Tankless Water Heaters
Dramatically smaller than traditional water heaters, Small enough to mount on the wall. With a tankless water heater, the system only heats the water you need by either a gas burner or electric resistance heating coils when you need it. This method is much more efficient and can save lots of money on your electric or gas utility bills. Older conventional hot water tanks corrode over time and the water carried from the tank could have rust and residue mixed in it. With a tankless water heater, you get the same clear, clean water as you do when you turn on the cold faucet.
By virtue of their clever design, tankless water heaters operate up to around 30 percent more efficiently than their tank-style. However, tankless units cost, double or even triple that of traditional units.
Tankless water heaters cost more to install. When you’re installing a tank-style unit, you’re typically hooking it up to the home as is. But when you install a tankless unit, it must be modify. Whereas traditional water-heater installation costs around $500, tankless installation costs double, or more.
If the tank in a conventional water heater places a limit on output, then units without tanks promise limitless hot water. When demand increase, if you use the shower at the same time that the dishwasher’s running, the relatively low flow rate of a tankless water heater may not be able to keep the water as hot it was.