History of storage tank water heaters
Water heaters are one of those neglected home appliances that are often tucked away in a corner of the garage. We don't pay much attention to it until it's broken. It has been in its current form for a long time. It was invented in 1889 by Edwin Ruud and it hasn't changed much since then. It consists of a cylindrical container of 40 gallons or more with a gas burner or sometimes an electrical component. It warms the water slowly and keeps it hot all the time.
The stove has a pilot light that constantly burns gas. and the main burner will work periodically to heat the water again. because the water in the container has cooled that goes day after day even though the water has never been used That's because the water loses heat around it like having a kettle filled with water on the stove all the time. The new tank water heaters are better insulated than their predecessors to reduce standby heat loss. But it will not lose less heat and the water will need to be reheated continuously. In today's era when energy is expensive and more and more is a total waste of energy and money. It puts an unnecessary burden on the environment and contributes to global warming and climate change.
The water heater in the water tank is very inefficient. not only heat loss standby heat loss But it still can't heat water well thanks to its inherent design. When new it is about 55% effective depending on the hardness of the water. It can quickly drop to 30 percent or so as water sediment accumulates at the bottom of the tank. Like a kettle where water sludge builds up when the water in it is heated over and over again, the WH tank also has health issues. Bacteria and germs prefer warm standing water and grow easily and quickly in that environment.
The water is usually not hot enough to kill them. over time Rust may form in the water tank, reducing the heating efficiency of the WH. Sometimes you'll see rust in discolored tile grout. Not all of them are unhealthy. But there are times when this is undesirable. The WH tank pushes out some of these sediments. and some remain in the tank and keep forming. It's not just in the bathroom that we use hot water. Although it is mostly used for bathing. We sometimes use hot water to wash dishes and prepare food. Now, if you see all the foreign matter, bacteria and microscopic sediment You'll think about using it for food or even bathing the kids in the tub with that water again.
It happens to all of us that we run out of hot water, taking a shower or taking a shower. And without the rapid heating up of water, the WH wasn't designed for that. And it takes a lot of energy and time again to heat 40 gallons or more of water. The hot water will run out quickly. If you want the hot water to last longer You can turn on the WH at higher temperatures, say 180 degrees Fahrenheit. So that you mix more cold water with hot water, running WH at higher temperatures consumes more energy. And of course it costs money too.
Usually people take a shower in the morning before they leave the house for work. WH is unwise to know that after taking a shower. Everyone will leave the house and will not need hot water until late afternoon when everyone gets home again. Thus, it heats the water again and keeps it hot all day long by heating and heating again and again. And of course, you don't even know you don't need a hot shower after you shower and go to bed. So it heats up again and stays hot all night.
Leaking เครื่องทําน้ําอุ่น heaters can be expensive.
Another problem with WH tanks is that they tend to leak over time. Sometimes this happens for a long time without going unnoticed. Since most water heaters are placed in the garage, they tend to be invisible and unattended. Therefore, water damage due to water leaks can occur for a long time without going unnoticed. and cause considerable damage to the house and surrounding area. In addition to wasting water and energy Water damage to subfloors or other structures of the house is not uncommon. And repairs tend to be costly because they are undetected early.
