Closed Loop Radiant Floor Heating Systems

You can combine a closed radiant system with baseboard radiators.

Closed loop radiant floor heating systems. The heating fluid is self contained within the system and stays there unless removed for maintenance completely separate from the domestic hot water when radiant heat is called for by the thermostat a pump comes on and circulates the warm water throughout. Radiantec s closed system uses a high efficiency water heater or boiler to heat water or another heating fluid such as anti freeze. The system requires an expansion tank. The decision is strictly up to the consumer for which they prefer.

Many reasons have contributed to this evolution but the change was inevitable. 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 above procedure can be followed to eliminate all air from the system. Since most conventional boilers are designed to produce super hot water 185 degrees radiant floor company builds what we call split manifolds for multiple zone closed systems that use radiant floor heat in combination with standard baseboard radiators fan coils cast iron radiators or any other hydronic heating device that requires super hot temperatures.

Closed loop and open loop systems will remain at the foundation of any radiant heating system. 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. Pex tubing is flexible easy to install and provides all the characteristics one would need to create a successful open loop or closed loop.