Closed Loop Radiant Floor Heating Systems

Pex tubing is flexible easy to install and provides all the characteristics one would need to create a successful open loop or closed loop.

Closed loop radiant floor heating systems.

As per the diagram plan all the pipes end in the utility core to be attached to the radiant floor system inside. This i have personally seen being done around my neck of the woods. The system requires an expansion tank. There are essentially two different methods using a hydronic radiant floor heating system an open loop or a closed loop process.

Manifolds and control systems connected to in floor radiant heating. These are only a few basic systems. If they decide that one system should be set up to run the homes radiant floor heating and potable services than an open loop system is required. The decision is strictly up to the consumer for which they prefer.

Air vents remove any trapped air in the. Many reasons have contributed to this evolution but the change was inevitable. Closed loop and open loop systems will remain at the foundation of any radiant heating system. Types of hydronic floor heating systems image credit.

An open radiant floor heat system is one in which the potable water that serves the drinking and bathing needs of the house is also used to heat the floors. Closed systems are familiar to code officials and contractors and they encounter little resistance. In an open loop process the water is pulled from a source such as well heated and pumped once through the system before being discarded. More advanced systems include industrial process equipment medical applications dehumidification coils and units and other hydronic heating applications.

Several decades ago pex replaced polybutylene pb in open loop and closed loop radiant heating installations and the landscape of geothermal heating systems changed forever. Each length of pex begins in the utility core makes its circuit around its designated zone and comes back so that it will circulate the water in a closed loop heat system. You can combine a closed radiant system with baseboard radiators. The above procedure can be followed to eliminate all air from the system.

If you want to create an argument amongst radiant floor heat installers bring up the subject of open radiant heat systems. I used zip ties to tie down the pex pipe.