You live in a mobile home, or older house? I live in a doublewide, and my dryer breakers are 30amp, and the water heater breakers are 20, both 220V lines, shared. The only safe way to answer this is to have an electrician look at your setup and determine if your wiring is capable for allowing a larger (bridge) to be installed. If they are tripping on a regular basis, it may be because you installed a new water heater that requires more current than what the breaker can handle, or a new dryer. The data labels that come with these units/appliances list the energy requirements needed to operate them. But an electrician will be able to tell you for sure.
15 amp breakers are usually feeding #14 wire. 20 amp breakers requires at least #12 wire.
This would typically be seen in older residential installations where the service was of such a high amperage that the mains required larger breakers than were available (for that panel). Placing two breakers in parallel allowing sharing of the load. Two breakers per (split) phase would total four breakers. Two breakers of 50 amp rating each (in parallel) provide (generally) 100 amps of protection. Two sets of two would provide mains protection for a 200 amp service.
Split ends can happen for a variety of reasons. Dying your hair often and using the high heat setting on you hair dryer contributes to split ends. Your hair can be damaged, either from the sun or natural processes which can cause split ends. Excessive washing with shampoos can strip your hair, which also cause split ends.
most dryer cords are flat and the connection on the dryer is split or the ground wire connection will be at a different height. The cord probably has black, red, and white wire. Black and red are hot and white is ground. It does not matter black and red or red and black, they are both hot. If the dryer is not marked it will be layed out so that the ground will be the center of the connection.
No, add new breaker,find a junction box and split the series, or add a box and split the load. You only need to do this if the breaker is tripping from overload. 12ga wire should have a 20amp breaker not a 15amp. If I understand your question,wired in parallel, this would be one hot connected to two breakers, first off two breakers is 220v not 120v , and 220v has two hot wires. Never connect two breakers together on one line.
Sizing what goes into a 200 amp panel whether it be split breakers or normal size breakers is based on the amperage values expected under normal use of the devices connected to the panel. For example if you could look at a continuous curve of usage you would see it vary throughout the day. This is because under normal living conditions you use you lights and appliances at different time. If you started to trip the main 200 amp breaker and the other breakers weren't tripping then you would need to increase your service from power company and add a new main panel. So giving you a count isn't possible. You could call in an electrician to measure your usage or just add the breakers you need and see if the main breaker trips.
After you remove the hoses from the core, remove the nuts and bolts that secure the heater case to the firewall in the engine bay. Inside the cab you will have to remove the glove box assembly for clearance. then disconnect the blower fan wiring. there may be another bolt securing the heater case to the firewall on the inside of the cab. Then you should be able to remove the heater case. You'll have to split the heater case to get to the core.
A traditional hair dryer evaporates water from your hair using a stream of heated air blown into the hair. The temperature and time of drying must be carefully controlled to avoid damaging the hair shafts. Newer hair dryer technology uses electrical charges (ions) to strip water molecules from your hair, which reportedly is faster and less likely to damage hair (split ends, frizzy, dull). Reportedly it removes moisture from the surface of the hair while leaving some moisture within the hair shaft for improved sheen. Some manufacturers claim that using crystals of the mineral tourmaline in the construction of the dryer produces a superior electrical charge, while using ceramic heater elements produces superior hot air, so the latest high-priced dryers boast "Ceramic Tourmaline Ionic" technology.