Products

Heaters, Wood & Sauna Kit

Every item is hand-picked for DIY sauna builders — from Harvia stoves to thermo-aspen cladding and vapour foil.

Sauna kit is a small market with a few brilliant brands and a lot of poor copies. Every product below has been vetted for heat tolerance, build quality, and suitability for DIY garden & indoor saunas. From Harvia and HUUM heaters to thermo-aspen cladding and aluminium vapour foil — these are the items experienced sauna builders actually use. When you purchase through our links, you support SaunaBuildHub at no extra cost.

Showing 39 products

HUUM HIVE Electric Sauna Heater with Remote Control

Featuredheaters

HUUM HIVE Electric Sauna Heater with Remote Control

5

£1,400 – £1,800

Sculptural Estonian heater holding 50kg of stones — exceptional steam quality. Wi-Fi compatible with HUUM UKU controller. Premium choice for design-led indoor saunas.

Aluminium Foil Vapour Barrier Membrane

Featuredinsulation

Aluminium Foil Vapour Barrier Membrane

4.9

£45 – £80 / roll

Reflective foil-faced kraft paper — the critical sauna vapour barrier. Reflects radiant heat back into the room and stops moisture reaching the insulation.

British Western Red Cedar TGV Cladding

Featuredwood

British Western Red Cedar TGV Cladding

4.8

£60 – £95 / m²

Aromatic, naturally rot-resistant softwood. Warm reddish hue, stable in heat & humidity. Excellent for benches and walls alike.

Vidalux 2-Person Full-Spectrum Infrared Sauna

Featuredinfrared

Vidalux 2-Person Full-Spectrum Infrared Sauna

4.8

£2,400 – £3,200

Premium 2-person FIR cabin with low-EMF carbon panels (under 3 mG at the bench), tempered glass front, cedar interior. Plugs into a 13A socket. The brand most often referenced in EMF-conscious reviews.

Kiki Core 40mm Thermowood Outdoor Cabin Sauna

Featuredcabin-kits

Kiki Core 40mm Thermowood Outdoor Cabin Sauna

4.8

£3,800 – £5,400

Pre-cut cedar cabin sauna kit — 2×2m footprint, panoramic glass front, two-tier benches, ready for a 6kW heater. Assembles in a weekend with two people. The classic UK garden sauna in kit form.

Toughened Clear Glass Sauna Door 690 x 1990mm

Featuredinterior

Toughened Clear Glass Sauna Door 690 x 1990mm

4.7

£280 – £450

Frameless 8mm toughened glass door with bronze tint, magnetic catch, wooden handle. Standard sizing for DIY cabins.

Harvia Vega Lux 6 kW Electric Sauna Heater

heaters

Harvia Vega Lux 6 kW Electric Sauna Heater

5

£450 – £620

Finnish-made 6kW wall-mounted electric heater for saunas up to 8m³. Stainless steel cabinet, holds ~20kg of stones for deep löyly. Industry standard for indoor & cabin builds.

Thermo-Treated Sauna Cladding (Class A Tongue & Groove)

wood

Thermo-Treated Sauna Cladding (Class A Tongue & Groove)

4.9

£55 – £85 / m²

Heat-treated aspen — pale, knot-free, low-resin and stays cool to the touch. The premium choice for sauna interior walls and ceiling.

Harvia PRO 20 ES Wood-Burning Sauna Stove

heaters

Harvia PRO 20 ES Wood-Burning Sauna Stove

4.9

£900 – £1,200

Workhorse 24.1kW wood stove for larger barrel & cabin saunas (8–20m³). External feed option available. The classic UK garden sauna pairing.

Rockwool Flexi 100mm Insulation

insulation

Rockwool Flexi 100mm Insulation

4.8

£25 – £40 / pack

Mineral wool slab — non-combustible, tolerates the high temperatures inside sauna walls and ceilings where PIR can off-gas.

Siberian Larch External Cladding

wood

Siberian Larch External Cladding

4.8

£35 – £55 / m²

Dense, durable, naturally weather-resistant larch for the outside of garden sauna cabins. Silvers beautifully when left untreated.

Harvia The Wall SW60 6 kW Electric Sauna Heater

heaters

Harvia The Wall SW60 6 kW Electric Sauna Heater

4.8

£620 – £880

Swedish-engineered 6kW indoor heater with built-in thermal cut-out and integrated controls. Beautiful brushed steel cabinet, suits family bathrooms and ensuites.

Bronze Glass Sauna Door 790 x 1990mm

interior

Bronze Glass Sauna Door 790 x 1990mm

4.8

£480 – £680

Full-height frameless 8mm toughened bronze-tinted glass sauna door — the premium look for an indoor home sauna. Magnetic catch, soft-close hinges, no visible frame.

How to Build a Sauna — Complete UK Step-by-Step Guide

books

How to Build a Sauna — Complete UK Step-by-Step Guide

4.8

£20 – £32

Step-by-step DIY manual covering framing, vapour barriers, heater sizing, benches and ventilation. A go-to reference for first-time builders.

Harvia M3 SL Wood-Burning Sauna Stove

heaters

Harvia M3 SL Wood-Burning Sauna Stove

4.8

£550 – £750

Compact 16.5kW wood-fired sauna stove for outdoor cabins 6–13m³. Top-loading firebox, traditional Finnish steam. HETAS-listed installer required for UK flue.

TriField TF2 EMF Meter

accessories

TriField TF2 EMF Meter

4.7

£140 – £190

Industry-standard EMF / ELF / RF meter — what reviewers use to verify FIR sauna brand claims. Magnetic field accurate to 0.1 mG. Worth borrowing or buying before you commit to a cabin.

Canadian Cedar Sauna Bucket & Ladle Set

accessories

Canadian Cedar Sauna Bucket & Ladle Set

4.7

£25 – £45

Traditional aspen bucket with plastic insert and long-handled ladle for pouring water on the stones.

Harvia Sauna Heater Stones 20kg (5–10cm)

accessories

Harvia Sauna Heater Stones 20kg (5–10cm)

4.7

£35 – £55

Dense igneous stones that store and release heat slowly for soft, lasting löyly. Replace every 2–3 years on regular use.

HUUM Cliff 6.0 kW Heater with UKU Wi-Fi Control

heaters

HUUM Cliff 6.0 kW Heater with UKU Wi-Fi Control

4.7

£280 – £380

Smart sauna controller with phone app — preheat your sauna from the train home. Pairs with HUUM and many third-party heaters.

Wild Sauna — The Best Outdoor Saunas in Britain

books

Wild Sauna — The Best Outdoor Saunas in Britain

4.7

£18 – £28

Beautifully photographed guide to Finnish & Nordic sauna culture, löyly etiquette, and modern wellness routines.

Fixman Aluminium Foil Tape 50mm x 45m

insulation

Fixman Aluminium Foil Tape 50mm x 45m

4.7

£8 – £15

Heat-resistant tape for sealing every seam of the vapour foil. Use it lavishly — gaps cause moisture damage within months.

Harvia The Wall 4.5 kW Electric Sauna Heater

heaters

Harvia The Wall 4.5 kW Electric Sauna Heater

4.7

£380 – £520

Slim wall-mount 4.5kW electric heater designed for compact indoor saunas (3–6 m³). Built-in controls, 16kg stone capacity, 32A circuit. The default for closet-sized indoor builds.

Canadian Red Cedar Sauna Backrest

wood

Canadian Red Cedar Sauna Backrest

4.7

£40 – £70 / m

African hardwood that stays cool against bare skin even at 90°C. The standard for sauna bench tops where comfort matters.

Shieldmaster 6" Twin-Wall Insulated Flue (1000mm)

heaters

Shieldmaster 6" Twin-Wall Insulated Flue (1000mm)

4.6

£250 – £450

HETAS-compatible 6" twin-wall flue components for wood-burning sauna stoves. Required for safe roof penetration.

Stainless Steel Stove Pipe Heat Shield (60mm)

heaters

Stainless Steel Stove Pipe Heat Shield (60mm)

4.6

£90 – £160

Brushed stainless heat shield reducing safe clearance to combustibles — essential for tight cabin layouts with wood stoves.

Curved Wooden Sauna Headrest

interior

Curved Wooden Sauna Headrest

4.6

£25 – £40

Curved aspen headrests that hook over the top bench — small upgrade, big comfort difference for longer sessions.

Adjustable Hemlock Sauna Air Vent Grille

interior

Adjustable Hemlock Sauna Air Vent Grille

4.6

£35 – £60

Wooden adjustable vents for proper convection — inlet beside the heater, outlet diagonally opposite under the top bench.

Sauna — The Power of Deep Heat

books

Sauna — The Power of Deep Heat

4.6

£25 – £40

Architectural & wellness deep-dive into modern sauna design, with case studies of garden, indoor and bathhouse projects.

Sauna Thermometer & Hygrometer Set

accessories

Sauna Thermometer & Hygrometer Set

4.6

£20 – £35

Twin wall-mounted dial set — temperature 0–120°C and humidity 0–100%. Mount at upper bench height.

16W Warm White Fibre-Optic Sauna Lighting Kit

interior

16W Warm White Fibre-Optic Sauna Lighting Kit

4.6

£120 – £220

Heat-safe fibre-optic star lighting — driver lives outside the hot room, fibres carry light safely through the ceiling.

SaunaMed 4-Person Far-Infrared Indoor Sauna

infrared

SaunaMed 4-Person Far-Infrared Indoor Sauna

4.6

£2,800 – £4,200

Family-size carbon-panel FIR cabin with corner glass design. Bluetooth audio, chromotherapy lighting, 230V/16A circuit recommended. Indoor-only — needs a stable 18–24°C ambient.

Eucalyptus Sauna & Steam Fragrance 500ml

accessories

Eucalyptus Sauna & Steam Fragrance 500ml

4.6

£15 – £28

Pure eucalyptus oil for sauna water — a few drops in the ladle releases a clean, opening aroma. Avoid neat oils on the stones.

1-Person Indoor Far-Infrared Sauna Room

infrared

1-Person Indoor Far-Infrared Sauna Room

4.5

£1,200 – £1,800

Compact 90×90cm carbon-panel infrared cabin — fits in a wardrobe corner, plugs into a 13A socket. Tempered glass door, hemlock interior. The flat-friendly entry point to FIR.

100% Western Red Cedar Slatted Floor Mat

interior

100% Western Red Cedar Slatted Floor Mat

4.5

£40 – £75

Roll-up cedar floor matting that lifts feet off cold tiles and lets water drain through. Easy to lift out and dry.

Stainless Steel Sauna Floor Drain Kit

accessories

Stainless Steel Sauna Floor Drain Kit

4.5

£75 – £140

Stainless 100mm floor gully with sealed tray former — essential for indoor sauna builds where shower runoff and löyly water need somewhere to go. 50mm waste outlet.

Under-Bench Sauna LED Strip Light (12V/230V)

interior

Under-Bench Sauna LED Strip Light (12V/230V)

4.5

£35 – £65

Sauna-rated low-voltage LED strip for under-bench glow lighting. Up to 100°C tolerance.

XL Inflatable Cold Plunge Ice Bath (140 Gallon)

accessories

XL Inflatable Cold Plunge Ice Bath (140 Gallon)

4.5

£180 – £350

Insulated 320L plunge tub for the contrast cycle after sauna. Holds ice water for hours, packs away when not in use.

Finnish Vihta Sauna Whisk (Eucalyptus)

accessories

Finnish Vihta Sauna Whisk (Eucalyptus)

4.5

£10 – £20

Bundled birch leaves used to gently strike the skin in traditional Finnish bathing — improves circulation, releases birch aroma.

Infrared Sauna Heater Panels (2 x 500W + Control)

infrared

Infrared Sauna Heater Panels (2 x 500W + Control)

4.4

£420 – £620

Set of four flexible carbon FIR heating panels for retrofitting an existing sauna or building a custom indoor cabin. 1.6 kW total, plug-in, 5-year warranty.

Affiliate Disclosure: SaunaBuildHub participates in the Amazon Associates Program. When you purchase through our links, we may earn a small commission at no additional cost to you. This helps us maintain this free resource. We only recommend products we genuinely believe help you build a better sauna.

Still have questions?

Chat with our AI Sauna Expert — instant answers on heaters, cedar, ventilation, planning, and the wisdom of löyly.