Heating can help prevent the growth of mould, but it is not always effective on its own. Mould thrives in moist and humid environments, so reducing excess moisture is typically the most effective way to prevent mould growth.
Heating can help to reduce moisture levels in the air by increasing evaporation and drying out surfaces. However, it may not be sufficient if there is a significant source of moisture, such as a leak or high humidity levels resulting in condensation.
In addition, if there is already mould present, simply heating the area will not be enough to eliminate it entirely. The spores can remain in the environment and continue to grow if the underlying moisture issue is not addressed.
It is therefore important to address the root cause of the mould growth and take steps to reduce damp in the affected area, such as fixing leaks, improving ventilation, or using dehumidifiers, in addition to heating the area.