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Compact white undersink electric tankless water heater with compression inlet and cord visible

Chronomite Instant-Flow Micro

Chronomite Instant-Flow Micro CM-12L/240 110F Undersink water heater part

SKU CH-GT4R-M28SZ

Undersink electric tankless heater delivering 1 gpm at 110 °F from a 240 V, 2,880 W unit measuring 9.63 × 6.25 × 2.75 in

  • Product typeWater Heaters
  • Instant hot water at 110 °F delivered on demand
  • Compact 2.75 × 6.25 × 9.63 in design fits under any sink
  • 240 V single-phase operation draws only 12 A at 2 880 W
  • Activates at just .2 gpm for low-flow efficiency
  • 3/8 in compression inlet with 14 AWG cord simplifies installation

Compact Undersink Tankless Heater

The Chronomite CM-12L/240 110F is a compact electric tankless water heater designed for undersink installation. It delivers hot water on demand at a fixed 110°F temperature for commercial and residential use.

Suits Single Fixtures Only

This unit suits a single sink needing 1 gpm flow with 0.2 gpm activation. It is not for buyers who need adjustable temperature, higher flow rates, or supply for multiple outlets simultaneously.

Fixed 110°F Output Temperature

The heater provides a non-adjustable maximum and minimum delivered temperature of 110°F. Verify this fixed setpoint matches the exact requirement for the intended application before purchase.

How it compares

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

Price $233.99
Pricier than about 62% of the 85 comparable items (median $163.99).

Specifications

Product
Brand nameCHRONOMITE
Product typeWater Heaters

Questions about this item

How do I install the CM-12L/240 110F undersink heater and what step is often missed?

Mount the unit indoors, connect the 3/8 in compression cold inlet, and wire the 14 AWG cord to a 240V AC single-phase supply with a 12 A breaker; the step often missed is confirming the circuit can deliver 2,880 W continuously.

What maintenance or replacement will the CM-12L/240 110F need over time?

The fixed 110 °F output means the heating element and flow sensor are the primary wear items; plan to descale the heat exchanger annually and replace the element if temperature drops or flow activation fails at 0.2 gpm.

What limit appears first when the CM-12L/240 110F runs continuously?

The 1 gpm maximum flow rate is the first constraint; sustained demand above that will drop outlet temperature below the fixed 110 °F set point even though the 2,880 W element remains powered.

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