Electric Tankless Hot Water Systems

Also known as on-demand water heaters, these are a type of water heating system that heats water as it is needed, rather than storing it in a tank and keeping it hot all the time.

Electric hot water on-demand systems work by heating water as it passes through the unit’s heating element, providing hot water without the need for a continuously heated hot water tank. When hot water is demanded, cold water flows into the unit through a heating element, powered by electricity, and heats the water. The heated water then flows to the faucet or appliance demanding hot water.

The other side benefit of on-demand hot water, the unit will continue to provide a continuous supply of hot water without running out of water. When the water flow ceases, the heating element will stop heating the water, conserving energy.

Energy efficiency is a key advantage of electric hot water on-demand systems since they only heat water when it’s needed as opposed to traditional hot water storage tanks, which continually heat and reheat water throughout the day. Smart thermostats are designed to be set for vacation or away modes that adjust home heating and cooling temperatures. On-demand hot water systems will remain off and do not require an ‘away’ mode.

There are many benefits besides running on cleaner energy:

  1. Efficiency: Electric tankless hot water systems are highly efficient, as they only use energy when hot water is needed. This means that they can save energy compared to traditional tank-style water heaters.
  2. Capacity: The capacity of an electric tankless hot water system refers to the maximum flow rate of hot water it can produce. The capacity when choosing a tankless hot water system must meet household demand needs, especially during peak usage periods.
  3. Size and installation: Electric tankless hot water systems are typically smaller in size than tank-style water heaters, which makes them easier to install in smaller spaces. It’s likely code – as well as strongly recommended – that a dedicated electrical circuit is considered when planning the installation of a tankless hot water system.
  4. Cost: The cost of an electric tankless hot water system is typically higher than that of a traditional tank-style water heater, but the savings in energy and space can offset the initial investment over time.
  5. Maintenance: Electric tankless hot water systems require less maintenance than tank-style water heaters, as they have fewer parts that can wear out or break down. However, it’s still important to have the system regularly inspected and serviced to ensure it is working efficiently and safely.
  6. Environmental impact: Electric tankless hot water systems do not produce emissions, as they do not burn fuel to heat water. This makes them a more environmentally friendly option compared to tank-style water heaters that use natural gas or propane.
  7. Water filtration and purification: The peace of mind benefit of knowing the household’s water is safe and pure will also extend the usable life of any hot water solution especially if a mineral filter stage is introduced at the POE.