Indoor Infrared Sauna Buying Guide UK (2026): Sizes, Costs & How to Choose

An indoor infrared sauna brings daily wellness into your home without the weather, the walk down the garden or the planning headaches of an outdoor build. This guide walks through everything you need to choose the right one: how infrared works, far infrared versus full spectrum, what size to buy, where to install it, what it costs to run, and which models suit which budget. Our indoor infrared range starts from £2,095, and you can browse the full lineup any time on our indoor infrared saunas page.

Why choose infrared for an indoor sauna?

Infrared cabins heat your body directly rather than warming the air around you. That means they run at a gentle 45 to 65°C instead of the 80 to 95°C of a traditional Finnish sauna, while still producing a deep, satisfying sweat. The lower temperature makes sessions more comfortable, easier to take daily, and far cheaper to run. For an indoor setting it is the practical choice: no flue, no water, no drainage, and most cabins plug into a standard socket. People buy them for muscle recovery, easing tension, supporting circulation and simply switching off at the end of the day.

Far infrared vs full spectrum

This is the first decision to make. Far infrared is the most common type and delivers a deep, gentle heat that is ideal for relaxation and everyday recovery. It is the wavelength most associated with cardiovascular and detox benefits, and it runs at the lowest cabin temperatures. Full spectrum cabins add near and mid infrared on top of far infrared. Near infrared is linked with skin renewal and recovery at a shallower depth, mid infrared targets soft tissue, and far infrared still provides the core heat. Full spectrum costs more, typically £1,000 to £2,000 above a comparable far infrared cabin, but gives you all three wavelengths in one unit. If you mainly want relaxation and daily use, far infrared is plenty. If you want the most complete therapy experience, choose full spectrum.

What size indoor infrared sauna do you need?

Capacity is really about footprint and how many people will use it at once. Here is how our range breaks down:

1 person cabins are compact units around 900mm × 900mm that fit an en-suite, spare bedroom or home gym corner. The 1 Person Indoor Infrared Sauna KY004 starts the range at £2,095.

2 person cabins are the most popular size, good for couples or one user who wants more room. The Canadian Spa Chilliwack (£2,495) is a well-loved far infrared starter, the Haven Indoor Infrared Sauna (£2,995) adds carbon and ceramic heat with built-in storage, and the low-EMF full-spectrum GH Vision T2 (£5,295) is the premium pick.

3 person cabins suit small families and shared use. The 3 Person Indoor Infrared Sauna KY007 (£3,695) and the flagship full-spectrum GH Vision T3 (£5,995) lead this line.

4 person cabins are full-size family units. The Canadian Spa Whistler (£4,500) and the premium Aurora Far Infrared Sauna (£6,495), with fourteen panels and convertible loungers, sit at the top of the range.

Where can you put an indoor infrared sauna?

Almost anywhere with a hard, level floor and a plug socket. Spare bedrooms, home gyms, garages, basements, bathrooms and utility rooms are all common. You need around 1.9 to 2m of ceiling height for most cabins, plus a small air gap around the unit for ventilation. Infrared cabins produce no steam and need no plumbing or flue, so placement is far simpler than a traditional sauna. A tiled or solid floor is ideal, though any flat, stable surface works.

Do indoor infrared saunas need special wiring?

Most one and two person cabins plug straight into a standard 13A household socket, so no special wiring is required. Larger full spectrum and three to four person cabins draw more power and may need a dedicated higher amperage circuit, typically around 20A, fitted by a qualified electrician. The exact requirement is listed on each product page, and if you are unsure our team can confirm it before you order. Never guess on electrics for a larger unit. Have a qualified electrician install any hardwired supply.

How much does an indoor infrared sauna cost to run?

This is one of infrared's biggest advantages. Most home cabins draw 1.5 to 2.5 kW, so a 45-minute session costs only around £0.40 to £0.55 at a typical UK rate of 28p per kWh, roughly £2 a week at four sessions. Because the cabin sits in an already-warm room, there is almost no heat-up penalty in winter either. You can model the exact figure for any cabin with our Sauna Running Cost Calculator.

What to look for in a quality cabin

Build quality matters. Look for Canadian Hemlock or Spruce interiors, which are smooth, low-resin and pleasant to sit in, and tempered glass doors. On the technology side, low-EMF carbon heaters are the standard to aim for, ideally rated well below the levels of cheaper imported cabins. Useful extras include chromotherapy lighting, Bluetooth audio, a clear digital control panel and good ventilation. A solid warranty on both the timber and the electrical components is a sign the maker stands behind the cabin.

Choosing the right indoor infrared sauna

If you want a simple summary: choose far infrared for relaxation and daily use, or full spectrum for the most complete therapy. Size to the space and the number of users, check the wiring requirement against your room, and prioritise low-EMF heaters and a good warranty. Our indoor range spans £2,095 to £6,495 across one to four person cabins, so there is a fit for most homes and budgets. Browse the full lineup on our indoor infrared saunas page, or call our UK team on 0330 133 6617 for tailored advice.

Frequently asked questions

How much does an indoor infrared sauna cost in the UK?

Indoor infrared saunas at Nuovo Luxury range from £2,095 for a compact one person cabin up to around £6,495 for a premium four person model, depending on size, materials and whether it is far infrared or full spectrum.

Should I choose far infrared or full spectrum?

Choose far infrared for relaxation and everyday recovery at the lowest running cost. Choose full spectrum if you want near and mid infrared as well, for a broader therapy experience. Full spectrum typically costs £1,000 to £2,000 more.

Do I need special wiring for an indoor infrared sauna?

Most one and two person cabins plug into a standard 13A socket with no special wiring. Larger cabins may need a dedicated higher amperage circuit fitted by a qualified electrician. The requirement is listed on each product page.

Where is the best place to put an infrared sauna indoors?

Any dry, level indoor space with a plug socket works well, including spare bedrooms, home gyms, garages, basements and bathrooms. Allow around 1.9 to 2m of ceiling height and a small air gap around the cabin.

How long does an indoor infrared sauna take to assemble?

Most cabins arrive flat-packed and assemble in around one to two hours with basic tools, usually with two people. No plumbing is required and most plug straight in.

Are indoor infrared saunas expensive to run?

No. A typical session costs around £0.40 to £0.55 at 28p per kWh, roughly £2 a week with regular use. Use our running cost calculator for an exact figure for any model.