water heater is a common electrical appliance in the home, and there are many types on the market. Among them, the zero-cold water heater is said to be free from waiting. It can be hot water once it is opened. Therefore, it has been favored by many people once it is released, but many people remember that the zero-cold water heater is a waste of money after using it for a long time. It turns out that it has these "defects".
1. High energy consumption
One of the major drawbacks of zero-cold water water heater is that it consumes relatively high energy. Although it allows us to waste cold water when washing hands, if we want to keep it on and hot, we need to use the return water circulation device to achieve the purpose of heating, which requires a lot of power to start, which will lead to a sharp increase in electricity bills. In addition, the zero-cold water water heater needs to keep running and continuously consume the gas at home, which is several times that of the ordinary gas water heater . Although it is much more comfortable, it is also costly to use.
2. Installation is relatively difficult
When installing the zero-cold water gas water heater, the installation difficulty will be greatly increased because the return pipe needs to be added. Many families have no pre-embedded, so that the hot and cold water pipes can be connected together with the check valve , and use the cold water pipe as the return pipe, so that the water inside the hot water pipe can be returned to the water heater through the cold water pipe, which is very troublesome to install.
3. Secondary pollution of hot water
Many people have no pre-buried return water pipes in their homes, because they will connect the check valve and the hot water pipes together, and let the cold water rinse and heat it. However, this will allow the hot and cold water to mix together, resulting in secondary pollution of hot water, which will affect the quality of the water to a certain extent.
Should you use a zero-cold water gas water heater at home
If you have a large family and have a high demand for hot water and can adjust it at any time, you can consider installing a zero-cold water gas water heater. If your home has a limited economic budget and the demand for hot water is not high, there is no need to install a zero-cold water gas water heater, and the cost-effectiveness is very low, just choose an ordinary gas water heater or electric water heater.
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