wood-fired
Narvi 16 kW
feature highlights
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made in canada
quality
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4-6 people
size & fit
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western red cedar
premium interior
XTREME | outdoor wood burning sauna
$15,499.00 USD
16 kW Narvi wood-burning stove, zero electrical required
110 lbs of sauna stones, real Finnish lΓΆyly
facing benches seat 4-6 comfortably
full chimney system included
Options: XTREME | outdoor wood burning sauna
XTREME | outdoor wood burning sauna
XTREME | outdoor sauna
XTREME | outdoor wood burning sauna
$15,499.00 USD
+
$47.00 USD
Keep water, essences, and essentials within arm's reach. A cedar shelf that mounts inside your sauna so hydration never means stepping out.
Open design keeps bottles and sauna essences visible and easy to grab mid-session
Crafted from high-quality cedar to match your sauna interior and handle the heat
Holds water bottles, essences, and care products in one tidy spot
Compact footprint mounts cleanly without crowding your bench space
13.5" (34 cm) W x 8" (20 cm) H x 5" (13 cm) D.
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$79.00 USD
A gently arched cedar backrest that supports an upright seated position, easing the strain of sitting against a flat bench wall.
Convex arch fits the small of your back and encourages natural posture
Crafted from smooth, heat-safe cedar that blends into your sauna interior
Slim, lightweight profile rests against any bench, nothing to install
Simple design at an easy price point for outfitting every seat
17.5" (44.5 cm) W x 20.5" (52 cm) H x 4.5" (11.5 cm) D.
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$83.00 USD
A contoured cedar backrest that follows the natural curve of your spine, so you can lean back and actually relax instead of sitting upright on a flat bench.
Concave slatted design cradles your lower back with proper lumbar support
Crafted from smooth, heat-safe cedar that blends into your sauna interior
Turns a flat bench into a reclined seat, no installation required
Slatted construction lets heat circulate so the surface never feels stifling
17.5" (44.5 cm) W x 19.5" (50 cm) H x 5" (13 cm) D.
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$72.00 USD
Ergonomic cedar headrests that support your neck at the right angle, so you can fully settle in and let your session do its work.
Angled ergonomic profile supports your head and neck without strain
Crafted from durable, heat-safe cedar that matches your sauna interior
Smooth, splinter-free finish built for high-heat, high-humidity use
Sold as a pair: one for you, one for whoever joins you
4.5" (11.5 cm) D x 15" (38 cm) W x 10.25" (26 cm) H.
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$47.00 USD
A Finnish linen-blend seat cover from Jokipiin that keeps your bench hygienic and comfortable. MΓ€nty, meaning pine, wears its heritage in the pattern.
Linen blend absorbs twenty times its weight in water and dries fast between sessions
Naturally antimicrobial fibers protect against musty odors, wash after multiple uses
Woven in Finland by Jokipiin, sauna textile makers who know the ritual
Linen and cotton fibers soften with every use and hold up for years
18" x 22" (46 x 56 cm)
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$90.00 USD
The full-bench version of the Finnish linen seat cover from Jokipiin. Covers a two-person bench end to end, keeping the whole seat hygienic and comfortable. MΓ€nty, meaning pine, wears its heritage in the pattern.
Runs the length of a standard bench, one cover instead of two singles
Linen blend absorbs twenty times its weight in water and dries fast between sessions
Naturally antimicrobial fibers protect against musty odors, wash after multiple uses
Woven in Finland by Jokipiin, and the linen-cotton blend softens with every use
18" x 63" (46 x 160 cm)
complete your dream setup:
save $2,500.00
XTREME | plunge
Sale priceFrom $8,499.00 USDRegular price
$10,999.00 USD
Pairs well with
5-year warranty on outdoor saunas
1-year warranty on HUUM heater
in-house support team
pay over time with affirm
feature highlights
-
wood-fired
Narvi 16 kW
-
made in canada
quality
-
4-6 people
size & fit
-
western red cedar
premium interior
XTREME | outdoor wood burning sauna
$15,499.00 USD
free personal consultation
our sauna specialist will help you find which sauna is right for you.
features
specification
financing options
weβve partnered with trusted financing providers to offer flexible pay-over-time options. all loans are open, meaning you can pay them off early at any time without penalty.
affirmΒ (as low as $262/month)
- 6-month term at 0% apr
- 12-month term at 0% apr
- 24-month term at 9.98% apr
rates based on 0β31.99% apr. subject to eligibility and approval.
apply at checkout by selecting affirm in the payment section.
pay plan by rbcΒ (as low as $183.25/month)
- 12-month term at 0% apr
- 24-month term at 10% apr
- 36-month term at 10% apr
rates based on 0β18.99% apr. subject to eligibility and approval.
apply at checkout by selecting pay plan by rbc in the payment section.
financeitΒ (as low as $17.63/week)
- amortization periods up to 240 months
- 3.99% apr
rates based on 13.99β18.99% apr. subject to eligibility and approval.
shipping & returns
we ship across canada and the united states. delivery timelines vary by product and location, and our team will confirm an estimated delivery window after purchase. youβll receive updates and tracking information as your order moves through fulfillment.
international shipping may be available on a case-by-case basis. if youβre located outside north america, contact us at support@coldture.com and weβll help determine next steps.
returns, warranties, and delivery details are outlined in our full shipping & return policy.
improved circulation β’ faster recovery β’ mental clarity β’ stress resilience β’ better sleep β’
wood-fired heat. built for the elements.
real fire. real steam. zero wiring.
the xtreme wood burning sauna pairs the same cold-climate shell as our flagship xtreme E outdoor sauna with a Finnish Narvi NC16 wood-burning stove. no electrician, no dedicated circuit, no panel upgrade. just dry firewood, a match, and traditional sauna heat the way it has been done in Finland for generations.
built for snow, rain, heat, and freeze-thaw cycles, it delivers consistent high-heat sessions in backyards, cottages, and off-grid properties year-round. powder-coated metal shell, western red cedar interior, 10 mm bronze tempered glass, and a 16 kW stove that heats rooms up to 565 cubic feet.
light the fire. settle in. let the heat do the rest.
why heat therapy matters
heat therapy supports recovery, circulation, and mental clarity. as the body warms, blood flow increases, muscles relax, and the nervous system calms. over time this simple practice supports stronger recovery, better sleep, and a clearer mind.
circulation
heat encourages healthy blood flow throughout the body.
muscle recovery
warmth helps release tension and support recovery after activity.
stress reduction
heat helps calm the nervous system and reduce physical tension.
sleep support
many people experience deeper sleep after sauna sessions.
built for every season
the outdoor wood burning sauna is designed to perform in changing climates. from freezing winters to warm summer evenings, the structure is built to retain heat, protect the stove, and deliver a consistent sauna experience.
and because it runs on firewood, your recovery does not depend on the grid. cottage, acreage, or backyard: if you can stack wood, you can sauna.
built with intention
every detail of the outdoor sauna xtreme is designed for durability, performance, and everyday use.
from the materials we select to the way the structure retains heat, the goal is simple: create a sauna that performs reliably and feels solid for years.
this is recovery equipment designed for long term ownership.
built for company
two full-length benches face each other across the stove, each 64 inches long and 18 inches deep, seating up to 6 people comfortably. a low footrest runs along both sides, so you can sit upright, stretch out, or plant your feet and lean in.
with 31Β½ inches of clear width between the benches and the stove centred at the front, everyone gets heat, everyone gets space, and nobody draws the short seat. this is a sauna designed for conversation, for family, and for the long sit.
facing benches, both sides
64" x 18" per side, 37" bench height, with a 7" footrest at 18Β½" for a natural seated posture.
up to 6 people
the largest wood-fired footprint in the Coldture lineup: 88" wide, 89Β½" tall, 73ΒΌ" deep.
immersive glass design
full glass front door with 10 mm bronze tinted tempered glass and insulated side windows create a brighter, more open sauna experience while maintaining heat retention and durability. a magnetic door closure ensures a secure seal and smooth, quiet operation.
heated by fire, the Finnish way
16 kW of wood-fired power
sized for rooms from 280 to 565 cubic feet, with output to spare for cold Canadian winters.
110 lbs of sauna stones
a deep stone bed stores heat and delivers soft, rolling steam with every ladle.
70% total efficiency
clean, efficient burning certified to EN 15821, with CO emissions of just 0.07% at 13% Oβ.
built in Finland by Narvi
Narvi has been building wood-burning sauna stoves in Finland for decades. this is the real thing.
adjustable draft control
regulate heat and burn time with the ash drawer. a calm flame, a hot room, and stones that hold their heat.
the coldture system
heat, cold, and light work together to support recovery, circulation, and long term wellness.
the sauna increases circulation and prepares the body for recovery. cold exposure then stimulates the nervous system and supports resilience. red light helps support muscle recovery and cellular repair.
used together, these tools create a powerful recovery cycle used by athletes, wellness professionals, and people building consistent routines.
heat
cold
light
repeat
make it a complete system:
Save $500.00
Sale price$3,499.00 USDRegular price
$3,999.00 USD
portable
simple to move
160 cm footprint
bathtub-sized
Save $2,500.00
Sale priceFrom $8,499.00 USDRegular price
$10,999.00 USD
built for outdoors
built for all weather conditions
5ΛC (41ΛF)
low temp
Save $500.00
Sale price$3,499.00 USDRegular price
$3,999.00 USD
95 cm footprint
armchair-sized
portable
simple to move
Save $2,500.00
Sale priceFrom $7,499.00 USDRegular price
$9,999.00 USD
wi-fi control
for temperature
3ΛC (37ΛF)
low temp
XTREME DUAL | outdoor contrast system
$13,899.00 USD
contrast-ready
hot & cold
built for outdoors
built for all weather conditions
frequently asked questions
can the wood burning XTREME be used year-round?
yes. it is designed for permanent outdoor installation and reliable year-round use, including in cold winter climates. the exterior shell is identical to our standard XTREME outdoor sauna.
does it need an electrical connection?
the Narvi NC16 stove requires no electricity at all. no dedicated circuit, no breaker, no electrician for the heater.
what kind of wood should I use?
natural dry hardwood or softwood logs with less than 20% moisture content. ideal firewood is roughly 5 cm in diameter and 33 cm long. never burn treated wood, pellets, briquettes, chipboard, waste, or liquid fuel.
is a chimney included?
yes. a complete T600-class, CE-marked modular flue system is included, centred on the rear of the sauna and running to 120 inches overall.
how long does the sauna take to heat up?
heat-up time depends on outdoor temperature, firewood quality, and firing technique. one firebox of wood burns for roughly half an hour, and most users add one to two rounds of wood to reach and hold session temperature.
are sauna stones included?
the Narvi NC16 uses 110 lbs of 4 to 6 inch sauna stones.
is maintenance required?
empty the ash drawer before each heating, wipe interior surfaces after use, and have the chimney swept annually. sauna stones should be re-arranged once per year and replaced every other year.
is delivery and installation included?
delivery and installation are not included in standard pricing. additional fees may apply for remote or island locations. installation is available at a variable rate depending on location.