Comprehensive Guide to Choosing Tankless Water Heaters

If you're interested in enjoying hot water instantly without soaring energy costs, a tankless water heater is an excellent choice.

Understanding tankless systems

Popular in Europe and Japan, tankless units deliver hot water on demand without waiting for a storage tank to heat up. They heat water directly as it passes through a heat exchanger, adjustable to your desired temperature. Cold water heats up as it flows, providing continuous hot water when the system is powered.

These systems can operate on propane, natural gas, or electricity.

Since they heat water only when needed, they eliminate standby heat loss, boosting efficiency. Without a storage tank, they save space and tend to last longer due to less corrosion.

Is a tankless heater suitable for your household?

If your daily hot water usage is under 40 gallons, a tankless unit is an ideal option. You can choose a point-of-use model for specific areas or a whole-house system for larger households.

For bigger households, installing multiple point-of-use units can reduce energy expenses. Although initial costs are higher than traditional storage heaters, they offer benefits like instant hot water and lower utility bills over time. Key factors to consider include fuel type, capacity, energy consumption, and installation costs.

Installation tips

Select a reputable brand and ensure professional installation. DIY setup is not recommended. Proper installation must adhere to local codes and safety standards, especially for gas models, which require skilled, licensed technicians. Consider climate and fuel type when installing.

Potential drawbacks

Flow rate requirements are critical; insufficient flow could waste water. Gas-powered units pose safety risks if not handled properly, and maintenance costs can be high. Multiple fixtures may complicate hot water distribution.