Whirlpool Tub Heaters & Bathtub Heater Replacements

Keep your whirlpool or jetted bathtub water warm and comfortable with premium Whirlpool Tub Heaters, Bathtub Heaters, and Jetted Tub Heater replacements from Whirly Bros.

With decades of hands-on experience in the whirlpool bath industry, we don't just sell heaters—we know exactly which replacement heater fits older Whirlpool tubs, Jacuzzi® whirlpool tubs, and many other discontinued hydrotherapy systems. If your original heater has failed or is no longer available, we'll help you find the correct replacement to get your bathtub working again.

Our selection includes high-quality inline heaters designed to maintain water temperature while your whirlpool system is operating, providing longer, more relaxing hydrotherapy sessions without constantly adding hot water.

Why Buy Your Whirlpool Tub Heater from Whirly Bros?

• Expert guidance for replacing obsolete whirlpool tub heaters
• Direct replacements and retrofit solutions for many older Whirlpool and Jacuzzi® bathtub systems
• Compatible with many leading whirlpool bathtub brands
• Fast, same-day shipping on most in-stock orders
• Trusted by homeowners, plumbers, contractors, and service technicians nationwide

Whether you're replacing a failed heater, upgrading an older bathtub, or searching for a hard-to-find part, Whirly Bros is the trusted source for Whirlpool Tub Heaters, Bathtub Heater replacements, and Whirlpool Tub Parts.

Not sure which heater you need? Contact our experts—we'll help you identify the correct replacement the first time.

Can you replace a discontinued whirlpool tub heater?
Yes. Many discontinued whirlpool tub heaters can be replaced with modern inline heater systems that match the original voltage, plumbing size, and flow requirements.

How do I know which whirlpool tub heater I need?
The correct replacement depends on the tub's voltage, plumbing configuration, heater style, flow direction, and control system. Photos of the existing heater and pump are often enough for Whirly Bros to identify a compatible replacement.

Does a whirlpool tub heater heat cold water?
No. A whirlpool tub heater is designed to maintain the water temperature while the circulation pump is operating. It is not intended to quickly heat a tub filled with cold water.

Can I replace just the heater instead of the entire bathtub?
In most cases, yes. Replacing a failed inline heater is far less expensive than replacing the entire whirlpool tub and can restore normal operation.