Tankless Water Heaters Advantages

Tankless water heaters offer many advantages, including increased energy efficiency and ease of getting almost unlimited supply of hot water. Those are the main reasons why tankless water heaters have been popular in Europe and Asia for a long time, and now are increasingly popular in USA.
Tankless water heaters can be fueled by natural gas or propane. The operating principle of tankless water heaters is quite simple: cold water enters the tankless water heater and flows through the coils, exiting the heater at temperatures of 100-140 degree F.

A moderate size tankless water heater can deliver 6-8 gallons of heated water per minute. This is enough to supply a shower and 1-2 sink faucets.

Tankless water heaters with higher output rates, such as 10 gallons per minute, are able to supply multiple bathrooms that are used concurrently with heated hot water.

There are always other options available, such as to install multiple tankless water heaters to supply various zones of your home with hot water.

Gas tankless water heaters must be independently vented out of the house with gas rated vent pipe. In many cases, tankless water heaters should be installed with twin-pipe vent system, where fresh air is piped directly into a sealed burner from outdoors.

From cost-of-operation and efficiency standpoint, installing gas-fueled tankless water heaters makes a lot of sense. But installing tankless water heaters yourself is extremely challenging and dangerous task. A permit and on-site inspection are required.