Friends, do you also have such a doubt, how can zero cold water gas water heater achieve zero cold water? What are the usage patterns? What are the pros and cons of using it? Don't worry, in today's practical evaluation report, I will roughly introduce you to the equipment principle, four usage modes and energy consumption problems of zero cold water gas water heaters. I believe this article will be able to answer all your questions about zero cold water gas water heaters.
When it comes to achieving zero cold water, we first need to understand how it works. One way to do this is to run the return line separatelyto form a circuit from the water heater outlet to the end of the hot water pipe (shower, faucet, etc.) and back to the water heater inlet. The other way is to use the existing hot and cold water pipes, through the action of check valves and pumps, the circulation of cold and hot water in the pipes will be realized. The difference in function is that the former requires the addition of a special return pipe, while the latter uses the existing cold water pipe to complete the circuit.
Either way, the zero cold water heater adds two parts: a one-way return pipe and a circulating pump than an ordinary water heater. These two components connect the hot and cold water pipes throughout the house to form a loop, and the cooled hot water is sent back to the water heater for heating through the circulating pump, so that the hot water is ready to use.
However,Zero cold water heaters also have their shortcomings。First and foremost is the issue of energy consumption. Compared with traditional water heaters, zero cold water water heaters have a large increase in natural energy consumption due to the increased circulation pump and heating frequency. Do a simple math and you'll find that the increase in your utility bill each month is much higher than the amount of cold water you waste. Due to the need to lay a special return pipe, the installation cost of a zero cold water heater will also be relatively high. For some older houses, additional renovation work may be required, which will inevitably add additional costs.
At the same time,Strictly speaking, a zero-cold water heater cannot completely achieve zero cold water。Because even outside the circulating pipe, there will still be cold water at the outlet, although it is not much, but it is not zero cold water in the strict sense.
Of course, considering the energy problem, most of the current zero cold water water heaters have four usage modes for us to choose from. among othersAll-weather cycle modeIt is undoubtedly the most expensive and gas-intensive, but it can provide us with 24-hour hot water service. WhileSingle-cycle modeIt's more like a traditional water heater, except that it eliminates the need to drain water in advance. Timed loop modeYou can set the time in advance according to your water habits to avoid having to preheat up every time. The last one isElectric cycle mode, you need to turn on the faucet and let the water for a few seconds before the hot water can be discharged.
Although these four modes consume more energy overall, they can provide a better user experience. For families who use hot water frequently and have a sufficient budget, a zero-cold water water heater is undoubtedly a good choice. However, if you already have a water purifier installed in your home, then I still do not recommend installing a zero cold water heater because the use of hot water may affect the life of the water purifier.
In general, as an emerging home appliance product, the advantages of zero cold water gas water heater that can provide hot water in a short time are obviously incomparable to traditional water heaters. However, it also has the disadvantages of high energy consumption and high installation costs. When choosing whether to buy, home users need to make a decision based on their actual situation and needs to ensure that the products they buy can meet our daily needs without wasting too much energy.
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