Do Tankless Water Heaters Require Gas

Facts about tankless water heater venting.

Do tankless water heaters require gas.

A tankless gas water heater just as its name implies does not come with a tank to store water. Before you decide against a tankless water heater for your next project consider these tankless water heater venting requirements. Gas tankless water heaters don t have to use indoor air for combustion. The gases contain carbon monoxide.

The reason is because like a standard water heater they create dangerous combustion gases when they fire. Instead it heats the water as you request for it thereby giving you continuous hot water supply. How tankless water heater maintenance helps. Electric tankless water heaters do not need to be vented but gas tankless heaters do.

Condensing vs non condensing tankless water heaters. Without a power source these components will not operate preventing the tankless water heater from producing hot water. In contrast storage water heaters last 10 15 years. A tankless gas water heater heats incoming water in the pipe as it is needed.

Tankless water heaters can be vented in two ways. Tankless gas water heaters have an internal pc board electronic ignition and an electronic thermostat which is required to operate the water heater. Thanks to the simplicity of the unit and no need for ventilation there are multiple options as to where you can install an electric heater. However it doesn t have to be an expensive hassle to vent.

Tankless water heaters can avoid the standby heat losses associated with storage water heaters. Most tankless water heaters electric or gas do not need a thermal expansion tank. Tables 2 and 3 provide the capacity by pipe size and length based on the maximum allowable pressure drops. However although gas fired tankless water heaters tend to have higher flow rates than electric ones they can waste energy if they have a constantly burning pilot light.

When the hot water supply is opened the tankless unit starts to produce hot water. No a tankless gas water heater still requires some electricity to operate. Tankless water heaters can be powered by gas or electricity but even gas powered tankless water heaters rely on an electric control panel to operate the system. Tankless electric water heaters are the smallest type of all water heaters.

Typically the gas piping has to be upgraded to support the tankless water heater due to the volume of fuel that is required. You can schedule service or take a do it yourself approach to deal with maintenance. The primary type of maintenance service that s needed for most of these units relates to cleaning the system in different ways. So regardless of the type of tankless water heater you have you ll be out of hot water in the event of a power outage.