Skip to Content

What’s the Difference Between a Spa and a Hot Tub?

May 11, 2025 by
Lewis Calvert

People often use the terms "spa" and "hot tub" interchangeably, but there are apparent differences that distinguish the two. If you are considering adding a relaxing retreat to your backyard, understanding these differences can help you make an informed purchase decision. 

In this blog, we will break down the distinct features, benefits, and ideal uses of hot tubs and spas to help you choose the best option for your home. You can also explore top choices and expert recommendations through Backyard Canada.

Understanding what a hot tub is

Hot tubs are independent, self-contained systems specifically built to provide hydrotherapy and promote relaxation. They are typically installed outdoors and include built-in heating systems, filtration, and jets. These units do not require additional plumbing and can be placed above ground, making them convenient for homeowners seeking quick installation.

Hot tubs come in various sizes and seating capacities, ranging from two-person models to large units that accommodate up to eight people. Their design emphasizes portability, ease of maintenance, and affordability. Brands featured on Backyard Canada provide durable and energy-efficient models suitable for all climates across North America.

What defines a spa?

A spa, in residential settings, typically refers to an in-ground unit integrated into a swimming pool or built into the surrounding landscape. Spas normally require custom installation, often performed by contractors, and are connected to a larger water supply system. Unlike hot tubs, they rely on external equipment for heating, filtration, and jet functionality.

Spas offer a more luxurious and permanent solution for homeowners looking to enhance their property value or complement existing pool features. Because spas are built into the ground or attached to pools, they require more time and investment during the installation process.

Key differences between hot tubs and spas

1. Installation process

  • Hot tubs: Easy to install, often requiring a plug-and-play setup; no plumbing or major construction is needed.
  • Spas: Require professional installation, excavation, and integration with external systems.

2. Portability

  • Hot tubs: Portable and can be relocated or resold.
  • Spas: Fixed in place and permanent once installed.

3. Maintenance

  • Hot tubs: Come with built-in filters and pumps, making maintenance more straightforward.
  • Spas: Depend on external systems and usually share filtration with pool setups, which can be more complex to maintain.

4. Cost considerations

  • Hot tubs: Lower upfront costs and available in various models at Backyard Canada.
  • Spas: Higher initial investment due to construction and custom design.

Which one should you choose?

Your choice depends on space, budget, and purpose. If you want flexibility, lower maintenance, and fast setup, hot tubs are an ideal choice. For a permanent addition that enhances your home’s aesthetic and value, a spa might be the right investment.

Explore a wide range of affordable and premium hot tubs at Backyard Canada and discover expert tips on setup, usage, and maintenance.

While both spas and hot tubs provide relaxation and therapeutic benefits, they serve different needs. Hot tubs offer convenience and mobility, whereas spas give a custom, luxurious experience. Whether you're looking for a quick installation or a high-end design, visiting Backyard Canada will help you find the perfect option to suit your lifestyle.