Hydronic Heating System
     Hydronic heating systems are gaining in popularity because they provide a high level of comfort. Because of their comfortable average temperature and the fact that there is little stratification, people are typically still comfortable at air temperatures several degrees cooler than otherwise. This offers many advantages and a great potential for energy savings.

     Hydronic Heating Systems use water (or water-based solutions) to move thermal energy from where it is produced to where it is needed. The water within the system is neither the source of the heat nor its destination - only its transportation system.

     Thermal energy is absorbed by the water at a heat source, conveyed by the water through the distribution piping, and finally released into a heated space by a heat emitter.

Radiant Heating System
     This system was developed and has been used for more than a century with different heat sources.

     It is commonly applied to residential areas for human heath, convenience and easy of application.

     Recommend diagram will be like this.

Hot Water Re-circulation System
     Hot water re-circulation systems have been the most desired residential and commercial application because of their convenience and utility saving aspect.

     This system needs an AquaStat to control the circulation pump unlike tank type water heaters.

     Please look at the plumbing diagram below. As an AquaStat use Honeywell^TM; or Gold line^TM; thermostat commonly used.