Buying tankless water heater...
OK. I have few questions about using tankless water heaters in home. I like the idea to heat water on demand and their small size.
But, are the tankless heaters more or less efficient than tank type water heaters? Does it cost less to heat water with the tankless technology and the last question is can any size of these on demand heaters provide hot water enough for the whole house, or they are just for the point of use service.