Heaters
Shop replacement heaters for pools, spas, hot tubs, and bath systems. Find gas, electric, and spa heater options designed to maintain comfortable water temperatures and dependable heating performance.
![Therm [Caldera Spas] 15" 4.0kW Flo-Thru Incoloy Heater (26-3330-5S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-3330-5S-K_large.jpg?v=1784792090)
![Therm [Coates] 15" 5.5kW Flo-Thru Incoloy Heater (26-0517-MP-K)](http://www.bathandspaparts.com/cdn/shop/files/26-0517-MP-K_large.jpg?v=1784792092)
Therm [Coates] 15" 5.5kW Flo-Thru Incoloy Heater (26-0517-MP-K)
$185.99 $168.99
![Therm [Cal Spas] 16.25" 4.0kW Flo-Thru Incoloy Heater (26-0165-5S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-0165-5S-K_large.jpg?v=1784792087)
![Therm [Cal Spas] 16.25" 5.5kW Flo-Thru Incoloy Heater (26-0165-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-0165-7S-K_large.jpg?v=1784792089)
![Therm [Cal Spas] 15" 5.5kW Flo-Thru Incoloy Insulated Heater (26-2001-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-2001-7S-K_large.jpg?v=1784792084)
![Therm [Arctic Spas] 15" 7.2kW Flo-Thru Titanium Heater (48-9130-CP-K)](http://www.bathandspaparts.com/cdn/shop/files/48-9130-CP-K_large.jpg?v=1784792080)
![Therm [Artesian Spas] 5.5kW Flo-Thru Titanium Heater (OP24-0216-08)](http://www.bathandspaparts.com/cdn/shop/files/OP24-0216-08_large.jpg?v=1784792080)
![Therm [Cal Spas] 15.75" 5.5kW Flo-Thru Incoloy Heater (26-H0021-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-H0021-7S-K_large.jpg?v=1784792085)
![Therm [Cal Spas] 16.25" 2.5kW Flo-Thru Incoloy Heater (26-0165-3S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-0165-3S-K_large.jpg?v=1784792085)
![Therm [Apollo Spas] 15" 4.5kW Flo-Thru Incoloy Heater (26-H0136-6S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-H0136-6S-K_large.jpg?v=1784792075)
![Therm [Arctic Spas] 15" 4.0kW Flo-Thru Titanium Heater (48-9125-5T-K)](http://www.bathandspaparts.com/cdn/shop/files/48-9125-5T-K_large.jpg?v=1784792079)
![Therm [Cal Spas] 15" 2.5kW Flo-Thru Incoloy Insulated Heater (26-2001-3S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-2001-3S-K_large.jpg?v=1784792082)
![Therm [Arctic Spas] 12.7" 3.6kW L-Shape Flo-Thru Titanium Heater (48-9122-AT-K)](http://www.bathandspaparts.com/cdn/shop/files/48-9122-AT-K_large.jpg?v=1784792077)
![Therm [Advance LA Spa] 15" 5.5kW Flo-Thru Incoloy Heater (26-0736-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-0736-7S-K_large.jpg?v=1784792074)
![Therm [ACC Brett Aqualine] 15" 4.0kW Flo-Thru Incoloy Heater (26-0314-5S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-0314-5S-K_large.jpg?v=1784792069)
![Therm [ACC] 16" 7.2kW Flo-Thru Titanium Dual Element Heater (26-H3117-CT-K)](http://www.bathandspaparts.com/cdn/shop/files/26-H3117-CT-K_large.jpg?v=1784792072)
![Therm [ACC Brett Aqualine] 15" 5.5kW Flo-Thru Incoloy Heater (26-0314-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-0314-7S-K_large.jpg?v=1784792070)
![Therm [ACC] 16" 11kW Flo-Thru Titanium Dual Element Heater (26-H3117-JT-K)](http://www.bathandspaparts.com/cdn/shop/files/26-H3117-JT-K_large.jpg?v=1784792070)
![Therm [Arctic Spas] 12" 3.6kW Flo-Thru Titanium Heater (48-9151-AP-K)](http://www.bathandspaparts.com/cdn/shop/files/48-9151-AP-K_large.jpg?v=1784792075)
![Therm [ACC] 15" 5.5kW Flo-Thru Incoloy Heater (26-1054-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-1054-7S-K_large.jpg?v=1784792065)
Therm [ACC] 15" 5.5kW Flo-Thru Incoloy Heater (26-1054-7S-K)
$185.99 $168.99
![Therm [ACC] 12" 5.5kW Flo-Thru Titanium Heater (26-1004-7T-K)](http://www.bathandspaparts.com/cdn/shop/files/26-1004-7T-K_large.jpg?v=1784792067)
Therm [ACC] 12" 5.5kW Flo-Thru Titanium Heater (26-1004-7T-K)
$185.99 $168.99
![Therm [ACC] 12" 5.5kW Flo-Thru Incoloy Heater (26-1004-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/26-1004-7S-K_large.jpg?v=1784792063)
Therm [ACC] 12" 5.5kW Flo-Thru Incoloy Heater (26-1004-7S-K)
$185.99 $168.99
