Tankless water heaters are more expensive to purchase and install than tank type water heaters, but they have a number of benefits that may make them worth the investment.
As mentioned earlier, tankless water heaters are more energy efficient and have a longer lifespan than tank type water heaters. They also have a much smaller footprint, as they don't require a storage tank. This makes them a great option for small homes or for those who want to free up space in their utility room.
Tankless water heaters do have some limitations, however. They may not be able to keep up with the hot water demand of larger households or those with multiple bathrooms. They also have a higher initial cost, which can be a deterrent for some homeowners.
Electric whole house water heaters are relatively new to the housing market. They have been used for several years as a Point of Use type installation. A whole house system generally requires a high Amperage circuit to heat the water which can also mean adding an upgraded electric service to the home. These are becoming more common now in new construction and we expect to see them more in the future.