Tag Archive: hot tub shell

  1. What You Need to Know About Hot Tub Shells

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    It’s often debated as to what is the most important part of your hot tub. While some say the filter, and others say the heater and pump, we tend to believe that it is your hot tub shell. Why? Because your hot tub shell is one of the only elements of your hot tub that you can’t replace. If a pump or a filter isn’t working properly, then you can call a technician and they’ll swap your equipment out for new pieces. However, when it comes to a hot tub shell, you have one shot at getting it right. If you choose a hot tub shell made of faulty materials, you can be in a lot of trouble a few years down the road. That’s why we’d like to help and give you what you need to know about hot tub shells to make a wise investment.

    What A Hot Tub Shell is Made From

    Most importantly, when it comes to hot tub shells, the material it’s made from is key. The material needs to be comfortable to touch and sit on while providing the insulation needed to keep your hot tub water warm and to use energy efficiently. As well, it must be strong enough to withstand years of use along with keeping it’s luxurious shine that helps keep your hot tub looking clean and fresh. Here are a few of the most used materials for hot tub shells:

    Composite Acrylics

    Gelcoat and OAS plastic are two common materials used for hot tub shells. Though they are durable materials, they are quite susceptible to fading and aging. While they may last particularly long, the fading of the shell can make your hot tub look years older than it really is.

    Vinyl Liner

    We advise against investing in any hot tub shell that’s constructed merely of vinyl liner. Though usually more affordable, the vinyl liners are easily damaged and often require repair in only a few short years. No more does the saying, “you get what you pay for,” ring true with hot tubs and their shells. While it may seem like a more affordable option at first, the maintenance and repairs of vinyl liners end up costing you more in the long run.

    Continuous Cast Acrylic (CCA)

    CCA is a extremely strong material that can withstand extreme temperature changes. Highly resistant to cracking  from extensive use and stress, CCA is the best choice for hot tub shells. It’s a non-porous material which makes it easy to clean, and with UV inhibitors that prevent color fading, the shell shines like new for years. ThermoSpas only uses CCA when manufacturing their hot tub shells.

    Along with CCA, ThermoSpas has also formulated the ThermoBonding process which is able to keep your shell in top condition for over 20 years. We’re so confident of it, we offer an industry leading 20 year warranty on our shells.

    More Than Just a Shell

    When looking for the right hot tub shell, you need to research more than just the shell. Underneath the shell, you must be ensured that you have proper insulation to keep the heat where it should be. Here are the additional steps ThermoSpas takes to guarantee a fabulous hot tub shell.

    Specialized Acrylic Forming: When creating a hot tub, there are several ways to piece together the entire shell. ThermoSpas uses state of the art machinery to create a uniform thickness that helps distribute heat efficiently.

    Fiberglass Matting: Along with your shell, you’ll want an underneath matting that can help prevent air bubbles from forming that lead to larger issues. a Fiberglass matting procedure is the best way to secure the underside of your hot tub, especially in the hard to reach areas of a tub.

    Vinyl Ester Resin Coat: the Resin coat ensures that the matting stays adhered to the acrylic without blasting of wearing over time.

    Fiberglass Resin Composite: Last, we use a ThermoBond resin to provide a structural sound and extremely strong last layer to the shell. This makes ThermoSpas shells stronger than industry standard.

    Invest in the Future

    When it comes to hot tub shells, do your research and purchase carefully. There’s no point in spending less money now which will require costly maintenance and repairs later. Invest in the future, and find a hot tub shell that will last for generations. If you have any more questions about hot tub shells or ThermoSpas wide selection of hot tubs, do not hesitate to contact us today, we’d be happy to help.

  2. How Often to Clean Your Hot Tub

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    Keeping your hot tub clean does not have to be a daunting task. If you are staying on top of your chemicals and have an efficient high-quality cover, cleaning your spa can be easier than cleaning your car!

    Below is a guideline on what needs to be cleaned and when, along with additional resources and how to’s on spa maintenance.


    Depending on how much you use your spa, filters should be cleaned in a filter cleaning solution every 1-3 weeks. You should never go more than one month without cleaning your filters.

    If you notice build-up and grime on your filters, and if the pleats look worn; it’s time to replace the them.

    A well maintained filter can last up to 18 months before needing to be replaced.

    Read: How to Clean Your Hot Tub Filters


    Give your shell a deep cleaning every time you drain your spa, which is about 3-4 times a year.

    In between cleanings, use an all purpose cleaner to wipe the shell surface just above the waterline. This will keep water lines away and make cleaning your shell easier. Be sure to use a hot tub cleaner that won’t interfere with your chemistry.

    Investing in a good cover and keeping your water clean are ways you can preserve your hot tub shell and make cleaning time a breeze.

    Read: How to Preserve the Beauty of Your Hot Tub Shell


    Your cover is one of the most important elements of your hot tub. Keeping it clean will prolong it’s life and prevent wear and tear that can cause heat loss.

    A good rule of thumb is to clean your cover each time you clean your filters, which works out to be about once a month.

    Using an enzyme, hot tub safe cleaner, remove debris and dirt from the underside of the cover as well as the vinyl exterior.

    Then apply a vinyl protectant to condition the cover and protect against UV rays and other outdoor elements.

    Read: Choosing and Caring For Your Hot Tub Cover


    ThermoSpas uses special ThermoBoard panelling that has the rich look of wood without all the work and maintenance.

    With ThermoBoard, there is no warping, fading, or sanding; and the panels are UV resistant.

    The only care that’s needed for your ThermoBoard panels is a quick hose off from time to time. They are virtually maintenance free!

    Read: Hot Tub Spa Cabinets – The Rich Look of Wood

    Have questions? Contact our customer care department at (800) 876-0158 Monday through Friday from 9am – 6pm and Saturday from 9am – 1pm for assistance with all your hot tub needs.

    If you’re local, swing by our store located at 155 East St. Wallingford CT 06492 for support or to buy chemicals and accessories.

    thermospas preferred customer

  3. Copper Beach Acrylic Shell Color Now Available

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    Looking to warm up your backyard, deck or patio? We’re excited to announce a new acrylic shell color that’s perfect for the summertime–Copper Beach.

    This warm, golden brown color shimmers with copper tones under the bubbling waters of a hot tub, giving an instant ‘beachy’ feel and transporting you to your own personal paradise any time of year.

    A neutral and versatile color, Copper Beach harmonizes beautifully with almost any home decor. It pairs exceptionally well our Burmese teak paneling, as you can see in the image below:

    acrylic hot tub shell

    You don’t have to worry about this color fading any time soon. At ThermoSpas we use only Continuous Cast Acrylic; a smooth and durable acrylic that requires little maintenance and is easier to clean.

    Our acrylics include special UV inhibitors that prevent the fading that you can expect from other hot tubs using lower quality, inexpensive composite acrylics.

    The Copper Beach acrylic currently available on all our our hot tub models. Request your free ThermoSpas DVD and brochure today, and enjoy this stunning hot tub in your very own backyard!

  4. How to Preserve the Beauty of Your Hot Tub Shell

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    Preserving the shiny, glossy finish of your hot tub shell is easy and simple to do. With just a few minutes of cleaning and the right materials, you can keep your spa looking as beautiful as the day you got it.

    Follow our suggestions below to preserve the color and shine of your hot tub shell for years to come.

    1. Invest in a good cover:

    The first step in preserving your hot tub shell is a good cover. A cover will prevent the shell color from fading and will keep dirt and other debris from getting into your hot tub water.

    It’s very important not to expose your hot tub shell to direct sunlight for extended periods of time, and to always keep the cover closed and locked when not in use.

    This not only protects your hot tub shell, but it also protects children and pets from getting into the water when they shouldn’t.

    2. Keep your water clean:

    The next step in preserving your hot tub shell is a regular chemical maintenance program. When your water is sanitized and properly balanced, contaminants that are regularly found in our water, such as iron and copper, are kept out.

    These heavy metals can cause your hot tub water to turn brown or green, and can stain the interior of your hot tub.

    If your hot tub water is any other color besides clear; read our hot tub water troubleshooting guide to fix it.

    3. Use the right products

    We recommend giving your hot tub shell a deep clean each time you drain your spa, which works out to be about 3-4 times a year.

    It’s important that you only use the correct materials to clean your hot tub shell since bleach and other abrasive household cleaners can change the chemistry of your hot tub water and scratch the shell’s surface.

    We recommend the following products to clean and maintain your hot tub shell:

    1. Use ThermoSpas’ All-Purpose Cleaner on a regular basis to clean the shell surface above the waterline when the spa is filled with water. Since this is a natural enzyme cleaner, it won’t affect your water chemistry. Use the same cleaner when the spa is drained to give it a deeper clean. Simply spray on and wipe the shell surface with a soft cloth or rag. Our All-Purpose Cleaner doubles as a household cleaner for outdoor furniture, pool tile, and more. It also fights mildew and mold without the bleaching.
    2. Next, bring back the gloss, hide scratches and prevent water lines by applying Thermo Gloss. This polish chemically bonds to the surface of the shell once applied; resulting in a high gloss, protective coating. Leave on for 10 minutes after cleaning with the All-Purpose Cleaner, and then wipe clean.
    3. To aide in the removal of harder to clean water lines and stains, we recommend using the Scum Mitt. One side of the latex mitten is an abrasive scrubbing mitt that’s safe for use on acrylic, vinyl, fiberglass or even your shower, boat or patio furniture! For even tougher jobs, we suggest the Mytee Mitt. It’s more abrasive than the Scum Mitt, and designed for tougher hot tub cleaning jobs like removing algae, rust, mildew and mold with less effort, in less time. It’s also machine washable.

    A few extra minutes of care is all it takes to keep your spa running in top shape and looking like new so you can spend more time doing what you love to do – relaxing in your clean and sparkling hot tub!