2024 Thermostatic Shower Mixer Buying Guide

2024 Thermostatic Shwoer Buying Guide

There’s nothing better than a rejuvenating shower. Perfect for a relaxing soak after a long day or to wake you up in the early morning, these nifty devices are often the focal feature of our bathrooms thanks to their ease of use and mobility benefits. So, when choosing the perfect shower for your home, it cannot be very clear to navigate the many types of styles available. That’s why we’re here to make life a little easier by singing the praises of the thermostatic shower.

But what exactly is a thermostatic shower and how does it work? Here at Morado Shower, we’ve created a guide to help you understand everything about these innovative showers, from how they work to how to install them…

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What is a Thermostatic Shower?

A Thermostatic Shower Mixer is a shower control that helps users maintain a steady and pre-set water temperature. It features a thermostatic valve that automatically adjusts the balance between Hot and Cold water to achieve and sustain the desired temperature.

Morado Thermostatic Shower Mixer

What makes a Thermostatic Shower different from Mixer Showers?

A thermostatic shower maintains a constant water temperature by automatically adjusting the hot and cold water ratios, providing a consistent and safe shower experience. In contrast, mixer showers require manual adjustment of the hot and cold water valves to achieve the desired temperature, making them less precise and potentially leading to temperature fluctuations during use.

Thermostatic Shower VS Manual Shower

In addition to maintaining a consistent water temperature, thermostatic showers offer several benefits. They provide enhanced safety by preventing sudden scalding or freezing water bursts, making them particularly suitable for families with children or elderly individuals.

How is a Thermostatic Shower different from Electric Showers?

A thermostatic shower maintains a steady water temperature by automatically regulating the hot and cold water mix, ensuring a consistent and safe bathing experience. On the other hand, electric showers heat water on demand using an internal heating element, providing instant hot water independently of the household’s hot water system.

Thermostatic Shwoer Vs Electric Shower

While thermostatic showers offer precise temperature control, electric showers are convenient for their independence from a central hot water supply, making them suitable for households with varying hot water availability or preferences.

How does a thermostatic shower mixer work?

A thermostatic shower mixer operates by combining a Temperature-sensing Device with a Responsive Valve to control the water temperature. After setting your preferred temperature on the shower mixer, the Device, typically made of wax, senses the water temperature according to your setting.

If the water becomes too hot, the valve adds more cold water, and if it gets too cold, it adds more hot water. This process ensures that the water remains close to your preset temperature, providing a steady and pleasant shower experience without the need for constant adjustments.

Schematic diagram of the principle of thermostatic bathroom faucet
Key components found in every thermostatic shower include:

  • Thermostatic Valve: Controls the temperature by blending hot and cold water to maintain a consistent and pre-set temperature.
  • Thermostatic Cartridge: Regulates water flow and temperature, adjusting automatically to changes in input water conditions.
  • Temperature Control Handle: Allows users to set their preferred temperature, providing a user-friendly interface.
  • Anti-Scalding Feature: Prevents sudden temperature fluctuations, ensuring safety by shutting off the water flow in case of cold water supply failure.
  • Diverter Valve: Directs water flow between different outlets, such as the showerhead or hand shower.
  • Pressure-Balancing Feature: Maintains a constant water pressure, compensating for variations in hot and cold water pressures.
  • Check Valves: Prevents backflow of water, enhancing the reliability and efficiency of the thermostatic shower mixer.

How many different types of thermostatic showers?

Thermostatic shower mixers offer various valves, each with unique features.

  • Concealed Thermostatic Showers: The valve is hidden behind the wall for a sleek and minimalist look.

  • Exposed Thermostatic Showers: The valve is visible and mounted on the surface of the wall, offering a more traditional and easy-to-install option.

  • Bar Mixer Thermostatic Showers: Compact and straightforward design, with controls on a horizontal bar.

  • Sequential Thermostatic Showers: Operates by sequentially adjusting the flow of hot and cold water to achieve the desired temperature.

  • Digital Thermostatic Showers: Allows precise temperature control through a digital interface, often offering additional features like programmable settings and LED displays.

These valves are a great choice if you prefer a clean and uncluttered look in your bathroom. Depending on your preferences and the aesthetic you want for your bathroom, you can choose the thermostatic shower mixer with the valve type that suits you best.

Read More “A Guide to Different Types of Showers

What is The Advantage of Thermostatic Shower Mixer?

A thermostatic shower mixer is a device that helps regulate and maintain the water temperature in your shower. It has several advantages and is considered a valuable addition to a bathroom for the following reasons:

  • Consistent Temperature: Once you set the desired temperature, the mixer maintains it regardless of any fluctuations in the water supply, such as someone flushing a toilet or using water elsewhere in the house. This helps prevent sudden bursts of hot or cold water, enhancing comfort and safety.
  • Safety: Thermostatic shower mixers come with built-in temperature controls and anti-scald features. This is particularly important for households with children, elderly individuals, or people with limited mobility. The mixer prevents water from reaching dangerously high temperatures, reducing the risk of burns or scalds.
  • Convenience: With a thermostatic shower mixer, you can preset your preferred water temperature. This eliminates the need to manually adjust the hot and cold water every time you shower. The mixer ensures that the water temperature remains constant, providing a hassle-free and enjoyable shower experience.
  • Water Conservation: Thermostatic shower mixers often include features like flow control and water-saving technology, helping you save more than 40% of water consumption. By efficiently controlling the flow rate without compromising the shower experience, these mixers contribute to environmental sustainability and can result in lower water bills.

In summary, a thermostatic shower mixer brings valuable benefits like consistent temperature control, safety features, convenience, water conservation, and energy efficiency. While it might have a slightly higher upfront cost compared to traditional manual mixers, many users discover that the long-term water savings easily surpass the initial investment.

Step-by-Step to Install Thermostatic Shower Mixer

Install the Thermostatic Shower Mixer

I’ve briefly outlined the installation of a Thermostatic Bar Mixer Shower here. For a detailed, step-by-step guide and insights into potential mistakes, please check out my other blog post, “How to Fit a Thermostatic Bar Mixer Shower.In that post, I’ve thoroughly detailed the entire installation process and highlighted common mistakes to assist you.

Installation Steps:

  1. Shut off the Water Supply:
    • Turn off the water supply to the bath at the main water shut-off valve.
  2. Drain the Water:
    • Open the taps to drain any remaining water in the pipes.
  3. Prepare the Pipes:
    • Cut the existing hot and cold water pipes using a pipe cutter or hacksaw.
    • Use a pipe reamer or sandpaper to smooth the cut edges.
  4. Apply Plumber’s Tape:
    • Wrap the plumber’s tape (Teflon tape) around the threaded ends of the hot and cold water pipes. This helps create a watertight seal.
  5. Mount the Mixer:
    • Install the thermostatic bath mixer on the wall or deck according to the manufacturer’s instructions.
    • Use a spirit level to ensure it is level.
  6. Connect the Pipes:
    • Connect the hot and cold water pipes to the corresponding inlets on the thermostatic mixer.
    • Use an adjustable wrench to tighten the connections securely.
  7. Seal the Gaps:
    • Apply the plumber’s putty or silicone sealant around the base of the mixer to seal any gaps between the unit and the wall or deck.
  8. Secure the Mixer:
    • If necessary, use screws or brackets provided by the manufacturer to secure the mixer in place.
  9. Connect the Shower Outlet:
    • If your thermostatic bath mixer includes a shower outlet, connect it according to the instructions.
  10. Test the Installation:
    • Turn on the water supply and test the mixer by adjusting the temperature and flow.
    • Check for any leaks and tighten connections if needed.
  11. Fine-Tune Temperature Settings:
    • Follow the manufacturer’s instructions to fine-tune the temperature settings if necessary.
  12. Final Checks:
    • Ensure all connections are tight and secure.
    • Check for any leaks or drips.
    • Make sure the mixer operates smoothly and adjusts to the desired temperature.

Always refer to the specific instructions provided by the manufacturer of your thermostatic bath mixer for the most accurate and detailed guidance during installation. If you’re unsure or uncomfortable with any step, it’s advisable to seek the assistance of a professional plumber.

How to fix a leaking thermostatic Shower Mixer

Fixing a leaking thermostatic faucet may involve several steps, and the specific approach can vary depending on the type and model of the faucet. 

If you require a more comprehensive step-by-step guide, feel free to explore my other blog “How to Fix a Dripping Thermostatic Shower Mixer?” In that article, I elaborate on the fixing process for various types of thermostatic bath mixers, offering numerous helpful tips to ensure a smoother repair experience.Here’s a general guide that you can follow.

  1. Turn Off the Water Supply:

    • Locate and shut off hot and cold water valves.
  2. Remove Handles and Access Cartridge:

    • Use a screwdriver to remove the faucet handles and access the cartridge.
  3. Inspect and Replace Parts:

    • Check for damage, replace worn parts, and apply the plumber’s grease to new O-rings.
  4. Check Connections and Apply Tape:

    • Ensure tight connections and use plumber’s tape on threaded areas.
  5. Reassemble Faucet:

    • Securely put back handles without overtightening.
  6. Turn On the Water Supply:

    • Gradually open valves to restore the water supply and check for leaks.
  7. Test Temperature Control:

    • Confirm thermostatic faucet maintains the desired temperature. Adjust if needed per manufacturer instructions.

After following these steps, the thermostatic faucet continues to leak, or if you encounter difficulties during the process, it’s advisable to consult the manufacturer’s documentation or seek the assistance of a professional plumber.

How to Maintain Thermostatic Shower Mixer & Shower Head?

Scrub Away Deposits in Shower Head
When it comes to maintaining your thermostatic shower mixer, many people struggle with clogged showerheads, and I’ve detailed how to solve this problem using common household items in your home (completely chemical-free & 30-minute solution) in my “Guide For Cleaning And Descaling Your Shower Head”. Maintaining a thermostatic bathroom tap is crucial for ensuring its longevity and optimal performance. Here’s a general guide on how to effectively maintain your thermostatic bathroom shower mixer: Regular Cleaning:
  1. Exterior Cleaning:
    • Wipe down the tap regularly with a soft cloth or sponge to remove any soap scum, water spots, or other residues.
    • Use a mild soap solution or a bathroom cleaner for stubborn stains, following the manufacturer’s recommendations.
  2. Aerator Cleaning:
    • Remove the aerator from the tap, if applicable, and clean it. Sediments and debris can accumulate in the aerator, affecting water flow.
Preventing Limescale Buildup:
  1. Limescale Prevention:
    • If you live in an area with hard water, consider installing a water softener to minimize limescale buildup.
    • Periodically descale the tap by soaking it in a mixture of equal parts water and vinegar. This helps break down limescale deposits.
Temperature and Pressure Adjustment:
  1. Temperature Adjustment:
    • If you notice changes in water temperature, refer to the manufacturer’s instructions to adjust the thermostatic settings. Some taps have controls to fine-tune the temperature.
  2. Pressure Adjustment:
    • Check the water pressure regularly. If you experience pressure dropure, make sure the water supply valves are fully open and there are no blockages in the pipes.
    • Adjust the pressure according to the manufacturer’s guidelines.
Checking for Leaks:
  1. Inspect for Leaks:
    • Regularly check for any signs of leaks around the tap, handles, or connections.
    • If you notice leaks, tighten loose connections or replace damaged seals promptly.
By incorporating these maintenance practices into your routine, you can help ensure the smooth operation and longevity of your thermostatic bathroom tap. Always refer to the manufacturer’s guidelines for specific care instructions related to your tap model.


A Good thermostatic shower mixer offers precise temperature control, anti-scald protection, customizable flow options, durable materials, and a finish that complements your bathroom while maintaining long-term aesthetics. These features collectively contribute to a reliable and enjoyable showering experience.

Morado Shower not only offers chic designs but also prioritizes functionality. What makes Morado Shower special? Our mixers are crafted to save over 40% on water consumption, making them an eco-friendly choice. Worried about making the right choice? Don’t stress – enjoy a hassle-free 30-day returns policy, giving you the freedom to change your mind.

Need it fast? No worries! Benefit from our speedy 3-day local UK delivery – your dream shower mixer will be at your door in a flash. And guess what? Contact Morado today and upgrade your shower experience with Morado Shower – where style meets savings!

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