Which is better, an electric water heater or a gas water heater? What accessories are needed to install a gas water heater?

A gas water heater, also known as a gas water heater, is a gas appliance that uses gas as fuel and transfers heat to cold water flowing through a heat exchanger through combustion heating to prepare hot water. Which is better, a household electric water heater or a gas water heater? Next, you will first understand the scenarios in which the two can be used.

Contents of this article

1. Which is better, an electric water heater or a gas water heater?

2. What accessories are needed to install a gas water heater?

3. Gas water heater principle diagram

Which is better, an electric water heater or a gas water heater?

Electric water heaters are water heaters that use electricity as energy for heating. Electric water heaters can be divided into three types according to the heating power: storage type, thermal type, and rapid heating type. Rapid heating electric water heaters are smaller in size and more powerful than storage type electric water heaters, so they are indeed faster in heating speed than storage type electric water heaters.

Gas water heaters, also known as gas water heaters, are gas appliances that use gas as fuel and transfer heat to cold water flowing through a heat exchanger through combustion heating to prepare hot water. Gas water heaters are mainly composed of valve body assemblies, main burners, low-fire burners, heat exchangers, safety devices, etc. They also include flues for flue-type water heaters and forced exhaust devices for forced exhaust water heaters.

To sum up, both have their own characteristics and advantages.

What accessories are needed to install a gas water heater

To install gas water heater accessories, you need a water drill, anti-explosion pipe, one hot and cold triangle valve, one ball valve, one gas tee, and one roll of raw tape. When choosing a gas water heater, you must choose a plug with a ground wire, that is, a plug with three corners, to prevent accidents in the kitchen during the summer thunderstorm season.

You need to prepare one hot and cold triangle valve, one metal bellows for water inlet and outlet, and measure the length yourself, which is the distance from the bottom of the water heater to the interface of your hot and cold water pipes. You need to prepare one quick-opening gas valve, but you need to pay attention to whether the air inlet of your gas water heater is consistent with the diameter of your gas pipe. There are 6-6-point gas valves and 4-6-point gas valves. Now the air inlet of general gas water heaters is 6 points. If your gas pipe is 6 points, buy a 6-6-point quick-opening gas valve. If your gas pipe is 4 points, buy a 4-6-point quick-opening gas valve. If you do not prepare these materials in advance, the installer will provide them to you during installation, but you need to charge them, and the price is much higher than the market price. Other installation materials, such as exhaust pipes, expansion bolts, etc. are provided with the machine.

Gas water heater principle diagram

1. Turn on the water heater switch. Cold water enters the water heater and then flows through the water volume sensor to the heating water pipe in the heat exchanger.

2. When the water level sensor senses the water flow, the magnetic rotor inside it starts to rotate, and the integrated component located outside the water level sensor sends an electronic pulse to the control circuit (i.e., the microcomputer program).

3. When the rotor speed reaches a certain value, the computer-controlled combustion fan starts to start. When the fan speed reaches the set value, the main gas valve and the gas proportional valve will open, and the gas will enter the burner. At the same time, the ignition needle will spark and discharge to ignite.

4. At this time, the flame detection rod located on the upper part of the burner detects the flame signal, lights the combustion indicator light through the control circuit, and keeps the combustion going.