180 is enough
Don't buy a small one that isn't enough or has problems
Don't just worry about capacity
Also pay attention to the number of vacuum tubes
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Generally, the more vacuum tubes there are, the higher the water temperature will be.
So at least 18 tubes or more for 180 are enough
Otherwise it won't be hot
Especially in winter
Hope this can help you help
What water heater should I choose if there is a bathtub in the master bedroom bathroom? Because it is too far from the kitchen, the geothermal water from the gas water heater does not go into the master bedroom bathroom.
For solar energy, bigger is not always better. First, the larger the capacity, the higher the price. Second, if the capacity is too large, it won't be able to use as much heat. water every day. It's also a waste, the choix of solar energy should therefore be based on the actual usage, such as the purpose of using hot water, the number of people using it, etc. for bathing and washing face, 30 ~ 40 L/person is enough (select according to personal bathing conditions). If there is a bathtub, etc., it is recommended to choose 50L. If you still want to use solar hot water in winter. for washing vegetables, dishes, clothes, etc. will be bigger!
There are four types of water heaters: gas water heaters, electric water heaters, solar water heaters, heat pump water heaters. Depending on your situation, you can choose between an electric water heater and a solar water heater.
1. Electric water heaters
Electric water heaters include volumetric electric water heaters and instantaneous electric water heaters. Currently, volumetric electric water heaters holdhave the largest market share. Since you are not using an instantaneous electric water heater, a storage water heater is a better choice.
Electric volume water heaters are also called electric storage water heaters. The principle is similar to an electric kettle, they boil heat first and then use water. the first is much more complicated. The key elements of a volumetric electric water heater are the material of the interior tank and the manufacturing process. The material of the inner tank is galvanized carbon steel plate, stainless steel plate, titanium alloy plate and enamel.
The advantage of volumetric electric water heaters is safety, but the disadvantages are large size, easy descaling inside and difficult cleaning, slow heating and the need to adjust the water temperature during water useu.
2. Solar water heater
Solar water heater is of course a good thing, and in the long run, the future is undoubtedly very good. However, there are the following problems: the product is not perfect, and there are still many problems that need to be solved and improved from the host to accessories; ; it is not suitable for places with little sunlight. *****Look at this version of the pinned post, there is already a good method.---->