• 06/02/2025
  •  10 minutes



indoors_pools



Humidity Control at Indoor Pools’ Environment

 

Heated pools are an excellent option for those who enjoy exercising or simply relaxing, but they require proper maintenance and sanitation. Without adequate humidity control, these areas—similar to gyms, hotels, and clubs—can become breeding grounds for microorganisms that pose risks to both customer health and the integrity of the establishment’s assets.


Many questions arise when designing a heated pool, and in most cases, humidity and temperature control aren’t factored into the initial project. Often, humidity control is only considered after completion, when issues like structural damage from high humidity levels begin to surface, increasing maintenance costs and negatively impacting customer satisfaction.




 

Why Should I Control the Relative Humidity in Heated Pool Environments?

 

Controlling relative humidity in heated pool environments is essential for several reasons. Heated pools are in a constant state of evaporation due to high temperatures. In an environment with 100% evaporation, humidity levels can reach up to 99%, similar to a rainy atmosphere. Therefore, for recreational or therapeutic uses, it’s crucial to maintain the relative humidity in a heated pool environment between 40% and 60%.


High humidity levels can lead to a host of problems, from structural damage to health risks. Excess moisture encourages the growth of mold, mildew, and harmful microorganisms, which not only damage the pool area's infrastructure, furniture, and decor but also pose respiratory hazards for users.


Additionally, high humidity creates an uncomfortable, stuffy atmosphere, reducing the enjoyment and relaxation typically associated with pool use.



The Effects of Condensation in Heated Pool Environments

 

Condensation is one of the primary effects of excess humidity. It contributes to the deterioration of the entire space, causing dripping, glass stains, mold growth, and even serious incidents such as plaster ceiling collapses and other structural damage.


Beyond the ‘unsightly’ appearance, a lot of investment goes into creating an attractive, welcoming, and modern space. However, uncontrolled humidity forces managers to spend extra on maintenance to protect the location. Without proper humidity control, walls, ceilings, and glass will deteriorate, and structures may rust or even collapse.

 


Indoor heated pool room with visible water damage and mold growth on the walls Indoor pool area with condensation on the large glass window, likely caused by high humidity levels in the heated pool
 

 

 

 

 

 

 

Thermomatic Solution

 

Thermomatic has developed projects that integrate humidity control with temperature regulation. This solution provides control over both the temperature and the humidity of the air emitted from the dehumidifier. This hybrid solution uses the same energy to power both the temperature and humidity controls, saving energy at the end.


Instead of releasing high temperatures into an already warm environment, the Tetus solution featuring Thermomatic’s Refrigeration ensures a milder temperature, between 71.6°F and 73.4°F, in compliance with regulations for heated pools.


This approach guarantees a comfortable and healthy space for users and a comprehensive humidity and temperature control system that adds value by preventing extra maintenance costs and potential negative feedback from customers.


Upon request, any Tetus line equipment can receive an anti-rust treatment to reduce the rust caused by the presence of some water treatment materials, like chlorine, reducing maintenance costs as well.