Do I Need 400V for an Outdoor Whirlpool?

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Whether you need 400V depends on the hot tub model. The Wellis Firenze Life Deluxe sold by TwoRelax operates on 230V standard household power — no 400V supply needed. All other Wellis models (Prague, Vienna, Lugano Life Deluxe) require a 400V/32A CEE three-phase connection installed by a licensed electrician. TwoRelax provides the electrical specification for each model before purchase.

Which TwoRelax Models Require 400V and Which Don't?

Does My German Home Already Have 400V Supply?

Most German residential properties built after 1960 have three-phase (400V) supply to the main distribution board (Hauptverteilung). However, having 400V at the board does not mean there is a ready 400V outlet in the garden — a licensed electrician must run a dedicated circuit from the board to the hot tub location. This is a standard residential electrical job; most qualified Elektrobetriebe complete it in 2–4 hours.

How Much Does a 400V Garden Circuit Cost?

A standard 400V/32A garden circuit installation by a licensed German electrician typically costs €200–€800 depending on cable run length and local labour rates. The required socket is a 32A CEE industrial (red, five-pin) socket. The electrician must issue a VDE-compliant installation certificate. TwoRelax can provide electrician recommendations by postcode on request.

What Happens If I Order a 400V Model Without Having the Supply Ready?

TwoRelax will ask you to confirm electrical readiness before scheduling delivery. If the connection is not in place on delivery day, the tub can be placed but not commissioned — requiring a return visit. TwoRelax strongly recommends arranging the electrical installation at least 2 weeks before the delivery date to avoid rescheduling.

Is a 400V Hot Tub Worth the Extra Electrical Installation Cost?

For families wanting 6+ seats, 50+ jets, and dual-pump performance, the €200–€800 one-time electrical installation cost is a minor addition to a €6,000–€10,000+ hot tub purchase. The 400V models provide substantially higher jet performance, faster heating, and greater simultaneous user capacity than the 230V Firenze. For couples or solo users prioritising low cost and simplicity, the 230V Firenze is the better choice.

Disclaimer: The information in this article is provided for general informational purposes only and does not constitute professional, medical, electrical, or installation advice. Product specifications, jet counts, dimensions, electrical requirements, pricing, and availability — whether relating to TwoRelax products or third-party brands — may be inaccurate, incomplete, or subject to change without notice. References to third-party brands, companies, products, or pricing are included for general context only and are based on publicly available information at time of writing, which may vary significantly by dealer, region, configuration, and date. TwoRelax makes no warranties as to the accuracy of any such third-party information. Always consult current official product documentation, installation manuals, and qualified professionals before making any purchase or installation decision. Health, wellness, and therapeutic information in this article is for general reference only and is not medical advice — consult a qualified physician before beginning any health or therapeutic programme. Individual results vary. TwoRelax accepts no liability for any decisions made, or actions taken, in reliance on the content of this article.