caps the temperature rise at about 2 gpm; sustained flow above that rate drops the outlet below the 110 °F minimum.

How much waste heat does the cabinet absorb when the heater runs all day?

At full power the unit draws 8,320 W; virtually all of that energy enters the water, so cabinet heat gain is minimal and no active cooling is required.

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