Rheem 3.5kW Point-of-Use Thermostatic Tankless Electric Water Heater - 120V

An electric tankless water heater converts stated kW into a temperature rise at a given flow, so a cold-climate inlet cuts the usable GPM sharply. Read the kW rating, the 240 V requirement and the amperage the listing states, then have a licensed electrician confirm your panel capacity before you order. Nothing here is an installation instruction.

Exact listing: Rheem 3.5kW Point-of-Use Thermostatic Tankless Electric Water Heater - 120V

Listing identifier: B0CJJY7RZZ. View listing source.

Title identifies the seller's listing; it is not an independent performance test. Check the selected configuration, current price and seller on Amazon.

Fuel

Electric — 3.5kW Amazon listing title

Stated heating power

3.5 kW — 3.5kW Amazon listing title

Stated voltage

120 V — 120V Amazon listing title

Compare the stated kW with the output the flow-rate calculator gives for your climate: a cold inlet cuts usable GPM sharply. Have a licensed electrician confirm that your panel and service can carry the amperage this listing states; nothing on this page is wiring guidance.

These notes summarize source research, not hands-on testing. Read our research method.