Free shipping on all smart devices

Stay in full control of your environment

Remote control of your electric water heater up to 20.8 A or 240 V

Water heater icon
View of the Éco Sinopé feature in the Neviweb app

Here comes the savings!

Add the Zigbee water heater controller to Éco Sinopé and take full advantage of your power utility’s energy efficiency program.

It could even pay for itself in the first year!* Imagine the savings it will bring in subsequent years.

Learn more
Shower head with water

Small device. Big savings.

Did you know that hot water consumption accounts for 20% of the electricity bill and is the 2nd largest source of electricity consumption in a home? 

Enjoy substantial savings on your electricity bill by automatically turning off your water heater remotely during peak times or via your mobile device when you leave home for a few days.

Water heater surrounded by a water leak detector with perimeter cable

Maximize your protection

The water detection cable can shut off power to the Calypso Water Heater Controller as soon as a leak is detected.

Shop now

Your home, your ecosystem.

The Zigbee water heater controller easily integrates with your Zigbee ecosystem and optimizes both your energy consumption and savings. It works with Google Assistant and Amazon Alexa voice assistants as well as the most popular home automation platforms.

Badge fonctionne avec Neviweb
Badge fonctionne avec SmartThings
Badge fonctionne avec Google Home
Badge fonctionne avec Alexa
Views of the Neviweb app

Unleash the full potential of your water heater controller with the Neviweb app.

Get all the features you need for a more effective control of your water heater.

  • Automations
  • Consumption Reports
  • Scenes
  • Geofencing

Discover Neviweb

Calypso - Zigbee Water Heater Controller

Features and technical specifications
Designed for savings
Master peak times with ease.

Operate your water heater only when electricity rates are low by scheduling times with Calypso. This way, you can achieve significant savings with peace of mind!

Push the limits.

You’re heading to the cottage for the weekend? Take advantage of generous savings on your electricity bill thanks to the geofencing feature that takes care of shutting off the power of your home's water heater as soon as you leave the predefined area!

Detailed graphs, guaranteed savings.

Track your energy consumption and savings in real time by viewing your device's energy reports.See how the Zigbee water heater controller is the most profitable smart device!

Neviweb features
  • Program different schedules for each day of the week, up to 12 periods per day
  • Adjust the status of multiple devices at once by configuring grouped actions through scenes
  • See your consumption and savings in real time with consumption graphs
  • Compatible with Amazon Alexa and Google Assistant
  • Integrates with the Éco Sinopé feature to help you reduce your energy consumption during peak events and save on your electricity bill
Technical specifications

Dimensions:
  • Height : 76.2 mm (3.38 in)
  • Width : 34 mm (1.34 in)
  • Depth : 70.1 mm (2.76 in)
Power supply:
  • 120 V / 240 V (60 Hz)
  • Maximum resistive load: 20.8 A
Temperatures:
  • Operating temperature: 0 °C to 40 °C (32 °F to 104 °F)
  • Storage: -20 °C to 50 °C (-4 °F to 122 °F)
Communication:
  • Zigbee
  • Frequency: 2.4 GHz
  • Norm: IEEE 802.11 b/g/n
Connectivity requirements:
  • Permanent Internet connexion
  • Smartphone or tablet
  • Neviweb app available on the App Store and Google Play

North American version.

Certifications and warranty

Tested in compliance with the ANSI/UL Std.916 norm
Certified under CAN/CSA Std. C22.2 No205

Included in the box

  • 1 smart water heater controller RM3500ZB
  • 1 temperature sensor AC3500-01 of 1.5 m long
  • 1 1/2-inch steel NPSM threaded locknut
  • 3 connectors
  • Installation Guide – English version
  • Installation Guide – French version

Ressources

FAQs

What is the purpose of the Calypso water heater controller?

Calypso allows you to remotely control the power supply to your electric water heater. You can save money on your electricity bill by participating in your utility's peak events, and by turning off your water heater remotely via your mobile devices when you leave for a few days.

What's the best way to save money with Calypso?

Using Calypso with the free Éco Sinopé feature is the best way to achieve savings. Éco Sinopé works in conjunction with electricity suppliers' dynamic pricing programs to control energy demand during peak periods, or to turn off the water heater during prolonged absences (3 days or more).

Does it pay to turn off the water heater at night?

No. The energy required to heat the water when the appliance is reactivated in the morning cancels out any potential savings. In addition, it's not advisable to turn off the water heater overnight, or to run it on a set schedule, to avoid bacterial growth.

How does Calypso work during a peak event?

When your Calypso water heater controller participates in a peak event, the “link” LED flashes green and the DR icon appears on the product page in the Neviweb app. See details in this article

Does Calypso prevent the development of bacteria?

Yes, the Calypso probe ensures a minimum temperature threshold to limit bacterial growth. The Neviweb app also features a “low-temperature protection” setting which, when activated, will restart the water heater if the water temperature detected by the probe falls below a predetermined threshold (between 45°C and 55°C).