Hot Tubs In Bedrooms: Safe Or Not?

If you're thinking of installing a hot tub in your bedroom, there are several factors to consider. Firstly, you'll need to ensure that your floor is sturdy enough to support the weight of the hot tub, which can be up to 5,000 lbs when filled. You'll also need to think about ventilation to prevent moisture buildup and potential mould growth, as well as electrical and plumbing requirements. Additionally, check if you need a building permit and make sure you have enough space to move the hot tub into your bedroom, as they often come pre-assembled and can't be broken down into smaller sizes.

Weight capacity of the floor

The weight capacity of the floor is a crucial consideration when planning to install a hot tub indoors. Hot tubs are incredibly heavy, with a full hot tub weighing anywhere from 3,000 to 5,000 pounds or even more when filled with water and people. Therefore, it is essential to ensure that your bedroom floor can support this weight without causing any structural damage to your home.

To determine whether your bedroom floor can handle the weight of a hot tub, you should consult a structural engineer or a licensed contractor. They will assess the weight capacity of your floor and recommend any necessary modifications, such as adding support beams or reinforcing the floor joists. It is always safest to place the hot tub on a concrete slab, as garage floors are perfect for this purpose.

Building codes in most areas require upper floors to be built to support a minimum weight per square foot, typically ranging from 40-50 lbs to 100 lbs per square foot for balconies. Therefore, it is crucial to ensure that your bedroom floor meets these requirements before installing a hot tub.

In addition to weight-bearing capacity, you must also consider the impact of water dripping off your body as you exit the hot tub. Wooden and carpeted floors can rot or develop mould and mildew, while hard surfaces with tiles, concrete, or laminate can become slippery. To ensure safety and minimise damage, consider using a matte, non-slip tile or placing a bath mat by the tub.

If you are unsure about the weight capacity of your bedroom floor or the necessary modifications, it is always best to consult with a professional. They can provide expert advice and ensure that your indoor hot tub installation is safe and compliant with local building codes.

Ventilation and humidity

Placing a hot tub in your bedroom is possible, but there are several factors to consider to ensure safety and practicality. One of the most critical considerations is providing adequate ventilation to address the issue of humidity.

Hot tubs release steam through evaporation, and the bigger the difference between the air temperature and water temperature, the more evaporation will occur. This evaporation leads to increased humidity in the room, which, if not properly managed, can cause condensation and promote the growth of mould and mildew. Therefore, it is essential to install a ventilation system to regulate humidity levels.

A dedicated hot tub room should ideally maintain an air temperature of at least 26°C/79°F to limit evaporation and reduce humidity. Additionally, installing a window can provide natural light and ventilation, but a humidity-sensing exhaust fan is also recommended to actively regulate humidity levels. This fan should be sized appropriately for the room, with a CFM (cubic feet per minute) rating high enough to circulate all the air in the room eight times per hour.

In some cases, a mechanical air extraction system may be necessary to manage humidity effectively. Dehumidifiers can also be beneficial in reducing moisture levels. It is worth noting that local building codes may have specific ventilation requirements, so consulting with local authorities is essential before making any renovations.

To prevent mould and mildew growth on the walls, it is advisable to install moisture-proof drywall or waterproof existing drywall. Cement, glass, or water-resistant drywall, similar to those used in bathrooms or kitchens, are ideal wall coverings for a hot tub room.

By implementing these ventilation strategies and taking steps to protect the walls, you can effectively manage the humidity and create a safe and enjoyable environment for your indoor hot tub.

Electrical requirements

Before installing a hot tub in your bedroom, it is crucial to carefully consider the electrical requirements and consult with a licensed electrician to ensure compliance with local codes and safety standards. Here are the key points to keep in mind:

• Standard hot tubs typically require either 110V or 220V of electricity. It is essential to determine which option your home's electrical connection can support. 110V models are popular as they don't require special wiring, but if the hot tub is more than 10 feet away from the electrical connection, it will need its own hard-wired circuit.
• For a 220V model, consult an electrician to assess whether your house can power the hot tub. It will need to be hard-wired to your home's power supply.
• If you are uncomfortable working with electricity or are unsure about your electrical connections, it is best to call an electrician to handle the installation.
• Ensure that your hot tub is not plugged into an extension cord. It should be directly connected to the power supply as per the manufacturer's instructions.
• Check the electrical specifications of the hot tub model you select, as different models may have varying requirements.
• Consider the power requirements when choosing a location for your hot tub. Ensure the room can support the electrical needs of the hot tub.
• If your hot tub requires a dedicated circuit, which is often the case, you may need to install one. Consult with an electrician to determine if your home's electrical panel can accommodate the additional load.
• Depending on the hot tub's specifications, you may need a GFCI circuit breaker. The amperage and voltage requirements will depend on the hot tub's specific model.
• During the installation process, be mindful of the hot tub's proximity to the electrical connection. If it is located far from the power source, additional wiring or circuit installation may be necessary.
• If you opt for a plug-and-play hot tub that uses 110V, ensure there is an accessible outlet nearby that can handle the electrical load.
• For safety, it is recommended to have a licensed electrician inspect the electrical connections and ensure they meet the required standards and local codes.

Plumbing and drainage

Plumbing:

• Water Source: Ensure easy access to a water source to fill and refill your hot tub. Consider proximity to a hose or an indoor faucet to which you can connect a hose.
• Filling the Tub: When filling the hot tub, use a standard garden hose. There is no need for special filtered water.
• Draining the Tub: Hot tubs need to be drained every 3-6 months. Attach a hose to the drain plug and direct the water to an appropriate drain to avoid indoor flooding.
• Floor Drainage: Install floor drains around the hot tub to manage any splashing or overflow.
• Water-resistant Flooring: Protect your bedroom floor from water damage by using water-resistant flooring.

Electrical Requirements:

• Electrical Connection: Hot tubs require an electrical connection to heat up. Check your home's electrical connections and ensure they meet the specifications of the hot tub model.
• Voltage Requirements: Standard hot tubs typically require 110V or 220V of electricity. Consult with an electrician to determine if your home can support the required voltage.
• Hard-wired Circuit: If your hot tub is more than 10 feet away from the electrical connection, it will need its own hard-wired circuit.
• Dedicated Circuit and Breaker: Most hot tubs require a dedicated circuit and a specific breaker rating, typically 50A, but some larger tubs may require 60A.

Additional Considerations:

• Professional Help: If you're uncomfortable with electrical work, hire a licensed electrician to assist with the electrical connections and ensure they comply with local codes.
• Building Permits: Check local laws and zoning regulations to determine if you need a building permit for an indoor hot tub installation.
• Ventilation: Proper ventilation is crucial to manage the moisture and humidity generated by the hot tub. Install an exhaust fan or a humidity-sensing fan to regulate humidity levels and prevent mold and mildew growth.

Remember to consult with professionals and carefully plan the plumbing and electrical aspects of installing a hot tub in your bedroom to ensure a safe and enjoyable experience.

Installation and maintenance

Before installing a hot tub in your bedroom, there are several factors to consider, including the size and weight capacity of the room, ventilation, electrical and plumbing requirements, and drainage. Here is a detailed guide to help you with the installation and maintenance of your indoor hot tub:

• Size and Weight Capacity: Determine if your bedroom can accommodate the size of the hot tub you plan to install, leaving enough space for access and maintenance. Consult a structural engineer or licensed contractor to assess if your bedroom floor can support the weight of the hot tub, which can range from a few hundred to over a thousand pounds when filled with water and people.
• Ventilation: Adequate ventilation is crucial to prevent moisture buildup and potential mold growth. Install a humidity-sensing exhaust fan or a mechanical air extraction system to regulate humidity levels. Consider heating the bedroom to at least 26°C/79°F to minimize evaporation and reduce humidity.
• Electrical Requirements: Hot tubs typically require a dedicated circuit of 220V/240V and a 50A breaker. Consult an electrician to determine if your home's electrical system can support the hot tub and to ensure it meets local codes.
• Plumbing and Water Source: Plan how you will fill and drain the hot tub. Ensure easy access to a water source, such as a nearby garden hose or indoor faucet. Consider installing a pump if your bedroom doesn't have a drain to remove water efficiently.
• Foundation and Drainage: The foundation of your hot tub must be strong, level, and able to support the total weight of the filled hot tub. Concrete slabs, reinforced decks, or spa pads are suitable options. Install a floor drainage system to manage any splashing or overflow.
• Installation Process: Choose the right hot tub model considering its size, shape, weight, and power requirements. Plan the route to move the hot tub to your bedroom, ensuring it can fit through doorways and around corners. You may need to hire movers or professional installers to safely transport and set up the hot tub.
• Maintenance: Establish a regular maintenance routine, including shocking and sanitizing the water, cleaning the filter, and maintaining a healthy water balance. Change the water quarterly and test chemical levels regularly with a water testing kit.
• Safety: Ensure the room has proper lighting and anti-slip flooring to prevent accidents. Keep a cover on the hot tub when not in use to maintain water temperature and prevent unauthorized access by children or pets.

Frequently asked questions