A: Tankless water heater installation in Safety Harbor runs $3,158 to $4,371 for Rheem (Premium) gas or $3,935 to $5,010 for Navien (Elite) gas, and $1,369 to $2,260 for Rheem electric or $2,107 to $3,075 for Stiebel Eltron (Elite) electric; modifications are quoted in writing. Converting from a tank to tankless may require new gas lines, venting, or electrical work. Older and newer homes from the pre-war years to the 2000s sometimes need minor plumbing upgrades. We provide free estimates and offer financing to make the upgrade affordable for Safety Harbor homeowners.