Sauna Accessories: The Complete Guide
HotColdHaven is reader-supported. Some links are affiliate links and some go to products we sell directly; either way, we may earn a commission at no extra cost to you, and it never changes what we recommend. Full disclosure.
This is the sauna-specific companion to our broader cold plunge & sauna accessories guide. Here we go deep on the gear that’s unique to a sauna — the heater stones, the löyly tools, doors, lighting, and the wood care that quietly determines how long your sauna lasts. We’ve grouped everything by system, flagged each item as an essential, upgrade, or maintenance item, and called out the things owners most often get wrong. New to saunas? Start with the home sauna buying guide.
Heat & steam system
The heart of a traditional sauna — and where the biggest, most-overlooked maintenance lives.
Heater stones Essential & maintenance
~$30–$90What to look for: purpose-sourced volcanic stones — olivine diabase or peridotite — sized to your heater’s spec. Never field or landscape rocks (they can crack or even explode). Soapstone, ceramic and polished options add a cleaner look while still performing.
The stones absorb, store and radiate heat and create the steam when you pour. The part owners miss: don’t under-fill (it hurts heat retention and can damage the heater), inspect annually, and re-stack or replace every 3–5 years — sooner if they crack or crumble. Stones that have sat wrong for years quietly ruin your löyly. Shop sauna stones →
Bucket & ladle Essential
~$30–$80What to look for: wood (Nordic pine, aspen, cedar, teak) or biocomposite — all stay cooler than metal and resist warping. A 16–20″ ladle handle keeps your hand away from the heat; 1–4L bucket capacity. Avoid plastic, which degrades in heat.
Without a bucket and ladle you can’t make löyly — you’re leaving the best part of traditional bathing on the table. Let wooden ones dry fully between uses to prevent mold and warping. Shop buckets & ladles →
Heater guard / safety rail Essential (safety)
~$60–$200What to look for: a wooden guard rail sized to your heater that prevents accidental skin contact with the hot surface — especially important with floor-standing heaters and where children or guests use the sauna.
A small, genuine safety item that’s easy to overlook until someone brushes a 400°F heater. Shop heater guards →
Monitoring & timing
Safety and repeatability — knowing what the room is actually doing.
Thermometer & hygrometer Essential
~$15–$120What to look for: a precision analog dial (e.g., Fischer-style, battery-free) or a digital/Bluetooth unit (e.g., SensorPush-style) that logs temp + humidity. Placement matters: mount it on the side wall at upper-bench level, away from the heater — too close reads far hotter than you actually feel.
This is your safety and performance tool: it keeps sessions in a safe range and lets you repeat your favorite conditions. Shop thermometers & hygrometers →
Sand timer / sauna timer Nice to have
~$15–$40What to look for: a heat-safe 15-minute sand timer for a screen-free way to pace sessions, or a wall sauna timer. Simple, durable, battery-free.
A small ritual-builder that helps you avoid overdoing a session. See sauna temperature & timing. Shop sauna timers →
Comfort & ergonomics
The difference between enduring the heat and relaxing into it.
Backrest & headrest Essential comfort
~$25–$90What to look for: an S-shaped cedar or birch backrest that follows the spine, and a curved headrest for neck support. Thermo-aspen resists warping and absorbs less oil for easier cleanup.
The single biggest comfort upgrade, and especially valuable in infrared cabins where you sit longer and more upright. Shop backrests & headrests →
Bench cushion & foot care Nice to have
~$15–$60What to look for: a heat-safe bench cushion or lumbar pad for longer sessions, and wooden-soled sauna slippers/sandals to protect feet on hot floors and improve hygiene.
Minor on their own, but they add up to a noticeably more comfortable, spa-like session. Shop cushions & slippers →
Textiles & hygiene
Protecting both you and the wood.
Bench towel / cover Essential (hygiene)
~$15–$50What to look for: a dedicated bench towel or disposable bench cover to sit on. Always protect the bench — it keeps things hygienic and stops sweat from staining or degrading the wood over time.
Non-negotiable in a shared sauna, and the easiest way to keep benches looking new. Shop bench towels & covers →
Towels, robe & sauna hat Comfort
~$15–$120What to look for: absorbent cotton or linen towels (Turkish peshtemal are light and quick-drying), a warm robe for cool-downs, and a merino-wool sauna hat to keep your head cooler in high-heat traditional saunas so you can stay in longer.
The hat is a genuinely useful Finnish trick, not a gimmick, in hot löyly saunas. Shop towels, robes & hats →
Wood care & maintenance
The cheap habit that adds years to your sauna — and the part almost everyone skips.
Paraffin bench oil Maintenance
~$15–$30 (500ml–1L)What to look for: a sauna-specific paraffin oil (Harvia, PROSAUNAS) or water-based sauna wax (Tikkurila Supi Saunawax). Safe on cedar, hemlock, aspen, alder, spruce and thermo woods. Roughly 1L covers ~150 sq ft of bench.
Treat benches and high-contact wood 1–3 times a year. Apply to warm (not hot) wood — heat the sauna, then let it cool to ~100°F so pores open and the oil penetrates. It reduces moisture/dirt absorption and prevents cracking and staining. Shop paraffin oil & wax →
Wood-safe cleaner & brush Maintenance
~$15–$30What to look for: a gentle, wood-safe sauna cleaner (tea-tree-based options like BioZap) and a soft-bristle brush. Avoid harsh household chemicals on sauna wood.
A light wash 1–3 times a year keeps the wood looking and smelling fresh; remove fallen whisk leaves promptly so they don’t stain. Shop sauna cleaners →
Doors, lighting & build upgrades
The bigger-ticket items that change how the room performs and feels.
Sauna door (glass or cedar) Upgrade
~$300–$1,200What to look for: tempered glass (8–10mm) for an open, less-claustrophobic feel (frosted/tinted for privacy), or solid cedar/hemlock for better insulation and a traditional look. A well-sealed door is the difference; a leaky one bleeds heat and makes the heater work harder.
Glass is the popular modern choice but conducts more heat; wood insulates better and reaches temperature faster. Match it to your build. Shop sauna doors →
Lighting Upgrade
~$30–$150What to look for: dimmable LED fixtures rated for high heat, in warm white (2200–2700K). Mount indirectly — behind the backrest or under the bench — to eliminate harsh facial shadows and create a spa glow.
Only use heat-rated fixtures; standard LEDs can fail or look harsh. See sauna room requirements. Shop sauna lighting →
Sauna-rated speaker Nice to have
~$80–$300What to look for: a speaker specifically rated for sauna heat and humidity. Do not put a standard Bluetooth speaker inside a hot, humid sauna — it will fail (and can be a hazard).
Optional, but if you want music, buy the purpose-built kind. Shop sauna speakers →
Traditional touches
The optional flourishes that lean into the Finnish ritual.
Vihta / vasta whisk Traditional
~$15–$30What to look for: a birch (vihta/vasta) or eucalyptus whisk used to gently slap the skin — it boosts circulation and releases an aromatic, spa-like scent. Juniper brooms are another traditional option.
A centuries-old Finnish touch. Remember to clear fallen leaves from the benches afterward. Shop whisks →
Aromatherapy oils Nice to have
~$10–$30What to look for: quality eucalyptus, pine or birch oil. The key rule: never put undiluted oil directly on the stones or heater — add 3–5 drops to a full ladle of water, mix, then pour, or use a diffuser cup near the heat. Traditional saunas only — never on infrared heaters.
A real atmosphere upgrade; a reputable plain oil works as well as any sauna-branded version at a fraction of the price. Shop sauna oils →
If you have an infrared sauna
Infrared owners can skip the stones, bucket/ladle and steam tools entirely — there’s no löyly. Prioritize instead a backrest/lumbar support (you sit longer and more upright), quick-dry towels and a bench cover, a timer, and optional red light if it isn’t built in. One hard rule: never apply essential oils to an infrared heater or emitter. See our best infrared saunas and small-space guides.
What to skip
- Field or landscape rocks as heater stones — they can crack or explode; use purpose-sourced volcanic stones.
- Undiluted oils on stones/heaters — damages finishes and overwhelms the room; dilute in the ladle.
- Non-sauna-rated speakers — heat and humidity will kill them.
- Overpriced branded oil kits — a quality plain essential oil is identical for less.
- Plastic ladles/buckets — they degrade in the heat.
Frequently asked questions
How often should sauna stones be replaced?
Inspect them annually and re-stack or replace every 3–5 years, or sooner if they crack or crumble. Use purpose-sourced volcanic stones (olivine diabase/peridotite), never field rocks, and don’t under-fill the heater.
How do I maintain sauna wood?
Sit on a bench towel every session, remove whisk leaves promptly, and let wood dry. Treat benches with sauna paraffin oil 1–3 times a year (on warm wood around 100°F) and wash with a wood-safe cleaner 1–3 times a year.
Glass or wood sauna door?
Glass (tempered 8–10mm) feels open and modern but conducts more heat. Solid cedar/hemlock insulates better and heats faster but blocks light. Either way, a well-sealed door is what keeps heat in.
Can I add essential oils to the heater?
Never apply undiluted oil to stones or any heater. Add 3–5 drops to a full ladle of water and pour, or use a diffuser cup — and never use oils on an infrared sauna at all.
What accessories does an infrared sauna need?
Skip stones and löyly tools. Focus on a backrest/lumbar support, quick-dry towels, a bench cover, a timer, and optional red light. Never put oils on the infrared emitters.
Sources & further reading
- Peak Primal Wellness — Sauna Accessories: The Ultimate Buyer’s Guide & Sauna Door Guide. peakprimalwellness.com
- Haven of Heat — Best Sauna Accessories & How to Finish Sauna Wood. havenofheat.com
- Harvia — Maintaining Your Sauna (paraffin oil, care cadence). support.harvia.com
- Prime Regeneration — Sauna Accessories Guide (stone replacement, ladle specs). primeregeneration.com
Prices are approximate and vary by material and brand. Follow your heater and sauna manufacturer’s instructions for stones, oils and maintenance.