Energy consumption of your heating system

The waters contain to a varying degree a certain percentage of limestone. Depending on the region, this rate will fluctuate to more than 40 ° (1 ° corresponds to 10 mg of limestone). Water is said to be “hard”. It is important to know the nature of the water to effectively protect household appliances from its fireplace.

Indeed, a high content of limestone is catastrophic for all that is plumbing and pipes for example. The tartar will clog the latter, it will deposit on the heating systems causing major alterations. It is necessary to consider reacting as soon as the limestone level is evaluated at more than 15 ° TH.

The mischief of limestone

A deposit of limestone in the pipes, radiators or the boiler, will lead to a strongly increased energy consumption of your heating system. One calculates in fact that 1 mm of inlaid limestone booste the consumption of 10-15%!

Therefore, in order to heat water, for example, it will take much more time, and therefore more energy. Limestone is effectively a very effective thermal insulation. It is therefore easy to imagine in what state a great cumulus can be found after a few years. It may have “grown” by nearly 20-30 kg extra, those of the limestone deposited there. A highly trained aircraft will also be much less efficient. Boiler or water heaters will wear out faster.

What solutions should be adopted?

They are of 3 types.

The water softener

The purpose of water softeners is to remove limestone from all installations. They are composed of two parts, one of mineral resins and the other of regenerating salts “cleaners”. The softener is the most practical and effective solution. They have disadvantages the complexity of their installation, their price … The mineral content of the water can also be modified with an addition in sodium. A problem then arises for people with salt-free diet when the water is very limestone.

The osmosis units

Reverse osmosis units are water purifiers. A membrane filters the water that passes through it, thus blocking the polluting elements. They are targeting a very specific use.

Anti-scale filters

These are all catalysis filters, electronic or magnetic. They require for their proper functioning that the water does not exceed 55 degrees and does not stagnate too much. They are convenient to install when there is no room to install a softener for example.


The harder the water, the more often it will be necessary to have a descaling of your heating appliances. It is also important to remember to keep the water temperature within 55 degrees. Beyond that, the limestone will form much faster. On the other hand, to prevent bacteria from developing in the heating water, this minimum of 55 ° must be respected.

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