9 DIY & Budget Ice Bath Ideas for Cold Plunging at Home
You don't need a top-tier chiller tub to start cold plunging. The difference between a premium tub and a livestock trough full of ice is not the water — it is convenience, temperature control, filtration, insulation and maintenance. A budget setup means setting the temperature by hand with ice instead of dialling it in and holding it, no filtration loop, whatever insulation the container came with, and a maintenance routine built around hauling ice and changing water rather than servicing a filter. Below are nine setups people commonly use — eight of them budget builds, plus one we recommend against — with honest pros, cons and estimated cost ranges so you can pick the one that fits your space and budget.
About the cost figures on this page. Every dollar figure below is a typical estimated range, not a live price. Ranges were checked in July 2026 against publicly listed prices at general retailers and farm-supply stores in the United States, taking the common low and high ends rather than an average. Prices vary by size, region, retailer and season, and second-hand items vary far more than that. Where a box links to Amazon we show a price category instead of a range, because we have no approved tool for live Amazon prices — always check the price on the retailer's own page. Not independently confirmed by PlungeWise.
1. Galvanized stock tank — the classic
Galvanized stock tank Budget
A livestock watering trough is the most common DIY plunge: it is cheap, it holds a lot of water, and it is built to sit outdoors year-round in a field. A 100–150 gallon tank is the usual size people pick. The construction is single-wall galvanized steel with no insulation layer, so ice will melt faster than in an insulated tub — we have not measured by how much. A foam or pool-noodle lid is the standard fix. The other trade-off is the look: it looks like a farm trough, because it is one.
Pros
- One of the cheapest full-size volumes available
- Built for permanent outdoor use
- Easy to add a chiller later
Cons
- Uninsulated single-wall metal — expect heavy ice use
- Ice consumption not measured by PlungeWise
- Industrial appearance
2. Inflatable barrel tub
Inflatable barrel tub (e.g. The Cold Pod) Budget
Purpose-made inflatable tubs pack away when not in use and need no tools to set up, which makes them the easiest way to test whether cold plunging is for you before spending more. Manufacturers describe the walls as insulated, and a lid is usually included; we have not measured how that compares with a bare trough in practice.
Pros
- Low cost, no tools, no build
- Packs away; portable
- Manufacturer describes the walls as insulated; lid included
Cons
- No temperature control (ice only)
- Inflatable walls — expect a shorter service life than metal
- Insulation performance not measured by PlungeWise
3. Large plastic tote or storage bin
Heavy-duty tote / storage bin Budget
A 50–100 gallon heavy-duty storage tote is the cheapest "tub-shaped" option. Water is heavy — roughly 8.3 lbs per gallon — so a thin-walled bin can bow or split under the pressure of a full fill. Choose a rugged one, don't overfill, and treat this as a short-term way to try the habit rather than a permanent setup. Totes are also shorter and narrower than a purpose-built tub, so check the internal dimensions against your own height before buying.
Pros
- Cheapest tub-shaped option; available anywhere
- Light and easy to empty
Cons
- Can flex or crack if the walls are thin
- Small internal dimensions — check them against your height
4. Repurposed bathtub (indoor or outdoor)
Old / freestanding bathtub Typical estimated range: free–$300
If you already have a bathtub — or can find a used freestanding one — it's a ready-made plunge. Indoors you just fill and ice it; outdoors, a salvaged clawfoot tub makes a surprisingly nice garden plunge. Drainage and moving the tub are the main hassles.
Pros
- May cost nothing if you already have one
- Comfortable, familiar shape
- Looks good outdoors
Cons
- Heavy and awkward to move
- Needs a drainage plan
5. IBC tote, cut down
Food-grade IBC tote (cut to size) Typical estimated range: ~$80–$200
A common DIY route: buy a food-grade IBC tote (the ~275-gallon cube in a metal cage), cut the top down to seat height, and you have a rigid, deep plunge with a built-in frame. Use a genuinely food-grade tote and clean it thoroughly first — you don't know what a used one previously held.
Pros
- Deep and rigid with a built-in cage frame
- Cheap for the size
Cons
- Requires cutting and cleanup
- Only buy food-grade; verify prior contents
6. Chest-freezer conversion — cheap cold, with safety rules
Converted chest freezer DIY · advanced
The most-shared DIY build on the internet: a chest freezer, sealed inside, filled with water and run through a plug-in temperature controller so the water stays cold instead of freezing solid. Many people use one happily, and it is often the cheapest way to cold water without daily ice. It is also the one build here where water and mains electricity sit together, so it only makes sense if you follow the safety rules below without exception. We have not built or measured one ourselves.
Pros
- Cold water without buying ice
- Well insulated by design, with a lid
- Often cheaper than a dedicated chiller
Cons
- Not designed to hold water; voids the warranty
- Hand-sealed seams can leak or grow mould
- No filtration unless you add it
- Water and mains power in one appliance
Prefer a kit to sealing it yourself?
Conversion kits replace the hand-sealing with a liner and add the parts you would otherwise source one by one. BoxPlunge's Easy Kit, for example, lists a spa-grade liner, a Wi-Fi thermostat, a pump with filtration and an ozone generator, a GFCI, and a switch that cuts power to the connected equipment when the lid opens. BoxPlunge listed it at $199 on sale ($329 regular) when we checked on 18 October 2026; the freezer is not included, and its page suggests 10, 14 or 19 cu ft models. A kit does not change the rules below: BoxPlunge's own instructions also say to unplug the unit before entering.
See the BoxPlunge kit ↗Manufacturer link. PlungeWise is not in an affiliate programme with BoxPlunge and earns nothing from it. We have not tested the kit, and its page lists no UL or ETL certification.
Safety rules if you build one:
- Unplug it before you get in. Never plunge while the freezer, controller or any pump is plugged in.
- Plug it into a GFCI/RCD-protected outlet, directly, not through an extension cord, and press the outlet's test button regularly.
- Use an external temperature controller so the water cannot freeze into a solid block or form an ice sheet you might step onto.
- Seal the inside seams with a waterproof sealant rated for constant water contact, or use a fitted liner, then leak-test it full for a few days before using it.
- Keep the compressor, controller and plug dry and off the ground, under cover if outdoors.
- If you are unsure about any electrical step, have an electrician check the setup.
Clean and sanitise the water regularly and check the seams for mould. If cooling without ice is the goal and you would rather avoid the electrical risk, a stock tank with a standalone chiller (option 7) is the alternative.
Plan the parts & your budget →
7. Stock tank + add a chiller later
Trough now, chiller upgrade later Staged
A sensible middle path: start with a cheap stock tank and ice, prove you'll stick with the habit, then add a standalone chiller and a simple pump loop to reach a no-ice setup. Whether the total lands below a premium all-in-one depends on which chiller you buy — run your own numbers in our calculator rather than taking our word for it.
Pros
- Low starting cost, clear upgrade path
- You only spend on the chiller if the habit sticks
Cons
- Two-step project
- Chiller adds electrical setup
8. Insulated trough wrap
Any tub + insulation wrap Typical estimated range: +$20–$60
Not a tub itself, but the cheapest upgrade to any of the above: wrap the outside with foam board, a camping mat, or a pool cover, and add a floating lid. Adding insulation slows heat transfer into the water, so the ice should last longer and your ongoing ice spend should fall. We have not run a controlled ice-melt test, so we won't put a number on it — measuring exactly this is on our list for a future update.
Pros
- Cheap upgrade aimed at the biggest ongoing cost
- Works on almost any tub
Cons
- Adds bulk / a less sleek look
9. Kiddie pool — ultra-budget, short-term
Rigid kiddie / paddling pool Budget
The cheapest entry point there is. A rigid-sided kiddie pool holds enough water to submerge to the waist, or in a bigger one most of the body. It has no insulation layer and thin walls, so treat it as a way to find out whether you like cold water at all — not as a setup you keep. It also looks like exactly what it is.
Pros
- Cheapest possible way to try it
- Easy to store and empty
Cons
- No insulation layer; thin walls
- Shallow — hard to get your shoulders under
Which DIY option should you pick?
If you just want to try cold plunging this week, start with a kiddie pool, a tote, or an inflatable tub — all three are cheap enough that abandoning the habit costs you little. If you already know you'll keep going, a stock tank is the option we'd pick: it's built for permanent outdoor use and it leaves the door open to add a chiller later. That's an editorial judgement about the trade-offs, not the result of a test we ran. If you want cold water without daily ice and are comfortable with DIY electrics, the chest-freezer conversion in section 6 is the cheapest route, as long as you follow its safety rules.