Balboa 58129 Spa Heater — 15" 1.5 kW Replacement for Balboa Systems

Meet the Balboa 58129 spa heater, a trusted replacement from Balboa Water Group designed to deliver reliable warmth for your spa or hot tub. This 15-inch, 1.5 kW heater is engineered for consistent performance and straightforward installation, making it a favorite among service pros and homeowners alike.

Why this Balboa heater stands out

• Revolutionary Balboa heater technology delivers consistent heat output and dependable operation across a wide range of spa conditions.
• Easy installation design reduces downtime and simplifies replacement, even for DIY enthusiasts.
• Broad compatibility with Balboa control systems listed in our catalog, including legacy pressure-switch setups and the modern M7 technology.
• Trusted brand lineage from Balboa Water Group, a leader in spa heating design and reliability for nearly three decades.
• Extensive selection—we stock the largest collection of spa heaters in the industry, so you can find the exact match for your spa model.

What problems does this solve?

The 58129 replaces worn-out or failed heaters with a part specifically designed for Balboa systems, reducing compatibility headaches and ensuring a steady, comfortable water temperature. It’s built to resist common wear and keep your spa heating reliably over time, so you spend less time waiting for warm water and more time enjoying your spa experience.

Who should consider this replacement?

Ideal for homeowners refreshing an older Balboa spa, technicians performing spa renovations, and anyone upgrading a Balboa heater who wants a dependable, easy-to-install solution that aligns with Balboa’s ongoing heritage of innovation.

Practical tips and usage

• If you’re unsure which heater model your spa uses, rely on our Heater Locator on the site to confirm compatibility with your Balboa system.
• Choose the 1.5 kW rating for typical spa sizes and climate conditions where steady, comfortable heating is the goal.
• Pair this heater with Balboa’s control system options for seamless integration and reliable performance.

Balboa 58129 is more than a replacement part—it’s a piece of a trusted ecosystem. By choosing a Balboa heater, you’re connecting with a brand that has steered spa heating innovation for over 30 years, backed by a comprehensive parts catalog and a proven track record for reliability.

Balboa Water Group Spa Replacement Heater

The 58129 spa replacement heater is specially designed by Balboa Water Group and is one of the most popular models of replacement heaters. It uses Balboa's revolutionary heater technology to deliver consistent results. This is a 1.5 kW heater that is compatible with the Balboa systems listed in our product listing. If you have difficulty locating your heater, we suggest that you use our Heater Locator here on our website.

Balboa Spa Replacement Heaters have a revolutionary design that provides additional reliability and ease of installation when compared to conventional spa systems. Through the years, Balboa Water Group (BWG) continues to be leader in the spa heater industry in terms of design, innovation, and reliability. These are highly sought after qualities when choosing the right product for your spa and for your family. We also carry the largest selection of spa heaters in the industry. Whether you are replacing your spa heater on an older spa system with pressure switch technology or whether you are replacing a spa heater with Balboa's modern M7 patented technology, we have the right solution for you. That is what makes us the leader in the spa industry for more than 30 years!

WHY USE BALBOA WATER GROUP PRODUCTS?
At Balboa Water Group (formerly Balboa Instruments), their fundamental commitment to the leisure water industry has been to provide a simple, comprehensive, one source solution to their products that include the highest quality in pumps, blowers, electronic control systems, jets, white goods and accessories. Their outlook has earned them the position as the leading global supplier of product design, state-of-the-art manufacturing, and an unsurpassed reputation for reliability. With nearly three decades of innovative design, expansion and development, BWG offers a complete line of products for your whirlpool bath or hot tub.

WHY USE BALBOA WATER GROUP PRODUCTS?
At Balboa Water Group (formerly Balboa Instruments), their fundamental commitment to the leisure water industry has been to provide a simple, comprehensive, one source solution to their products that include the highest quality in pumps, blowers, electronic control systems, jets, white goods and accessories. Their outlook has earned them the position as the leading global supplier of product design, state-of-the-art manufacturing, and an unsurpassed reputation for reliability. With nearly three decades of innovative design, expansion and development, BWG offers a complete line of products for your whirlpool bath or hot tub.