How Much Does a Cold Plunge Cost to Run?

Updated June 2026 · by The Cold & Cedar Team

The sticker price gets all the attention, but the question that decides whether a cold plunge fits your life is the ongoing one: what does it actually cost to keep running? Here is a realistic breakdown of electricity for chillers, the cost of ice, water and basic maintenance — with example scenarios so you can estimate your own.

Disclosure: Cold & Cedar is reader-supported. When you buy through links on this page we may earn an affiliate commission, at no extra cost to you. We only recommend gear we would consider ourselves. Learn more.

The short answer

For a chiller-based cold plunge, most people spend somewhere in the region of 10 to 30 dollars a month on electricity, with running cost driven by your climate, how cold you keep the water, how well the tub is insulated, and local power prices. For an ice-based tub, electricity is zero, but you pay for ice instead — and if you plunge often, that can quietly become the bigger bill.

Electricity for a chiller

It is easy to assume a refrigeration unit running around the clock must be costly, but a chiller does not run constantly. Once the water reaches your target temperature, the unit only has to remove the small amount of heat that leaks in from the room, so it cycles on and off. The better insulated your tub and the cooler its surroundings, the less it works.

That means the same chiller can cost very different amounts depending on conditions. In a temperate climate, indoors or shaded, with a snug insulated cover, the monthly cost tends toward the low end. In a hot climate, in direct sun, with no cover and a very cold target temperature, the chiller works much harder and the cost climbs. Insulation and a good cover are by far the biggest levers you control.

The cost of ice

If you go ice-based, ice is your running cost, and it adds up faster than people expect. A single session can take roughly 10 to 20 pounds of ice to bring a small tub of tap water down into the 50s Fahrenheit, and more in summer. Buying bagged ice several times a week through a store turns into a meaningful monthly figure, sometimes rivaling or exceeding what a chiller would cost in electricity. This crossover is exactly why frequent plungers tend to move to a chiller or buy a dedicated ice maker, which trades ongoing bag purchases for a smaller amount of electricity. We compare the two approaches in cold plunge vs ice bath.

Water and maintenance

Beyond cooling, there are a few smaller ongoing costs. You will refill and change the water periodically — less often with good filtration, more often without it — which uses some water and, in many places, costs very little. Water care means filters to replace now and then and, depending on your setup, sanitising additions or an ozone or UV system to keep things clean. None of these are large individually, but they belong in an honest running-cost picture, and keeping the water clean also helps the system run efficiently.

Example cost scenarios

Every home is different, so treat the table below as illustrative ballpark ranges rather than a quote. It shows how the same setup can land in very different places depending on climate, cover and how often you plunge.

Scenario	Cooling method	Rough running cost	Notes
Occasional, ice in a bathtub	Bagged ice	Low if infrequent	Cheap to start; ice cost scales with use
Frequent, ice-based tub	Bagged ice	Can get pricey	Several sessions a week of bagged ice adds up
Chiller tub, temperate + covered	Chiller	~$10–15/mo electricity	Insulation and a cover keep it low
Chiller tub, hot climate / no cover	Chiller	~$25–30+/mo electricity	Heat and sun make the chiller work harder
Ice maker instead of bags	Home ice maker	Modest electricity	Trades bag purchases for a small power cost

Illustrative estimates only — your actual costs depend on local electricity and ice prices, climate, insulation and usage. Equipment prices change often; tap “check current price” for live numbers.

How to keep running costs down

Always use an insulated cover. A tight cover when the tub is idle is the single biggest saver for a chiller, because most of the cost is replacing heat that leaked in.
Mind the location. Out of direct sun and away from heat sources means less work for the chiller.
Do not over-chill. Setting the water colder than you actually enjoy wastes energy for no real benefit — see how cold a cold plunge should be.
Keep the water clean. Good filtration and water care help the system run efficiently and cut down on full water changes.
If you use ice, make it. A cheap ice maker usually beats buying bags once you plunge regularly.

The bigger financial picture

Running cost is only one half of the math. A chiller tub costs much more up front but little to run; an ice setup is cheap to buy but can cost more over time if you plunge often. Which works out better depends almost entirely on how frequently you use it. If you are weighing the initial spend, the best cold plunge guide covers chiller tubs and the best budget cold plunge guide covers cheaper ice-based and DIY routes. If your plan is a full cold-and-heat space, the home recovery room guide looks at total setup costs.

Get the free Home Recovery Starter Guide

A practical PDF: how to plan a cold plunge + sauna setup for any budget. No spam — unsubscribe anytime.

Frequently asked questions

How much does a cold plunge cost to run per month?

A chiller-based cold plunge typically uses roughly 10 to 30 dollars of electricity a month, depending on your climate, how cold you keep it, how well the tub is insulated and local power prices. An ice-based tub has no power cost but you pay for ice instead, which can easily match or exceed that if you plunge often.

Is it expensive to run a cold plunge chiller?

For most people, no. A chiller only has to remove the heat that leaks into an insulated tub, so it cycles on and off rather than running constantly. In a temperate climate with a well-covered tub, the monthly electricity cost is usually modest. Hot climates, no cover and very cold target temperatures push it higher.

Is it cheaper to use ice or a chiller?

It depends on how often you plunge. For occasional use, buying ice is cheaper overall because you avoid the chiller purchase. For frequent use, ice gets expensive fast, and a chiller, despite its higher up-front cost, usually wins on running cost within months. A cheap ice maker is a middle option.

Does a cold plunge use a lot of electricity?

Not as much as people expect. A chiller is far less power-hungry than something like an electric heater, because cooling an already-cold, insulated tub takes relatively little energy once it reaches temperature. Insulation and a good cover are the biggest levers for keeping that number down.

How can I lower my cold plunge running costs?

Keep a tight-fitting insulated cover on the tub whenever it is not in use, place it out of direct sun and heat, do not set the temperature colder than you actually need, keep the water clean so the system runs efficiently, and consider an ice maker instead of bagged ice if you go the ice route. Small habits make a real difference over a year.