roughly 2 times bigger. costa rica: 51,000 square kilometers. kentucky: 104,000 square kilometers. roughly 2 times bigger. costa rica: 51,000 square kilometers.
Whole house water heaters are installed in a single location and supply the hot water for all fixtures and appliances in the home. Both tankless and tank-type water heaters can serve as whole-house systems, costing an average of $679 to install.
For the unit alone, an electric tankless water heater costs from $595 to $1,530 and a gas tankless water heater costs $1,005 to $1,770, according to Bluebook International. However, because of the prolonged and complicated installation process, expect to add several hundred to a couple thousand dollars more in installation costs.