Hot tub
The internationally preferred English term for a self-contained heated bath with hydrotherapy jets, designed for multiple people. Used across the industry globally and increasingly common in German usage.
Buyer's guide · Hot Tub kaufen
Hot Tub kaufen — Premium Outdoor Hot Tubs from Wellis
Buying a hot tub means investing in year-round wellness at home. At TwoRelax we sell premium outdoor hot tubs from Wellis — the leading European manufacturer, producing in Hungary since 2003. Whether you say "hot tub", "whirlpool" or "outdoor spa", we have the right model for your garden with free delivery across Germany and Austria.
Terminology
Hot tub, whirlpool, outdoor spa — what's the difference?
Whirlpool
The dominant term in Germany and Austria. Technically synonymous with "hot tub" and used interchangeably. Many German product pages use both terms for clarity.
Outdoor spa
An alternative term sometimes used for larger, premium models. The word "spa" emphasises the wellness/therapeutic aspect. Functionally identical to an outdoor hot tub.
Bottom line: "Hot tub", "whirlpool", and "outdoor spa" all describe the same product category. The search term you use often reflects regional vocabulary — but what matters is the underlying quality and specifications.
Quality markers
What makes a good hot tub?
A good hot tub is more than a tub with jets. The key quality markers:
Shell material
Acrylic is the standard for outdoor hot tubs — durable and easy to clean. Quality shells are multi-layer reinforced and UV-resistant.
Insulation
Good full-foam insulation (known as "Scandinavian insulation") significantly reduces heating costs, especially in winter.
Number of pumps
Two or more pumps allow simultaneous massage sessions and distribute jet power more evenly.
Jet count
Between 30 and 90 jets — more is not automatically better. Variety matters (shoulder, back, feet) and targeted placement.
Control system
Modern hot tubs offer touchscreen operation and smartphone-app control — convenient for heating before arrival.
Certification
Look for TÜV and CE certification. These confirm compliance with European safety standards.
All Wellis hot tubs at TwoRelax meet these criteria and are TÜV certified and CE-compliant.
The right choice
Outdoor, indoor, or inflatable: which type is right?
Outdoor hot tubs
(permanently installed)
Acrylic hot tubs for year-round outdoor use. Fully insulated, maintain temperature below freezing.
Indoor hot tubs
Less common in Germany. Require professional ventilation and drainage.
Inflatable hot tubs
Budget entry-level for occasional summer use. Cannot handle sub-zero temperatures — not suitable for year-round use in Germany.
Plug & Play hot tubs
Outdoor hot tubs connecting to a 230V socket — no electrician required. Wellis offers 3 models: Mars, Callisto, Castor.
Size & Capacity
Choose a hot tub by number of people
| People | Typical dimensions | Recommended for |
|---|---|---|
| 2 People | ~2.00 × 1.60 m | Couples, compact terraces |
| 3–4 People | ~2.00 × 2.00 m | Couples with occasional guests |
| 5–6 People | ~2.20 × 2.20 m | Families, small groups |
| 7–8 People | ~2.30 × 2.30 m | Larger families, hosts |
Also consider the full footprint (including maintenance access), the load-bearing capacity of your surface (a filled hot tub weighs 1,500 to 3,000 kg), and the electrical supply (230V or 400V depending on the model).
Price guide
How much does a hot tub cost?
Price ranges vary widely. A rough guide:
Inflatable
€300 – €800
Summer entry-level
Plug & Play entry
€5,000 – €8,000
Year-round outdoor use
Mid-range
€8,000 – €15,000
Enhanced specifications
Premium
€15,000 – €30,000+
Flagship models
Wellis hot tubs at TwoRelax
Price range €5,429 (Mars Plug & Play) to €29,299 (Olympus Life 8 people). All prices include 19% VAT.
Additional costs often overlooked:
- Foundation or patio base: approx. €300 – €1,500
- Electrical installation: €200 – €800
- Crane delivery (White-Glove service): optionally €600 at TwoRelax
- Running electricity costs (see next section)
Operating costs
Is a hot tub an energy drain?
Power consumption depends on three factors: insulation quality, water temperature, and outdoor temperature.
Typical monthly electricity costs (38°C, German average electricity prices):
Well-insulated hot tub in summer
€25 – €50 / month
Well-insulated hot tub in winter
€60 – €120 / month
Poorly insulated hot tub in winter
€150 – €250 / month
How to significantly reduce running costs:
- Heat pump — can reduce heating energy by up to 75%. TwoRelax offers the Smart-In Step 3kW heat pump.
- Insulated cover — the most important energy-saving factor. Prevents heat loss during non-use.
- Adjust water temperature — each degree Celsius lower ≈ 5% energy savings.
All Wellis Life and PeakLife models at TwoRelax feature full-foam insulation and are heat-pump-ready.
Our manufacturer
Wellis — our focus on a European manufacturer
TwoRelax specialises in hot tubs and swim spas from the Hungarian manufacturer Wellis. Wellis has produced hot tubs in Hungary since 2003, manufacturing exclusively within the European Union.
What convinced us about Wellis:
- Continuous full-foam insulation across all outdoor models
- Up to 10-year warranty on the acrylic shell
- TÜV and CE certification
- More than 30 current models (2 – 8 people)
- Spare parts availability within the EU
Wellis series at TwoRelax
ClassicLine
Mars, Callisto, Castor, Jupiter, Venus, Pluto
CityLife
Manhattan, Budapest, Lima, Malaga, Palermo
Life Deluxe
Lugano, Prague, Vienna, Firenze
PeakLife
Atlas, Elbrus, Everest, Kilimanjaro, Mandala, Olympus, Teide
StreamLife Swim Spas
Amazonas, Beach Club, Danube, Elba, Rio Grande
Delivery
Free delivery DE + AT. 2–4 weeks in stock, 6–12 weeks custom configurations. White-Glove service €600 optional.
Installation
Final electrical connection by qualified electrician. Technical documentation on request.
Warranty
Acrylic shell up to 10 years. Frame + plumbing 3 years. Electronics + pumps 2 years.
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Financing with Klarna
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FAQ
Frequently Asked Questions
A good-quality outdoor hot tub for year-round use starts at around €5,000 (Plug & Play entry model). Mid-range models with enhanced specifications range from €8,000 to €15,000, and premium hot tubs for 6–8 people range from €15,000 to €30,000.
Not necessarily. With good insulation, a tight cover, and optionally a heat pump, monthly electricity costs are €25–50 in summer and €60–120 in winter. A heat pump can reduce consumption by up to 75%.
Yes, for private use on your own property you generally do not require a permit. In specific cases (rental flats, local development plans, heritage protection) restrictions may apply. If in doubt, ask your local municipality.
With consistent water care (pH balance, chlorine or salt-water system), change the water completely every 3–4 months. Filter cleaning is weekly; filter cartridges are replaced every 12 months.
That depends on your priorities: price, specifications, origin, service. TwoRelax specialises in Wellis — a European manufacturer from Hungary with a broad model range, solid warranty, and good spare-parts availability within the EU. Other well-known brands in the German market include Jacuzzi, Hot Spring and Villeroy & Boch.
In-stock models are delivered within 2–4 weeks; custom configurations take 6–12 weeks. We coordinate the delivery date with you in advance.
Yes, via Klarna you have several instalment options — from interest-free payment in 3 instalments to 36-month financing with promotional rates starting at 0% APR.
Still have questions?
Ready for your hot tub?
Explore our Wellis collection or contact us for personalised advice via WhatsApp, phone, or email. We answer all questions on model selection, installation, and financing within one business day.
Shop the range
Featured Wellis models
A selection of our most popular Wellis hot tubs. All in stock, free delivery to DE + AT.
More guides
Continue reading
- Whirlpool kaufen — buying guide Premium outdoor whirlpools from Wellis — complete buying guide with prices, sizes, and running costs.
- Jacuzzi or whirlpool? What the terms really mean — and what premium hot tubs TwoRelax actually sells.
- Wellis Whirlpool — complete brand guide Europe's leading hot tub manufacturer: all series, all models, prices, warranty.
- Browse all Wellis hot tubs → The full Wellis catalog at TwoRelax.