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Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater – 3.5KW@120-Volt – For RV Boat Cabin etc.


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The Ecosmart POU, 3.5 Point of Use Electric Tankless Water Heater, is a highly efficient and compact solution for providing instant hot water in various settings such as RVs, boats, cabins, and more. Operating at 3.5KW and 120-Volt, this unit is designed to heat water directly at the point of use, eliminating the need for a bulky storage tank and reducing energy consumption.

Its compact size and easy installation make it ideal for spaces where traditional water heaters cannot fit. The Ecosmart POU 3.5 ensures a continuous hot water supply whenever and wherever you need it, making it a practical and eco-friendly choice for your hot water needs.

Electric Tankless Water Heater

Tankless water heaters are more energy-efficient and convenient than traditional water heaters. Tankless water heaters have a variety of advantages over conventional models.

They operate more efficiently and require less maintenance than traditional models. Tankless water heaters are also more convenient because they don’t need to be turned off when unused, so the water stays warm for extended periods.

Some disadvantages of tankless water heaters include a higher initial cost, the need for multiple separate hot water valves, and possible maintenance issues.

Due to their efficiency, the high upfront cost can be offset by the money saved monthly. Some models require users to access three or more water valves to work like traditional models, so hot water is available when needed.

This can be problematic for those who don’t have easy access to multiple pieces of equipment. Maintenance can be quite costly, depending on the model and customer.

Electric Tankless Water Heater Reviews

Ecosmart Tankless Water Heater – Clever And Easy

This electric tankless water heater is a valid point-of-use model. It is designed explicitly for under-the-sink, single applications with a maximum flow rate of 0.5 gallons per minute (GPM) and includes a 0.5 GPM sink aerator.

Its compact size allows for under-the-sink installations. The Point of Use models are ideal for:

  1. Water Bars
  2. Strip Malls
  3. Doctor’s Office
  4. Boats
  5. Recreational Vehicles (RVs)
  6. Bathroom Sinks
  7. Cabins

Before purchase and installation, please verify that this model is the right size for your hot water and electrical requirements.


In warmer climates, it can provide hot water for one sink at 0.5 GPM. It requires a 1 x 30 amp breaker and 10 AWG wires. In colder climates, the POU 6 is recommended.

Amperage Draw 29 amp. kW – 3.5 kW
Connection Fittings 1/2″ NPT. The maximum temperature rise @ .5 GMP is 47.8°F, the maximum rise @ 1GPM is 23.9°F, and the maximum rise @ 1.5 GPM is 15.9°F.


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Last Updated on April 11, 2024 by Homey Roamy Camping Tips

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