Not all Plumbing devices do; some have combined hot/cold taps. In either case, hot and cold water lines are separate, the hot water coming from a water heater. The simplest taps merely control each line, letting the user measure out how much of each they want.
No, cold water is piped into the hot water tank and is heated by electricity or gas, it then flows out to the hot water taps.
Usually there are no letters on French taps; some old taps bear the letters C (for chaud = hot) and F (froid = cold). Hot water taps are always located on the left side, cold water taps on the right. It is also standard to find color marks (blue for cold, red for hot) on the taps. On newer models, having a central lever instead of two taps, you turn the lever to the left for hot water and to the right for more cold water. Also the blue and red marks may be found on these type of taps.
Very easy once the supply lines to both the hot and cold water supply are shut and then work can proceed on changing out the "taps"
The cutoff valve from the hot water heater may have been closed.
No, cold water is not always on the right. The location of hot and cold water taps can vary depending on the plumbing system and design of the fixture.
if someone put in a hot water tank they may have the lines switched.
If possible, install hammer arrestors in hot and cold water mains.
Hot and cold water can separate due to differences in their temperature and density. When hot and cold water are combined, the hot water tends to rise to the top because it is less dense than the colder water below. This process is known as thermal stratification.
Mixer taps are extremely easy to use and one does not constantly have to try and get the perfect temperature and mixture of hot and cold water. Also one can make sure that hot water is not being overused.
It means hot water while the blue side means cold
By turning on the existing hot and cold water tap and running into a bucket, you will eventually get hot water out of one of them. The hot water is usually insulated. Cold water may also be insulated in the cold climate areas to prevent freezing. The taps are usually marked "H" or "C" or by color red and blue.
F, for frio (cold). Unfortunately, the hot water tap is marked C, for calor (hot), which could cause confusion. Fortunately, many taps use a color code as well : Red for hot water and Blue for cold water.