Cedar hot tubs in winter:
a cold climate guide
Cedar hot tubs perform better in cold climates than any acrylic or fiberglass alternative. Western red cedar handles Hudson Valley winters without cracking, warping, or losing structural integrity. This guide covers how to use your cedar tub year-round, how to winterize it for seasonal closure, and why winter is when many Hudson Valley buyers get the most out of their tub.
Why cedar wins in cold climates
Built for the Hudson Valley
four-season reality
Western red cedar has been used for water vessels, barrels, canoes, and outdoor structures in cold-climate North America for centuries. Its natural oils — primarily thujaplicin — make it resistant to rot, bacteria, and freeze-thaw stress in ways that manufactured materials cannot replicate.
Acrylic and fiberglass hot tub shells develop microcracks under freeze-thaw thermal stress. Their foam insulation absorbs moisture over time, compresses, and loses effectiveness. In a Hudson Valley winter — temperatures swinging from 45°F in the afternoon to single digits overnight — acrylic shells face exactly the conditions they perform worst in.
A cedar hot tub behaves differently. The stave-and-band cooperage construction allows the wood to move slightly with thermal changes, rather than cracking under stress. In 15 years of installing cedar tubs from Sullivan County up through Columbia County, John Cox has never had a structural failure attributable to cold weather. The wood simply handles it.
Step-by-step winterization
How to properly
close a cedar tub
Winterizing a cedar hot tub is not complicated, but each step matters. The goal is simple: no standing water left in any pipe, fitting, or component when temperatures drop below freezing. The wood itself is not the concern — it is the plumbing.
Test and balance one last time
Before draining, run the tub normally for a few hours and ensure chemistry is balanced. This prevents any residue from dried, unbalanced water sitting on the wood interior during storage. Then proceed to drain.
Fully drain the tub
Open the main drain valve and drain completely. A submersible pump speeds this up significantly. Do not leave any standing water in the tub basin — even a small amount left in low spots can freeze and stress fittings or the floor connection.
Blow out all plumbing lines
This is the most important step. Connect an air compressor to each plumbing port and blow through every line until no water comes out. This includes the heater inlet and outlet, the pump lines, filter housing connections, and any jet lines. Water left in pipes in freezing temperatures will expand, crack fittings, and damage the heater housing.
Remove filter, drain plugs, and leave valves open
Remove the filter cartridge and store it indoors — it should not sit outside in a freeze-thaw cycle. Open all valves. Remove all drain plugs. The goal is for any residual moisture to exit freely rather than be trapped where it can freeze.
Handle the heater and electrical per the manufacturer
The heater unit should be protected according to the manufacturer's winterization instructions — typically by draining and drying the heat exchanger. Your electrician can disconnect power at the circuit. Do not leave electrical connections exposed to moisture through winter.
Leave the tub exposed — cedar does not need a tarp
A common mistake: covering the drained tub with a tarp, which traps moisture against the wood and promotes rot at connection points. Leave the wood open to air. Cedar naturally weathers and dries. The wood needs ventilation in winter, not protection.
The winter advantage
Why winter is peak season
for cedar tub owners
Most buyers who purchase a cedar tub for warmer months discover the same thing: winter becomes their favorite time to soak. The contrast of cold air against hot water is more vivid, the experience is more distinct, and the benefits — both physical and psychological — are amplified. Many of the Hudson Valley properties John Cox has installed in report higher winter use than summer use.
Year-round soaking
Cedar tubs hold heat efficiently in cold air with a quality insulated cover. The soak itself — stepping out of a hot tub into 25°F air — is a physical experience that many owners describe as one of the best things about owning a cedar tub. A blanket of steam in a Hudson Valley backyard in January is a specific kind of luxury that does not require weather cooperation.
Contrast therapy with ice plunge
Alternating between a hot cedar soak and a cold plunge produces measurable cardiovascular and recovery benefits. In winter, the ice plunge is already doing most of the work — cold air at 25°F and a plunge at 45°F create the contrast athletes and wellness-focused buyers are after. Many buyers add the cedar ice plunge specifically for winter contrast therapy.
Airbnb and vacation rental demand
Hudson Valley and Catskill vacation rental demand peaks in winter months — skiing at Hunter and Windham, holiday weekends, and winter escape bookings. An outdoor cedar hot tub is one of the highest-impact amenities for winter rental guests. Hosts who offer a functioning hot tub in February see significant nightly rate lift over comparable properties without one.
Energy efficiency in winter
Keeping a cedar tub at temperature in winter costs more than in summer — the temperature differential between the water and the air is greater. Two practices significantly reduce operating cost: lower the set temperature by 3 to 5°F between soaks rather than keeping at peak temperature continuously, and use a high-quality insulated cover. Most owners in Dutchess and Ulster counties see a $50 to $120 monthly increase in their electric bill in peak winter months.
"The question I get most often from buyers considering a cedar tub is whether it will work in a Hudson Valley winter. That question always surprises me — winter is when you want it most. Sitting in 104-degree water while it is snowing and 15 degrees outside is an experience that people do not forget. The wood handles the cold better than they will."John Cox — Cedar hot tub craftsman, Hudson Valley Hot Tubs, Tivoli NY
Installing before winter?
Most Hudson Valley installs run through November
Fall is the right time to install if you want the tub ready for winter soaking season. Call John Cox to discuss your site, your timeline, and what a cedar tub installation looks like on your property.
See Our Work Schedule a ConsultationCold climate questions
Answered by
the builder
Can you leave a cedar hot tub outside in winter?
Yes. Western red cedar handles freeze-thaw cycles without cracking, warping, or losing structural integrity. Cedar hot tubs have been used year-round in New York, Vermont, and Canada for generations. A properly maintained cedar tub is more cold-climate durable than any acrylic or fiberglass alternative.
Do cedar hot tubs freeze?
A filled, running cedar tub will not freeze in Hudson Valley winters — the heater keeps the water circulating. If you close the tub seasonally, it must be fully drained and all plumbing blown out. A completely drained tub can sit outdoors through any winter safely. The wood is not the concern — standing water in pipes is.
How do you winterize a cedar hot tub?
Drain completely, blow out all plumbing lines with an air compressor, remove and store the filter cartridge, and leave all valves and drain plugs open. The tub itself needs no covering. The key is ensuring no water remains in any pipe or fitting where freezing could cause damage.
Is it worth using a cedar hot tub in winter?
Most buyers say yes — and many report higher winter use than summer use. The contrast of cold air and hot water is more vivid in winter. Paired with a cedar ice plunge for contrast therapy, winter is the most compelling time to own a cedar tub in the Hudson Valley.
How much does it cost to heat a cedar hot tub in winter?
In Hudson Valley winters, a well-insulated cedar tub held at 104°F typically adds $50 to $120 per month to your electric bill. Lowering the set temperature by 3 to 5°F between soaks and using a quality insulated cover are the two most effective ways to reduce heating costs.
Can I use an ice plunge alongside my cedar tub in winter?
Yes. Contrast therapy in winter is more effective than in summer because cold air amplifies the transition. After a hot soak, stepping into a cedar ice plunge at 40 to 50°F produces the cardiovascular and recovery response that athletes and wellness-focused buyers are after. The cedar ice plunge is our most popular cold-weather add-on.
Where we install
Cedar tub installations
throughout the valley
We install cedar hot tubs in all eight counties of the Hudson Valley and Catskills. Every installation includes a site assessment, a full owner walkthrough, and ongoing support from the builder.
Ready for your first winter soak?
Call John Cox to discuss installation timing, site requirements, and what a cedar tub on your property looks like in December.
Call (917) 578-9948