A simple step by step guide to converting a 500ltr chest freezer to an ice bath tub for cold plunge.
Welcome to our comprehensive guide on how to create or modify a chest freezer into an ice bath for your home. While we understand the appeal of a purpose-built ice bath tub equipped with advanced features like a temperature-controlled chiller unit, UV sanitation, and ozone filtration, we acknowledge that not everyone has the financial means for such luxuries.
Fortunately, with just a few straightforward procedures, you can effortlessly convert a regular household chest freezer into a fully operational cold plunge tub. This DIY project allows you to have complete control over the temperature, set timers, waterproof the freezer, and ensure maximum safety during your ice bathing sessions.
If you have been contemplating the idea of constructing your own ice bath due to the numerous benefits associated with cold water exposure, you have two options. You can either dip your toes into the water by starting with a more affordable inflatable ice bath, or you can dive right into the steps for converting your chest freezer.
When purchasing the appropriate chest freezer for an ice bath, it is essential to ensure that you select the right size to avoid discomfort. The Westinghouse 500L and the Haier 319L chest freezers are two excellent options for ice bath conversions that I have identified.
Key factors to consider when selecting a chest freezer for an ice bath conversion include:
- Capacity in Litres
- Functionality of the Chest Freezer Lid
- Price
Selecting the correct capacity for the chest freezer is crucial, as I have learned from personal experience of purchasing one that was too small. A chest freezer with a capacity of 300L or more is recommended for creating an ice bath, but it is important not to choose one that is too large, making it difficult to find a comfortable position for the cold plunge.
A chest freezer with a capacity between 320L and 500L is ideal. Keep in mind that even a 320L chest freezer may be too small if you are over 180cm tall, so opt for a slightly larger size if you are taller or prefer more space to stretch out. If unsure, refer to the product specifications for the overall dimensions of the chest freezer.
When selecting a chest freezer with the appropriate lid configuration, it is essential to ensure that the lid can stay open without needing to be held. While most chest freezers have lids that remain open, it is crucial to verify this feature. This is important because if the lid accidentally closes while you are in the ice bath, you must be able to open it from the inside. Therefore, opt for a chest freezer that does not have a self-locking mechanism on the lid.
In addition to lid configuration, budget is a key factor to consider when searching for the ideal chest freezer for an ice bath conversion. There are high-priced chest freezers available, with the size, brand, and chiller unit power influencing the cost. However, it is possible to find a suitable chest freezer for cold plunges priced under $1200 for members. The recommended chest freezer typically ranges from $600 to $1500, depending on the brand and size.
Step By Step Guide on How to Build a Chest Freezer Ice Bath.
The process of converting a chest freezer into an ice bath involves mainly connecting the purchased equipment and ensuring they are safe from water. It is important to note that modifying the chest freezer will void any associated warranty and may pose risks due to not using the product for its intended purpose. Please be cautious as mixing electricity with water can be dangerous and may result in health risks for which we are not liable.
- The first step involves sealing the edge seams.
As previously stated, a significant portion of the process of converting a chest freezer into an ice bath involves connecting the different components to the adapter and filling the ice bath. The most time-consuming aspect of transforming a chest freezer into an ice bath is ensuring that the edges or seams are properly sealed with a waterproof sealant.
Contrary to popular belief, a freezer is not entirely waterproof, and filling it with water without sealing the edges is a surefire way to ruin your chest freezer. By sealing the internal edges of the freezer, you are effectively preventing any water leakage that could potentially harm the electrical components, while also enhancing the safety of the conversion. The more effectively you can contain the water within the tub, the safer the ice bath will be.
Our recommended product for this task is JB Water Weld, although you can also achieve similar results using bathroom silicone. It is worth noting that if you opt for the JB Water Weld product, you may need approximately 30 tubes to seal the perimeter of the chest freezer, whereas you would only require about 2 tubes of silicone from Bunnings to achieve a similar outcome.
To seal the edges, mix the JB Water Weld and apply a strip along the internal joints of the chest freezer, ensuring to seal the drainage hole if the ice bath is equipped with one. If you are using silicone, we suggest applying a thick line of silicone along one edge, spraying it with soapy water, and then smoothing it out with a rubber silicone edging tool. For a detailed demonstration, we recommend consulting Youtube for the most effective technique, as this process can become messy quickly. Once you have successfully sealed one edge, proceed to the next until all edges of the chest freezer are properly sealed.
2. Install Digital Temperature Control.
It is likely that you will prefer to regulate the temperature of your ice bath, especially if you are new to cold plunges. It is not ideal to have a solid block of ice on the surface that you need to break in order to enter the bath. Many individuals wonder, “What should be the ideal temperature for an ice bath?”. It is recommended to gradually acclimate yourself to cold water exposure, starting at a temperature that is uncomfortable yet safe for you.
By installing a digital temperature control, you can easily set your desired temperature on the device. The sensor placed in the water will automatically turn off the ice bath once it reaches your chosen cold plunge temperature.
To set this up correctly, simply plug the power cord of the chest freezer directly into the digital temperature control unit and place the sensor in the water. This will function as a thermostat, regulating the ice bath chiller unit to maintain a suitable temperature for your needs.
1. Step 3 involves the establishment of water filtration systems.
One of the key methods to maintain the efficiency of your chest freezer ice bath is through effective water filtration. Installing a water filtration system in your chest freezer is a straightforward process that guarantees a consistently clean ice bath, always prepared for a cold plunge.
Even though it is recommended to clean your feet and rinse your body before entering the chest freezer ice bath, you will be surprised by the accumulation of debris, skin, and hair in the water. To address this issue, we utilize a water filter. The water filter not only helps in removing impurities but also ensures proper circulation of water in the ice bath, which aids in breaking the thermal layer of the skin and maximizing the benefits of exposure to cold water.
To incorporate a water filtration unit similar to the one we suggest, position the water filter in an area prone to debris accumulation, and extend the cable to a suitable location, connecting it to a digital temperature gauge for organization – zip ties can be useful for this purpose.
IMPORTANT: For utmost safety, remember to either switch off the filter or remove it from the ice bath while in use to prevent any risk of electrocution.
Step 4 – Ozone Sanitisation Device
In order to maintain the cleanliness and hygiene of your ice bath, it is essential to use some form of water sanitation. Failure to do so can lead to the formation of a slimy film on the surfaces of the ice bath, which will eventually progress into unwanted algae. One effective method of sanitation is using an ozone generator, which introduces a small amount of gas into the water, providing a strong sanitizing effect. However, it is important to note that using chemical or salts for sanitation can impact the performance of your water filter and alter the desired crispness of the ice bath. There are various ozone generators available, each designed to service different volumes of water. The recommended ozone generator should be sufficient to keep your chest freezer ice bath water clean and pure. If you notice the water becoming dirty, it is advisable to empty and refill it. Similar to the ice bath and water filter, the ozone generator can also be connected to a timer switch. We suggest running the ozone filter for a few hours each day, in addition to the 24-hour operation of the water filter (except when using the ice bath). To incorporate the ozone generator into your ice bath, simply set up the unit outside the chest freezer and run the tube into the water alongside the water filter cable, ensuring that the ozone is removed when you take out the filter.
Step 5 involves ensuring the Chest Freezer is properly leveled.
The first step involves positioning your chest freezer ice bath in a manner that maximizes the structural integrity of the base, as most chest freezers are not designed to support the weight of a human. Many chest freezers are equipped with wheels or adjustable corners. If your chest freezer has wheels, it is advisable to remove them in order to minimize the gap between the bottom of the freezer and the surface on which the ice bath is placed. Ideally, the base of the chest freezer should be in direct contact with the floor to prevent pressure marks from forming when entering or exiting the ice bath. If removing the wheels is not an option, an alternative approach is to place old tiles or timber blocks under the base of the chest freezer to ensure even support across the entire surface.