How To Heat An Under Shower Pan?

can you heat under shower pan

There are various methods for installing under-shower pan heating, with some people opting for electric heating and others choosing hydronic or radiant heating. While some people question the need for under-shower pan heating, as the warm water from the shower may already warm up the tiles, others find it advantageous as it helps to dry the shower floor quickly. Additionally, in larger showers, there may be areas that don't get wet, and heating can keep these areas warm. It is recommended to consult with professionals, such as electricians, plumbers, and tile experts, to determine the most suitable heating method for your specific needs and to ensure proper installation.

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Radiant heat installation under shower pans

Installing radiant heat under shower pans is possible, but it requires careful planning and consideration to ensure effectiveness and avoid potential issues. Here is a guide on radiant heat installation under shower pans:

Before installing a shower pan, it is essential to prepare the floor surface. This involves creating a slope towards the drain to ensure proper water runoff. Traditionally, this was achieved using materials like cedar shims and newspapers, but modern methods may vary. It is crucial to ensure that the floor is level and sturdy to support the weight of the shower pan and users.

When installing radiant heat, there are two common approaches: installing tubes above the membrane or underneath the shower pan. If you opt for tubes above the membrane, ensure they are securely attached and do not interfere with the pan's integrity. This method can be effective, especially if you intend to heat the entire room rather than just warming the floor.

On the other hand, installing tubes under the shower pan is also an option. This method requires careful planning to ensure sufficient space and avoid any damage to the tubes. One technique is to use a product like Quik Trak, which allows you to install the tubing below the pan without compromising its integrity. Another approach is to use a gypcrete pour to embed the tubes beneath the pan.

Additionally, consider using a dedicated heating cable specifically designed for shower areas. This cable should be installed over the curb in a routed section, secured with hot glue or a similar adhesive, and then covered with thin-set mortar. It is crucial to follow the manufacturer's instructions and guidelines for the heating cable to ensure safety and effectiveness.

When working with radiant heat and shower pans, it is essential to consult professionals and follow local codes and regulations. Proper installation techniques, such as using the right materials and ensuring adequate ventilation, can prevent issues like tile cracking and ensure the longevity of the shower pan and heating system.

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Heating cables in the shower area

Heating under a shower pan is possible and can be achieved through various methods. One popular method is to use a dedicated heating cable, such as the ones provided by Schluter or WarmlyYours. These cables are installed inside the shower area, following a specified pattern, and are secured with hot glue or similar adhesives. It is important to note that the cables should not be installed under or through the curb to prevent overheating and damage. Instead, they should be installed over the curb in a routed section, followed by a waterproofing membrane.

Another approach is to use a shower and bench mat, such as the WarmlyYours mat, which features a pre-made hole for the shower drain. This option eliminates the need for waterproofing and is suitable for standard shower sizes.

Additionally, some people consider installing tubes above the membrane and running them up the walls, or even under the pan if space allows. It is important to consult with professionals, such as plumbers and radiant technicians, to ensure proper installation and avoid issues like tile cracking or improper drainage.

Regardless of the chosen method, safety should be a top priority. Waterproofing is crucial to prevent water leakage, and following manufacturer instructions and seeking expert advice are essential to ensure a functional and safe heating system in the shower area.

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Electric heat in the shower

Electric showers are a great way to ensure you never run out of hot water, making them ideal for large households. They work by passing an electric current through a heating element, which has a moderate resistance, causing it to heat up. The cold water then flows past the heating element, collecting heat and exiting through the nozzle as hot water.

To ensure safety, the heating element is a completely sealed unit, so no electricity comes into contact with the water. The temperature of the water can be adjusted by turning a dial, which alters the amount of water that passes by the heating element. This means that the water exiting the showerhead will be cooler or hotter, depending on the setting.

If you have low water pressure, you may need to install a power shower, which uses an electric pump to increase water pressure. This will result in water leaving the nozzle with greater force and speed. However, it is important to note that power showers use 3-5 times more water and energy than ordinary showers, so they are not the most efficient option.

There are several electric showerheads on the market, such as the Ducha Corona Shower Head, which runs on 110-120V and costs 4000 W of power. It offers six different colours to match your bathroom and is easy to install and maintain. The LORENZETTI Electric Showerhead is another option, which runs on 120V and offers three temperature settings. The CORAL MAX 220 Volt Electric Instant Hot Water Shower Head is also a good choice, especially for small apartments or houses, as it works well with low water pressure.

In addition to electric showerheads, you can also install dedicated heating cables inside the shower area to provide electric heat. It is important to note that these cables cannot be installed under or through the curb as they may overheat and cause damage. Instead, they must be installed over the curb in a routed section, secured with hot glue or a similar adhesive, and then filled with thin-set mortar. A waterproofing membrane should also be installed to complete the process.

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Hydronic vs electric floor heating

Under-shower heating is possible, and there are two main types of heating systems: hydronic and electric. Both systems have their advantages and disadvantages, and the best option depends on your needs and budget.

Hydronic heating systems use heated water from a boiler or water heater to warm floors, walls, and ceilings. The water runs through loops of flexible plastic tubing called PEX, which is installed under the floor or in grooves on top of the floor and then covered. Hydronic heating is versatile and can be used with various flooring options, including hardwood, tile, marble, and carpet. It delivers more heat at a lower operating cost than electric systems, making it ideal for large floor areas or entire houses. However, it may be more complex and require more maintenance due to its use of water, pumps, and gas lines.

On the other hand, electric heating systems use electricity to generate heat. They are generally easier and cheaper to install than hydronic systems, making them a good choice for small spaces or rooms. However, they have higher operating costs and do not provide radiant heat, so they may feel less comfortable. Electric heating systems do not have the potential for leaks, which is an advantage over hydronic systems.

When deciding between hydronic and electric floor heating, consider your budget, the size of the area you want to heat, your preferred flooring type, and your energy costs. If you are looking for a whole-home heating solution and have the budget for installation, hydronic heating is a comfortable and efficient option. If you only need to heat a small area and want to keep costs low, electric heating may be a better choice.

Additionally, it is important to note that when installing under-shower heating, dedicated heating cables are recommended for both the shower area and the bathroom floor to ensure proper heating and prevent damage.

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Climate Panel or Quick Track for shower heating

Climate Panel and Quik Trak (also Quick Track) are two popular systems for shower heating. They both use radiant floor heating panels, but there are some key differences in their performance, installation, and cost.

Climate Panel and Quik Trak systems use smaller PEX tubing, which significantly reduces possible loop lengths. This results in more connections and complications in routing the pipe, as well as higher manifold, pump, and installation costs. The tubing and fittings for these systems must be purchased from specific distributors, which can be a limitation for some users.

In contrast, the Ecowarm RadiantBoard offers higher output and lower operating costs compared to Climate Panel and Quik Trak. It achieves this by placing the aluminium on the top of the board and using larger PEX pipe, which allows for longer loops and fewer connections. Ecowarm also offers more flexibility in terms of tubing and fitting sources, as users can choose from a range of quality ASTM F876-877 1/2” PEX options.

Another alternative to Climate Panel and Quik Trak is Thermalboard. Thermalboard's radiant floor heating panels have a faster response time and higher performance due to their dense composite board construction and aluminium covering, which evenly and quickly spreads heat from the hydronic tubing. However, the choice of 1/2” plywood in Thermalboard's design forces the use of smaller PEX tubing, similar to Climate Panel and Quik Trak, which can result in energy-inefficient high head pumping.

When installing Climate Panel or Quik Trak, users have reported using a combination of nails, screws, and staples. Some recommend using a pneumatic stapler with 1/4" crown staples that are 11/4" long, while others suggest staples with a 1" or 1/2" crown. For the Quik Trak system, the 7/16" Hitachi N5008AC HB can be used to install Thermofin/Joist Track with 5/8" leg staples. It's important to note that the type of staple used can impact the installation process and the overall strength of the design.

Frequently asked questions

Yes, it is possible to heat under a shower pan. There are various ways to do this, including using a dedicated heating cable, mats, or tubes installed above the membrane and running up the walls.

Heating under a shower pan can provide a warm floor when you get in and also make for a nice, dry shower floor soon after the shower. It can also help to warm the entire shower area, making it more comfortable.

Some people may consider it an unnecessary expense, as the warm water from the shower can also warm the floor. Additionally, there may be concerns about the effectiveness of the heating with the shower water temperature.

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