Tankless water heaters are quickly becoming the way of the future. Imagine your three kids taking a shower one after the other then your husband or wife, do you still have hot water? Well now you can have endless hot water when you need it! Your conventional water heater consistently heats the water in your heater, using gas to keep about 50 gallons hot. Instead with a tankless water heater you can have endless hot water when you need it.In Europe and other countries where space and efficiency are a big factor, tankless has been around for years. With a tankless water heater in your home, you'll save on your water and gas bills.