Closed Loop Hydronic Heating System Diagram

Friction of the water rubbing against the pipe as it flows through the system.

Closed loop hydronic heating system diagram.

The water from the boiler to this heat exchanger flows 24 hours a day in a closed loop making the heat exchanger continuously active i e. What s loop hot water heating. Designing high performance hydronic heating systems involves a knowledge of fluid mechanics electricity heat transfer and control theory. 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.

Nearly all closed loop hydronic heating and cooling systems are supposed to be filled with water or a mixture of water and antifreeze. It s the simplest method of heating with hot water. This one item receives the least amount of attention of all the components in the heating system. Designing high performance hydronic heating systems requires a good understanding of fluid mechanics electricity heat transfer and control theory not to mention a myriad of architectural issues.

The only intentional air in the system is contained in the expansion tank. Air elimination in a closed loop hydronic system just because a hydronic system appears to be completely filled often times there is more in the system than what we think. System flexibility maximum efficiency heating cooling domestic hot water heat storage fuel capability etc. As per the diagram plan all the pipes end in the utility core to be attached to the radiant floor system inside.

Water in a hydronic heating system should be free of air bubbles and dissolved gases such as oxygen and nitrogen. As you can see this allows the boiler to heat a tank of potable water which in turn can provide domestic hot water and floor heating in an open or closed configuration. I used zip ties to tie down the pex pipe. This diagram is typical of a closed loop hydronic heating system.

Heres some information to help you to better understand the operation of expansion tanks. What sort of radiators do most people use with loop hot water heating. No why it s a circulator not a pump. It s a closed loop system and the weight of the.

Selection and operation of the boiler s in relation to the other system components and in support of the design intent are important considerations. In a closed loop system what produces head loss. The water flows out of one radiator into the next. Perhaps one of the least understood functional areas of a closed loop hydronic heating system is the expansion tank.

1 psi of pressure drop 2 31 feet of head does height of the building influence head loss. Each zone consists of a single loop made up of the pipe and the radiators. It s a field where there s always something new to learn.