Intro

Choosing between a small hot tub and a full size model is one of the most important decisions when buying a hot tub.

While both options offer relaxation and comfort, they suit very different needs. The right choice depends on your available space, how you plan to use the hot tub and what level of comfort and performance you expect.

Understanding the key differences will help you avoid buying a model that does not fit your lifestyle or long-term expectations.

What Is Considered a Small Hot Tub

Small hot tubs typically include:

• 2 person hot tubs
• 3 person hot tubs
• compact models designed for smaller spaces

They are built to fit into patios, smaller gardens or more limited outdoor areas, while still providing a comfortable and relaxing experience. View a Compact Hot Tub here.

What Is a Full Size Hot Tub

Full size hot tubs usually include:

• 5 person hot tubs
• 6 person hot tubs
• larger family or entertainment models

These are designed to provide more seating, more space and often additional features, making them suitable for families or social use. View an example of a Family Hot Tub. 

 

Space and Installation

One of the biggest differences between small and full size hot tubs is the space required.

Small hot tubs:

• fit easily into patios or compact gardens
• require less preparation
• are easier to position

Full size hot tubs:

• need more space
• may require additional groundwork
• often need more planning before installation

If space is limited, a smaller model is usually the more practical choice.

Cost Differences

The cost difference between small and full size hot tubs is not just the purchase price.

Small hot tubs generally:

• cost less upfront
• have lower installation costs
• use less energy

Full size hot tubs:

• cost more to purchase
• may have higher installation costs
• offer more features and capacity

However, price should not be the only deciding factor, as long-term value is just as important.

Running Costs and Energy Use

Running cost is a key consideration for most buyers in the UK.

Small hot tubs typically:

• heat up faster
• use less water
• require less energy

Full size hot tubs:

• use more energy due to larger volume
• take longer to heat
• may cost more to maintain

However, build quality plays a major role.

A well-insulated larger hot tub can sometimes be more efficient than a poorly built smaller one.

FACT CHECK NOTE FOR OWNER:
Expect running costs for a HotSpring Hot Tubs to range from £30 to £60 per month depending on time of year (temperature), model, size and usage.

Comfort and Experience

Comfort is where full size hot tubs often have an advantage.

They provide:

• more seating options
• more space to move
• different seating positions

However, smaller hot tubs can still deliver a high level of comfort if they are well designed.

A high-quality 2 or 3 person hot tub can often feel more comfortable than a larger, lower-quality model.

How You Plan to Use Your Hot Tub

Your intended use should guide your decision.

Choose a small hot tub if you:

• mainly use it as a couple
• want something for regular personal use
• have limited space

Choose a full size hot tub if you:

• need flexibility for multiple users
• entertain regularly
• want more seating

Small Does Not Mean Basic

One common misconception is that smaller hot tubs are always lower quality.

In reality, many premium brands offer compact models that still include:

• high-quality materials
• efficient insulation
• well-designed seating
• reliable performance

This makes them a strong option for buyers who want quality without needing a large model.

Common Mistakes to Avoid

When choosing between small hot tubs and full size hot tubs, avoid:

• choosing a model that is too large for your space
• focusing only on price rather than long-term value
• ignoring running costs
• assuming bigger is always better

Taking time to match the hot tub to your needs will lead to a better experience over time.

Which Option Is Right for You

A small hot tub is usually the best choice if you want:

• a compact, practical solution
• lower running costs
• simple installation

A full size hot tub is better if you want:

• a wider range of features
• more space and flexibility
• a social or family setup