Buying a Hot Tub: Everything You Need to Know

The costs of a hot tub depend heavily on the chosen material, the heating method, the purpose of use (private or professional), the extra facilities, and the installation method. The overview below provides insight into which price levels are common in 2025 for different types of hot tubs and accessories.

1. Type Hottub & Base Price

2. Heating & Control

3. Optional Extensions

4. Installation & Connection costs

5. Total indication per type

6. Important considerations

• Maintenance costs: depending on filter system, frequency of use and water type.
• Power consumption: electrically heated hot tubs consume 3–6 kWh per hour when heating up.
• Wood consumption: for wood-fired models, an average of 0.5–1 cubic meters per month with regular use.
• Location accessibility: placement in backyards without free passage often requires a crane or disassembly.
• Permit: usually permit-free, unless permanently installed or combined with a canopy >3 meters high.

The price of a hot tub varies greatly and depends on a combination of technical choices, materials used, installation method, and extra features. The factors below provide a clear overview of the components that determine the final purchase and operating costs.

1. Type of hot tub

Effect:
The chosen type forms the basis for the rest of the price structure. Plastic tubs with extensive functionality are more expensive, but require less maintenance.

2. Heating system

Effect:
The choice of a heating method not only determines the initial price, but also the energy consumption and ease of use in the long term.

3. Size and capacity

• Larger hot tubs (> Ø 200 cm or > 6 persons) require:
• More material (tub, water content)
• Heavier stove
• More power/water consumption
• Larger installation space

Effect:
Every 20 cm extra diameter increases the price by an average of €500 – €1,000, excluding associated installation adjustments.

4. Material selection

Effect:
More expensive materials increase the purchase price, but reduce maintenance costs in the long term.

5. Extra features and accessories

Effect:
Optional upgrades can double the total price in luxury trim.

6. Installation and accessibility

Effect:
Hard-to-reach gardens, slopes or elevated terraces significantly increase the installation costs.

7. Finishing and Customization

• Built-in hot tubs, integrated LED edges, custom design enclosures or claddings are more expensive than standard setups.

Effect:
Custom solutions cost on average 20–40% more than standard prefabricated models.

8. Season, delivery time and market situation

• Supply and demand vary greatly per season.
• Promotional prices are often available in spring and autumn.
• Raw material prices and transport costs can vary quarterly.

Effect:
Timely ordering and delivery outside the peak season (spring/summer) can save up to 10–15% on material costs.

Summary Table – Key Price Factors

Advice:
Make a clear assessment in advance of comfort requirements, usage frequency and long-term costs. If possible, combine multiple extensions during the initial installation to limit additional assembly costs.

The cost of a hot tub is highly dependent on the chosen material, heating method, intended use (private or professional), additional features, and installation method. The overview below shows the common price levels for different types of hot tubs and accessories in 2025.

1. Hot Tub Type & Basic Price

2. Heating & Control

3. Optional
Extensions

4. Installation & Connection Costs

5. Total indication per type

6. Important considerations

• Maintenance costs: depending on the filter system, frequency of use, and water type.
• Power consumption: electrically heated hot tubs consume 3–6 kWh per hour for heating.
• Wood consumption: for wood-fired models, an average of 0.5–1 cubic meters per month with regular use.
• Site accessibility: placement in backyards without free passage often requires a crane or disassembly.
• Permit: usually permit-free, unless permanently built-in or combined with a canopy >3 meters high.

The choice of stove is crucial for the comfort, heating time, energy consumption, and user experience of the hottub. In 2025, four main types are in use: wood-burning stoves (internal or external), electric stoves, combi stoves, and heat pumps.

1. Wood-burning stove

Operation:

Heating by burning wood, with heat transfer via a stainless steel heat exchanger inside or outside the tub.

Variants:

• Internal heater: Integrated into the tub, visible in the tub area
• External heater: Placed outside the tub, connected via pipes

Features:

Advantages:

• Independent of power supply
• Low operating costs (wood)
• Atmospheric experience and high heat output
• Fast heating with well-insulated tub

Disadvantages:

• Manual firing required
• Ash residue and soot deposits must be removed periodically
• Wood supply and dry storage needed
• Less suitable for daily short use

Price indication (excl. VAT):

• Internal stove: €500 – €1,200
• External stainless steel stove: €900 – €2,500
• Includes flue and heat shields

2. Electric heater

Operation:

Heating by electric resistance elements, controlled via thermostat or home automation system.

Features:

• Power: typically 3 – 6 kW
• Power supply: 230V (light models) or 400V three-phase power (for rapid heating)
• Programmable and controllable via display or app

Advantages:

• Fully automatic: switch on and forget
• Temperature precisely adjustable
• Combinable with home automation, timers, and solar panels
• Low maintenance

Disadvantages:

• Relatively high power consumption during warm-up
• Warm-up time: 6 to 12 hours for standard 3 kW model
• Requires a good electrical connection and separate circuit

Price indication (excl. VAT):

• Electric heater 3–6 kW: €1,200 – €2,500
• Installation costs (connection + circuit): €500 – €1,200

3. Combi heater (wood + electric)

Operation:

Combined unit that can be heated with both wood and electricity, depending on availability, time, or preference.

Advantages:

• Maximum flexibility
• Wood-fired for speed and atmosphere
• Electric for convenience and night heating
• Ideal for use in all seasons and situations

Disadvantages:

• Higher purchase price
• More complex installation
• Requires both flue gas discharge and power connection

Price indication (excl. VAT):

• Combi boiler: €2,000 – €3,500
• Connection costs for both systems: €1,000 – €2,000

4. Heat pump

How it works:

Heats the water via air heat using a compressor. Very energy efficient (COP > 4).

Advantages:

• Up to 70% more economical than electric heating
• Easily combined with solar energy
• Advantageous for long-term or daily use
• Constant temperature possible when stationary

Disadvantages:

• High initial costs
• Longer heating time than wood-fired
• Less suitable for occasional or quick use
• Requires outdoor installation and free air circulation

Price indication (excl. VAT):

• Heat pump (3–6 kW): €2,500 – €5,000
• Connection and integration costs: €1,000 – €2,000

Comparison Table – Heater Types

Points to consider when choosing

• Location: Is three-phase power available or possible? Is a chimney allowed?
• Frequency of use: Daily, weekly, or occasionally?
• Speed vs. convenience: Should the hot tub always be ready quickly, or is it okay if it takes a bit longer?
• Willingness to maintain: Are you prepared to burn wood, or would you prefer fully automated?

The right size of a hot tub depends on the number of users, the desired comfort level, the type of heating, the heating time, the available space in the garden or on the terrace, and the intended use (individual, family, professional). In 2025, various standard sizes will be available, as well as custom solutions.

1. Standard Dimensions and Capacity

Rectangular or oval models

For modern or built-in applications, there are also rectangular hot tubs, often with dimensions of:

• 200 x 200 cm (4–6 persons)
• 220 x 220 cm (6–8 persons)
• 250 x 250 cm or larger (8+ persons)

2. Required Placement Space

In addition to the tub size, consider the following:

Example total space for hot tub Ø 200 cm with steps and technology: approx. 3 x 3 meters

3. Influence on use and heating

Warm-up time depends on insulation, environmental temperature and heater type.

4. Advice per use case

5. Summary – Size & Planning

• Small hot tubs (Ø ≤ 180 cm)
  Affordable, heats up quickly, limited comfort for multiple people
• Medium hot tubs (Ø 180–200 cm)
  Most popular choice for domestic use (balance between comfort and cost)
• Large hot tubs (Ø 220+ cm)
  Luxurious, suitable for groups, higher installation and running costs
• Total space required (freestanding model):
  Average of 6 to 9 m² including walking space, steps, and technical equipment

In addition to the basic version of a hot tub, there will be various optional extensions available in 2025 to further enhance the comfort, functionality, and appearance of the installation. These extras make it possible to fully tailor the hot tub to individual wishes, usage intensity, and garden architecture.

1. Massage and bubble jets

• Hydrotherapy jets (water massage): targeted water pressure on back, legs or shoulders
• Air jets (air bubbles): relaxing bubbles from the bottom or sides
• Multiple modes and zones possible, often adjustable per user

Additional cost (excl. VAT): €1,000 – €2,500

2. LED lighting (interior and exterior)

• Internal spots or RGB colors for atmospheric sessions
• Waterproof strips under the tub edges or around the exterior cladding
• Programmable, dimmable and possibly linked to home automation

Additional cost: €300 – €800

3. Insulating Cover

• Custom-made thermal cover
• Reduces heat loss and dirt ingress
• Available in foam rubber, vinyl or plastic with stainless steel frame
• Optional with handles, locks or automatic opener

Additional cost: €400 – €1,000

4. Water purification system

• Filter system (sand, cartridge or pressure filter)
• Ozonator or UV lamp for killing bacteria and algae
• Automatic dosing systems for pH and chlorine control

Additional cost: €800 – €2,000

5. Home automation and digital control

• App control via smartphone or tablet
• Setting temperature, jets, lighting and timers
• Combinable with home automation systems such as KNX or Home Assistant

Additional cost: €750 – €2,000

6. Steps and stairs

• Thermo-wood or composite steps for comfortable entry
• Custom-made in the same finish as the tub
• Available with anti-slip, storage space or integrated lighting

Additional cost: €250 – €1,000

7. Border and cladding

• Design border in thermo wood, hardwood or WPC
• Adaptable to existing decks or terraces
• Optional with integrated planters or benches

Additional cost: €600 – €1,500

8. In-ground and terrace integration

• Full or partial in-ground installation in wooden decking or raised terrace
• Provides a sleek look and saves space
• Often combined with hidden pipes and power supply

Additional cost (excl. structural modification): €1,000 – €3,000

9. Outdoor shower and plunge pool

• Outdoor shower for pre- and post-treatment (cold or warm/cold)
• Plunge pool as cold cooling after a warm session
• Available in wood, stainless steel or plastic

Additional cost:

• Outdoor shower: €500 – €1,500
• Plunge pool: €700 – €2,000

10. Heating Upgrade

• Heat pump instead of electric heating for lower consumption
• Combi stove (wood + electric) for flexibility
• Solar panel connection (indirectly via heat pump or 230V)

Additional cost: €2,000 – €5,000

Summary Table – Extra Options

Advice:
Determine in advance which extensions are functionally necessary and which are optional. Combine multiple options during placement to avoid duplicate installation work and costs.

A hot tub is an attractive investment in comfort and relaxation. However, the costs – both in purchase and in use – can quickly add up. By making smart choices in design, installation and consumption, you can save significantly without compromising on quality.

1. Choose the right size

• Determine the actual intended use in advance
  For 2–4 people, a compact tub (ø 180–200 cm) is sufficient, which uses less water and energy than an XL model.
• Limit unused seating
  Every extra tub capacity increases heating time, water costs, and maintenance.

2. Consider a wood-fired model

• No electricity consumption needed for wood heating
  Ideal for recreational or occasional use, especially in rural areas.
• Lower purchase price than electrically heated models
  And lower technical installation costs.
• Self-sufficient with your own firewood
  Can save hundreds of euros per year.

3. Choose a plastic inner tub

• Low maintenance and water-saving
  Smooth tubs are easier to keep clean, meaning water needs to be changed less often.
• Faster heating
  Plastic conducts heat better than solid wood, making it more efficient for electric or wood-fired use.

4. Use a good insulating cover

• An insulating cover saves 30–50% on energy consumption
  Heat loss through the top is the biggest cost factor for electrically heated hot tubs.
• Opt for a thick, custom-made cover with a foam core
  Investment costs (€400–€800) will quickly pay for themselves.

5. Avoid unnecessary luxury options

• Limit accessories to what you really use
  Think of jets, LED lighting, home automation, and audio systems – attractive, but often expensive to purchase and in terms of power consumption.
• Opt for manual control instead of app systems for occasional use

6. Use off-peak hours for electric heating

• Set timers to heat the hot tub at night or outside peak hours
  This is extra beneficial with dynamic energy rates or solar panels.
• Connect the hot tub to your own PV system
  This allows you to generate up to 100% of your electricity consumption yourself.

7. Perform self-assembly or preparatory work

• Save on installation time by preparing the foundation or connection yourself
  Consider a level surface, electrical wiring, water connection, or tiling.
• Placement in an easily accessible garden
  Avoid crane costs (€500–€1,200) by ensuring free access to the location.

8. Choose a standard model or a showroom model

• Manufacturers regularly offer discounts on showroom models or end-of-line stock
  Up to 10–25% cheaper than custom-made models with the same technical specifications.
• Consider prefabricated or demountable models
  Less assembly time and lower logistical costs.

9. Limit water replacement and chemical consumption

• Use a filter system and ozone/UV purification
  Less water consumption and lower costs for maintenance products.
• Opt for a closed system with good cover
  Less evaporation = less refilling.

10. Consider long-term maintenance

• Good maintenance extends the lifespan by years
  Clean the tub, regularly check the heater and closures.
• Avoid expensive repairs through preventive care
  For example, timely replacement of seals and pump filters.

Summary Savings Table

In 2025, a hot tub will no longer be a luxury product, but an accessible investment in well-being, relaxation, and quality of life. Due to the wide range of models, materials, heating options, and designs, there is a suitable solution for almost every situation and budget – from a compact wood-fired tub to a fully equipped electrically heated wellness installation with home automation.

Important choices such as the type of stove, the material used, the desired accessories, and the placement determine not only the comfort and user experience, but also the total purchase and operating costs. Those who consciously consider in advance the intended use, which facilities are already available (such as electricity or space for wood storage), and which comfort requirements are truly necessary, can invest efficiently without unnecessary costs.

In addition, there are numerous ways to save structurally – for example, by using a well-insulating cover, a smart heating strategy, or by choosing low-maintenance materials. A hot tub can also be excellently combined with other wellness facilities such as an outdoor shower, sauna, or canopy, creating a complete relaxation zone in your own garden.

Finally, a high-quality hot tub not only contributes to personal relaxation but also to the added value of the home, the attractiveness of a holiday home, or the comfort level of a guest accommodation. With the right preparation, professional advice, and a technically well-executed installation, a hot tub provides years of enjoyment with minimal maintenance.

Curious about the best solution for your situation?
We are happy to help with tailored advice, a design proposal, or a complete quote, adapted to your wishes and budget.