Can hardwood flooring be installed on underfloor heating?

Of course, you can, but only if the quality of your solid wood flooring is reliable. Now I use a solid wood geothermal floor, and you can check it on the Internet. Not all solid wood can be used for geothermal, and some of the poor quality seems to be not, easy to crack and deform or something.

1.Since the solid wood floor is non-conductor, it is recommended that the thickness of the floor should not exceed 15mm. If the floor thickness is more than 15mm, there may be a problem and you need to increase geothermal heat to generate more effective heat.

2.When coating hardwood floors with glue, avoid forming a non-thermally conductive layer (e.g., floor mats) between the hardwood floors and the geothermal system. This is the case with floating installations if only glue is applied to the male and female slots.

3.It is also important to choose a solid wood species, preferably oak flooring. Avoid beech, maple, locust wood.

4.Parquet flooring is more suitable for underfloor heating than hardwood flooring. Parquet flooring balances each other, so it is not easy to deform.

Hardwood flooring can shrink (expand) entirely, which can lead to gaps between floors. The width of the hardwood floor used for underfloor heating must not exceed 130 mm and the thickness must not exceed 14 mm.

5.It is very important to install conventional geothermal (not electrical), which refers to water heating with a maximum surface temperature of no more than 28°C. Sudden changes in temperature have a big impact on the floor, and we should make sure that the temperature increases gradually for 4 weeks.

Remember not to install hardwood floors on underfloor heating and cooling systems.

6.The geothermal system has been in operation for at least 4 weeks before the hardwood flooring is installed. The temperature of the underfloor heating is slowly increased to a minimum, ensuring that the relative humidity of the room is between 45-65%.

Too low a relative humidity can cause the floor to shrink, and too high can cause the floor to expand. Relative humidity can be measured with a hygrometer and must be measured before installing the floor.

7.Before laying the floor, be sure to check the moisture content of the floor. It generally takes several months (or at least 4 months, depending on the situation) for water vapor to be released from the ground.

We can measure the moisture content of the ground with a hygrometer and the installer can do the job. The maximum moisture content should not exceed 2%.

Not necessarily, depending on what solid wood you have. Some multi-layer solid wood or something doesn't seem to be okay.

There are now a lot of hardwood floors that are suitable for geothermal heating.

Yes, the general geothermal heat is under the floor tiles, and the floor tiles have good heat resistance.