Hydronic Radiant Floor Heating Diagram

The heat output from most hydronic emitters be they baseboard radiant floor circuits or air handlers doesn t vary in proportion to the flow rate passing through them.

Hydronic radiant floor heating diagram.

The second section gets down to the nitty gritty details of actual radiant floor installations. This is about installing hydronic radiant floor heating in a slab floor system. In this design which can also be used in residential systems each heat emitter is located within a separate branch circuit that connects to a common supply main and common return main. The first part contains a general overview of radiant heat and it s various applications.

The graph in fig. 2 shows this effect for a heat emitter having a design gt of 20 f. Typically 10 of design flow rate yields about 50 of design heat output. The system works via pex pipe a small pump a water heater and a thermostat.

While it was done as a new house was being built in my last house i poured a concrete floor on top of a wood framed floor system and could have put radiant heat in that as well. All the necessary components of a well engineered and efficient hydronic radiant floor system are explained in a straight forward and non technical manner.