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.
A central tankless water heater providing hot water for an entire house can cost $800-$3,000 or more (without installation), depending on gallons per minute capacity and the unit's energy-efficiency rating.