PH101-15UP Inline Pressure Whirlpool Tub Heater Replacement | 120V 1500W

PH101-15UP Inline Pressure Whirlpool Tub Heater Replacement

Compatible 120V 1500W Standard 7" Heater

Restore comfortable bath water temperatures with this compatible replacement for the PH101-15UP inline pressure whirlpool tub heater. Manufactured by Balboa Water Group, this 120 Volt, 1500 Watt heater is designed for many whirlpool bathtub applications using a standard 7-inch inline pressure heater configuration.

Featuring a 1-1/2-inch stainless steel heater cylinder, integrated pressure switch, and standard 1-1/2" × 1" tail fittings, this heater is designed to provide dependable performance in compatible whirlpool bath systems.

Unlike heaters that rapidly heat cold water, this heater is designed to help maintain bath water temperature while the whirlpool system is operating.

Compatibility Notice: Manufacturer names and OEM part numbers are used solely to identify product compatibility. This product is a compatible replacement solution and is not manufactured, sponsored, or endorsed by the original equipment manufacturer unless expressly stated.

Why Choose This Heater?

• Compatible replacement for PH101-15UP applications
• Manufactured by Balboa Water Group
• Standard 7-inch heater body
• Integrated pressure switch
• 120 Volt operation
• 1500 Watt heating element
• 1-1/2-inch stainless steel heater cylinder
• Includes standard 1-1/2" × 1" tail fittings
• Designed for many whirlpool bathtub systems
• Expert support from Whirly Bros

Technical Specifications

Common Whirlpool Tub Applications

This compatible replacement heater is commonly found in select whirlpool bathtub systems manufactured by:

• Kohler
• American Standard
• Aquatic Industries
• Hydro Systems
• Jason International
• MAAX
• Aquaglass
• MTI
• Neptune
• Lasco

Compatibility varies by manufacturer, production year, and model. Always verify your existing heater specifications before ordering.

Common Replacement Part Numbers

Customers searching for any of these part numbers may have a compatible application:

• PH101-15UP
• PH10115UP
• 93212-21
• 93212+21

Our compatibility database continues to expand as additional verified OEM part numbers become available.

Pressure Heater vs. Vacuum Heater

A pressure heater uses an integrated pressure switch to verify that water is flowing before the heater is energized.

A vacuum heater performs a similar safety function using a vacuum switch.

Although they may appear similar, they are not always interchangeable. Always verify which type your whirlpool bathtub uses before ordering.

Before Ordering

Please verify your existing heater has:

• 115/120 Volt operation
• 1500 Watt rating
• Standard 7-inch heater body
• Inline configuration
• Pressure switch
• 1-1/2-inch stainless steel heater cylinder
• Standard 1-1/2" × 1" tail fittings

Common Signs Your Heater Has Failed

• Water no longer maintains temperature
• Heater will not energize
• Pressure switch failure
• Circuit breaker trips
• Heater housing leaks
• Burned electrical terminals
• Mineral buildup

Frequently Asked Questions

Is this an OEM heater?

No. This is a compatible replacement heater manufactured by Balboa Water Group for compatible whirlpool bathtub applications.

Does this replace every PH101-15UP?

Not necessarily. Always compare your existing heater specifications before ordering. If you need assistance, Whirly Bros can help identify the proper replacement.

Can this replace a discontinued heater?

Yes, when the specifications match your existing heater.

What does the pressure switch do?

The pressure switch prevents the heater from operating unless adequate water flow is present, helping protect the heater from damage.

Not Sure Which Heater You Need?

Whirlpool bathtub heaters are available in several different configurations. Although they may appear similar, tee-style, inline pressure, and inline vacuum heaters are not always interchangeable. Always verify your existing heater configuration before ordering.

Looking for a Tee-Style Heater?
If your whirlpool bathtub uses a tee-style heater, you may need our compatible replacement for the CT100-BLP-ET. Tee heaters install differently than inline heaters and should not be substituted unless the original system is designed for that configuration.

Looking for an Inline Vacuum Heater?
If your heater uses a vacuum switch rather than a pressure switch, you may need our compatible replacement for the CT101-D Inline Vacuum Heater. Vacuum heaters use a different activation method and should always be matched to your existing system.

Need Help Identifying Your Heater?

If you're unsure which heater your whirlpool bathtub uses, contact Whirly Bros before ordering. Simply send us:

• Photos of your existing heater
• The heater label
• Plumbing connections
• Wiring connections
• Whirlpool bathtub manufacturer (if known)

We'll help identify the correct compatible replacement before you purchase.

Why Buy From Whirly Bros?

Whirly Bros specializes in whirlpool bathtub replacement parts, helping customers identify compatible pumps, blowers, heaters, controls, and retrofit solutions. Our knowledgeable team is here to help you select the right replacement and keep your whirlpool bath operating at its best.

Trademark Disclaimer

All manufacturer names, trademarks, and OEM part numbers are used solely to identify product compatibility. Whirly Bros is an independent supplier and is not affiliated with or endorsed by the original equipment manufacturer unless expressly stated.