Closed Loop Radiant Floor Heating Systems

Air vents remove any trapped air in the.

Closed loop radiant floor heating systems. The decision is strictly up to the consumer for which they prefer. This i have personally seen being done around my neck of the woods. You can combine a closed radiant system with baseboard radiators. As per the diagram plan all the pipes end in the utility core to be attached to the radiant floor system inside.

There are essentially two different methods using a hydronic radiant floor heating system an open loop or a closed loop process. Closed loop and open loop systems will remain at the foundation of any radiant heating system. 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. 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.

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. These are only a few basic systems. Many reasons have contributed to this evolution but the change was inevitable. Closed systems are familiar to code officials and contractors and they encounter little resistance.

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. More advanced systems include industrial process equipment medical applications dehumidification coils and units and other hydronic heating applications. I used zip ties to tie down the pex pipe. If you want to create an argument amongst radiant floor heat installers bring up the subject of open radiant heat systems.

Manifolds and control systems connected to in floor radiant heating. Alternately a utility transfer pump not a sump pump can be used to pump fluid into the system and evacuate the air we recommend a powerful utility pump like the wayne ec 50 or the wayne pc 4 or an equivalent pump like the utilitech 5 hp cast iron transfer pump all of which can generate up to 45 psi. The system requires an expansion tank. Pex tubing is flexible easy to install and provides all the characteristics one would need to create a successful open loop or closed loop.

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. The above procedure can be followed to eliminate all air from the system.