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Chronomite - SR-20L/240 - HTR 240-Volt 20-Amp SR Series Instant-Flow Low Flow Tankless Water Heater

SKU SR-20L/240
Original price $ 240.33 - Original price $ 240.33
Original price
$ 240.33
$ 240.33 - $ 240.33
Current price $ 240.33

Install Manual

Choosing the right Tankless Electric Water Heater for your home.

Chronomite electric tankless water heaters are the space-saving solution for point of use under the counter sink and basin applications where instant hot water is needed. Chronomite electric tankless water heaters are designed to be lightweight, compact and are constructed with durable steel housing for optimal vandal resistance. No pressure and temperature relief valves are needed (unless required by code) saving time and money on installation.Instant hot water when you need it, where you need it!

Chronomite Instant-Flow® SR Low-Flow electric tankless water heaters are designed to provide Reliable Instant hot water when installed at the Point of Use.

This instant electric tankless water heater is perfect for lavatories and sinks. It is ideal for two handle and single handle faucets and is the perfect under sink water heater. The SR series is designed to provide a predetermined temperature rise to the incoming cold water and to decrease /increase the water outlet temperature manually increase/decrease water flow.

The Instant-Flow® SR Electric Water Heaters meet the ADA barrier free requirements and are 99% energy-efficient.


From the Manufacturer

Chronomite was the first to patent a microprocessor technology which allows for a pre-set or controlled output temperature that delivers unlimited hot water without risk of scalding-in two seconds as opposed to the six seconds offered by other tankless water heaters. Chronomite is installed at point of use and is only operational when hot water is requested, thus dramatically reducing hot water delivery time and inefficient use of electricity.

For optimal performance, Chronomite electric tankless water heaters should always be installed within 18 inches from the point of use.


Where to use a Chronomite Instant-Flow® SR water heater?

  • Apartment
  • Bathroom
  • Commercial
  • Dishwasher
  • Hospitality Bar Sink
  • Industrial
  • Kitchen/Bar Sink
  • Non-Public Lavatory
  • Public Lavatory
  • Residential
  • Fast food restaurant
  • Scrub Sink
  • Service Sink
  • Shower



  • 0.5-GPM flow rate
  • Designed for undersink hardwiring, horizontal installation
  • Two mounted chrome compression fittings
  • Rear electric knock-out
  • 3/8-Inch cold water inlet and outlet connections
  • Ideal for kitchen sinks, bar sinks, or dual lavs



The SR series is designed to provide a predetermined temperature rise to the incoming cold water. To decrease the water temperature, manually increase the water flow.

Chronomite Tankless Water Heaters are U.L. listed. The U.L. listing requires that the heater be "hardwired" to a dedicated breaker. To gain optimum performance and to keep the product under warranty, it must be installed in this manner. Please refer to our Installation and Operation sheet for the model you are installing.

Confirm that the heater has been hardwired to a dedicated, non-GFI breaker. Also check that the breaker size is appropriate for the heater being installed (Example: if it is a 30 amp heater, it will need a 30 amp breaker)



California residents Proposition 65 warning
Item model number SR-20L/240 HT-R
Voltage 240 volts
Wattage 4800 watts
Amp Capacity 20 AMPS
Item Package Quantity 1
Flow Rate .5 GPM
Certification certified frustration-free

Item Weight 4.4 pounds
Product Dimensions 9.6 x 2.8 x 6.2 inches

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