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 5.5kW Curved Flo Thru Heater [15" x 2"] [240V] [Sundance] (C2550-0119)](http://www.bathandspaparts.com/cdn/shop/products/C2550-0119_large.jpg?v=1486197450)
![Therm 4.5kW Flo Thru Heater [2" x 17.63"] [240V] [DM Industries] (C2450-1008ET)](http://www.bathandspaparts.com/cdn/shop/products/46-238-1600_xl_large.jpg?v=1522958560)
![Therm 4.0kW Heater [240V] [Caldera Highland Series Heater] (C2400-C3330-1A)](http://www.bathandspaparts.com/cdn/shop/products/46-238-1072_xl_large.jpg?v=1773168905)
![Therm 4.0kW Flo Thru Heater [3" x 13.5"] [240V] [3/4" x 90 Tail] [Saratoga Spas] (E2400-0420ET)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1217_xl_large.jpg?v=1486197325)
![Hydro-Quip 5.5kW PS Air Heater [2"x 15"] [240V] [L-Shape] [Short Cord] [Clamps] (48-PS55-SA)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1441_xl_large.jpg?v=1486187445)
![Hydro-Quip 1.5kW In-Line Bath Heater [PH101-15UV] [115V] [3ft Cord/Plug] [Vacuum] (PH101-15UV)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1054_XL_large.jpg?v=1486187339)
![Hydro-Quip 1.5kW In-Line Pressure Bath Heater [PH101-15UP] [115V] (PH101-15UP)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1048_XL_large.jpg?v=1486187337)
![Gecko heat.wav 4.0kW Spa Heater [230v] [15" x 2"] [IN.XE Control Systems] (9920-101435)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_1236_large.jpg?v=1778992499)
![Hydro-Quip Artic Spas 4.0kW FloThru Heater [12" x 2"] w/Cord (48-9150-5P-K)](http://www.bathandspaparts.com/cdn/shop/files/46-355-3036_XL_large.jpg?v=1715657681)
![Balboa Complete Clim8Zone 2" Heat/Cool Pump [230v] (73000)](http://www.bathandspaparts.com/cdn/shop/files/46-138-1110_XL_large.jpg?v=1713397751)
Balboa Complete Clim8Zone 2" Heat/Cool Pump [240v] (73000)
$2,585.72 $2,358.84
![Balboa 15" BP100 FloThru Heater Assembly [4.0kw] (G4310) (G7411)](http://www.bathandspaparts.com/cdn/shop/files/46-138-1302_XL_large.jpg?v=1713397737)
Balboa BP100 4.0kW [15" x 2"] FloThru Spa Heater (G7411)
$252.91 $193.56
![Balboa 5.5kW Slave Heater System [15" x 2"] (55986)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0769_large.jpg?v=1778992279)
Balboa 5.5kW Slave Heater System [15" x 2"] (55986)
$397.03 $375.81
![Hydro Quip 5.5kW Flo Thru Heater [12" x 2"] [230V] [No Plug] (C2550-0103TT) [48-9120-7P-K]](http://www.bathandspaparts.com/cdn/shop/products/48-9120-7P-K_large.jpeg?v=1559833289)
![Laing 6.0kW Flo Thru Heater Assembly [240V] [Laing Tri-Bend] (C3564-1)](http://www.bathandspaparts.com/cdn/shop/products/46-555-1012_xl_large.jpg?v=1486197678)
![Therm 5.5kW Titanium Flo Thru Heater [15" x 2"] [230V] [48" Cord] (C2550-0316TI)](http://www.bathandspaparts.com/cdn/shop/products/C2550-0316TI_large.jpg?v=1486197665)
![Therm 5.5kW Low Flow Heater [3" x 6.469"] [240V] [Sunbelt Spas] (26-08147)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1315_xl_large.jpg?v=1486197617)
![Therm 5.5kW Flo Thru Heater [2" x 18"] [240V] [Hercules] [Pre-5/95 XT] [Welded] (C2550-0155)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1220_xl_large.jpg?v=1560265135)
![Therm 5.5kW Flo Thru Heater [2" x 13.25"] [240V] [United] [Generic] (C2550-1206)](http://www.bathandspaparts.com/cdn/shop/products/B24055D_large.jpeg?v=1561477217)
![Therm 4.0kW Low Flow Heater [3" x 6.469"] [240V] [Gatsby/Blue Ridge] (E2400-0300ET)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1296_xl_large.jpg?v=1486197386)
![Therm 4.0kW Low Flow Heater [230V] [w/Tap] [DM/Vita] [Generic] (E2400-0127ETX)](http://www.bathandspaparts.com/cdn/shop/products/E2400-0127ETX_large.jpg?v=1486197357)
![Therm 4.0kW Low Flow Heater [13-1/2" x 2"] [240V] [90 Deg Tailpiece] [Saratoga] (C2400-C3037-2)](http://www.bathandspaparts.com/cdn/shop/products/C2400-C3037-2_large.jpg?v=1486197355)
![Therm 4.0kW Flo Thru Heater [15" x 2"] [240V] [Cal Spas] [w/Box] (C2400-0011)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2002_xl_large.jpg?v=1486197301)
![Therm 11.0kW Flow Thru Heater [3"x 15"] [240V] [Pinnacle] (E21100-3100)](http://www.bathandspaparts.com/cdn/shop/products/46-238-1108_xl_large.jpg?v=1486197246)
![Spa Components 5.5kW Flo Thru Heater [15" x 2"] [Brett Aqualine EM100/EM190] (B24055E)](http://www.bathandspaparts.com/cdn/shop/products/B24055E_large.jpg?v=1486196400)
![Hydro-Quip 5.5kW Universal Flo Thru Heater [15" x 2"] [230V] [w/Union] (48-1555-HS)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2210_XL_large.jpg?v=1486187449)
![Hydro-Quip 5.5kW M7 Flo Thru Heater [PS-B Series] [15" x 2"] [230V] [24" Cord] (48-PS55-SB)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1300_XL_large.jpg?v=1486187437)
![Hydro-Quip 4.0kW Universal Flo-Thru Heater [15" x 2"] [240V] [w/2" Slip Unions] (48-1540-HS)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2206_xl_large.jpg?v=1486187392)
![Coates 1.5ILS 1.5kW Heater [15" x 2"] [115v] [w/Sensors] [PS] (1.5ILS)](http://www.bathandspaparts.com/cdn/shop/products/462251012_xl_large.jpg?v=1486184267)
Coates 1.5ILS 1.5kW Heater [15" x 2"] [115v] [w/Sensors] [PS] (1.5ILS)
$1,049.82 $806.79
![Balboa Generic 4.0 kW [15" x 2"] FloThru Spa Heater (B24040N)](http://www.bathandspaparts.com/cdn/shop/files/46-510-3102_1_large.jpg?v=1786402387)
![Balboa 15" 4.0 kW Spa Heater Assembly [240V] [LE Systems] (58048) (G7418)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_1132_large.jpg?v=1778992447)
![Balboa 15" 4.0 kW Spa Heater Assembly [2" x 2"] [825Inc] (58056) (G7415)](http://www.bathandspaparts.com/cdn/shop/products/58109_34926f68-73ca-41c0-803e-9b6bbd010574_large.jpg?v=1590510663)