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.
If you plan on investing in higher energy efficiency by installing an on-demand or tankless water heater, expect to pay more for its purchase and installation, water heater experts say. âFor an on-demand gas unit, the average price will be in the $3,200 to $4,500 range,â Hyde says.