Lime scale is a hard, chalky mineral buildup caused by calcium and magnesium in hard water. It can form on water heater elements, boiler surfaces, HVAC humidifiers, and plumbing lines, reducing heat transfer, restricting flow, and increasing energy use.
/laɪm skeɪl/
Lime scale is a hard, chalky mineral buildup caused by calcium and magnesium in hard water. It can form on water heater elements, boiler surfaces, HVAC humidifiers, and plumbing lines, reducing heat transfer, restricting flow, and increasing energy use.
Why is lime scale a problem?
It insulates heat transfer surfaces, restricts flow, and increases energy use.
Source: The Cooling Company
Scale buildup reduces efficiency and shortens equipment life.
In a hard water area, a tank water heater builds scale on the elements, causing higher energy bills until the unit is flushed and descaled.
Use a water softener and schedule annual descaling to reduce scale on water heaters, boilers, and humidifiers.
“Use a water softener and schedule annual descaling to reduce scale on water heaters, boilers, and humidifiers.”
Lime scale is mostly calcium carbonate, the same mineral found in limestone.
How do I remove lime scale from a water heater?
Flushing and descaling with manufacturer-approved products can remove buildup.
Can lime scale affect HVAC equipment?
Yes. It can build up in boilers and humidifiers, reducing heat transfer.
Does a water softener prevent lime scale?
Yes. It reduces calcium and magnesium that cause scale.
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