What Is an Insulated Toilet Tank?

Written by steven symes
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Insulated toilet tanks provide a way to combat sweating toilets, which commonly occur in areas with high heat and humidity. You may use a toilet with an insulated tank and not realise it, unless you know where to look for the insulation material. Insulating a toilet tank will help to avoid serious damage to not only the bathroom but the structure of the house.

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Sweating Toilets

Toilet tanks contain cold water, meaning the tank is also cold from contact with the water. In areas that have hot and humid weather, the tank sweats as the hot and humid air comes into contact with the cold toilet tank. The air condenses on the tank, creating the sweat. If a house has a dehumidifier or air conditioner, the tank does not sweat as much or not at all.

Water Damage Potential

As the water in the air condenses on the toilet's tank more and more, the water combines into larger droplets and begins running down the sides of the tank. The water droplets eventually drip off the toilet's tank and fall to the floor. This accumulating water leads to water damage on the bathroom floor as well as the subfloor and the room below. The constant moisture from the sweating tank may also lead to mould growth in the bathroom.

Insulation Kits

An insulation kit prevents sweating by covering the inside of the tank with foam or rubber. The insulation material keeps the sides of the tank from becoming as cold as before, since the tank no longer has contact with the cold water. A homeowner installs the kit by draining all of the water out of the tank. He then cuts pieces of foam or rubber to fit on the walls of the tank. An adhesive that comes with the kit holds the pieces onto the sides of the tank.

Anti-Sweat Valves

An alternative to tank insulators, anti-sweat valves introduce some hot water into the toilet's water supply. This hot water mixes with the cold water, raising the temperature enough to ideally avoid any future toilet sweat. Some anti-sweat valves come with an adjustment option, allowing a user to increase or decrease the amount of hot water going into the toilet's water supply. These valves also allow the user to shut off the valve during the cold times of the year.

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