How do gas water heaters work?

How do gas water heaters work?

Water heaters are a device that converts energy into heat, which turns into water. This amounts to placing a pan of water on the stove and warming it with the heat of the burner. The most common energy source used in water heaters is natural gas. However, some water heaters run on propane and electricity.

Generally, natural gas is the most economical source of fuel and much cheaper than electricity or propane. A gas water heater heats the water using a burner under the tank. The gas is pumped into the water heater via a gas valve, which is attached to the wall.

A thermostat is installed inside the water tank to detect the temperature and regulate the amount of fuel supplied to the burner. The burner is lit by a pilot light or by a spark. It is similar to the ignition devices used on gas barbecues.

Gas water heaters require a ventilation system, which collects the toxic emissions from the burner and routes them through the tank and the ventilation duct. Typically, this ventilation system is installed in the roof and the emissions are sent through a PVC pipe. However, manufacturers have developed gas water heaters using ventilated air vents through a wall.

Gas water heaters are connected to a cold water supply pipe. The water is stored in a cylindrical tank and the heated water is supplied to the taps and fixtures by an internal pipe system, then pumped directly to the faucets and appliances.

In addition to conventional gas water heaters, the tankless version is another option. This type of gas water heater circulates water through a series of burners when you open a hot water faucet or appliance that uses heated water; that is to say dishwasher or washer.

Tankless gas water heaters have advantages and disadvantages. On the one hand, they have the ability to provide an infinite source of hot water. In addition, they are generally very energy efficient. The disadvantage is that it takes longer for the water to heat up, because the tankless gas water heaters only start to heat up when you open the faucet. Tankless gas water heaters do not store water. Instead, they direct water directly to faucets and appliances that use heated water.

Conventional and tankless gas water heaters require annual maintenance and cleaning. Generally, they last on average ten years if they are maintained regularly.

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