Sauna Buying Guide UK

By Sarb Gill, BSc Biology — Founder, Steam & Oak

Buying a sauna in the UK is mostly four decisions: indoor or outdoor, which heater type, what size, and what budget. Run through them in order and you'll narrow your shortlist in under three minutes.

📖 Want the full picture?

Read the complete UK Sauna Buying Guide 2026 → — ~9,000 words on heaters, indoor vs outdoor, real running costs, install requirements, the wellness research, and what sellers don't tell you. Founder-written, biology-backed, no fluff.

1. Indoor or outdoor?

Indoor if you'll use it solo, post-workout, evenings, year-round with low friction. Cabinets fit through standard 760mm doorways. 13A plug-in on most. Bella 1 from £1,295 → Hekla IR160 at £4,500.

Outdoor if you'll use it as a weekend or social ritual with a partner or friends, properly hot, with cold contrast. Cabin in the garden, base prep, electrical work, longer-lasting build. Marriott 200 from £3,499 → Hekla Cube Sauna 250 at £8,299.

The most common buyer regret is buying outdoor when the realistic use case was a 15-minute post-workout session. Be honest about your habits, not your aspirations.

2. Which heater type?

Type Best for Power
Wood-fired Authentic ritual, weekend use None / off-grid
Electric Finnish Year-round daily use 16A or 32A
Infrared Indoor daily recovery 13A standard plug
Combi (both) Both modes wanted 32A

Infrared is not a starter Finnish sauna — it's a different physiological stimulus. If you want the full ritual (high heat, löyly, cold contrast), buy Finnish from the start.

3. Budget tiers

£1,295–£1,795 — entry indoor infrared (Bella range).

£2,000–£4,500 — step-up infrared (Hekla IR100, IR160) plus indoor Finnish (Hekla Indoor 160).

£3,890–£5,995 — entry outdoor traditional (Fonteyn Rustic Barrels, Woodchop Oval, Hekla Barrel 210, Panorama 1800).

£6,499–£7,599 — premium outdoor (Hekla CUBE range, Fonteyn Uwais combi).

£7,995+ — large outdoor and flagship (Panorama 2400, Hekla Cube Sauna 250).

Add £400–£900 for electrical install on outdoor and £400–£700 for base prep. Wood-fired saves the electrical but adds chimney install.

📖 The full guide

For the complete 9,000-word breakdown — wood-fired vs electric vs infrared in detail, real running cost tables, install requirements, the wellness research with proper hedging, common buying mistakes, and what sauna sellers don't tell you — read the full UK Sauna Buying Guide 2026 →

Quick links to the catalogue

If you'd like to talk through your specific situation, email Sarb directly at help@steamandoak.co.uk — pre-delivery site surveys are free.