ANSWERED: How Does a Hydronic Heating Radiator Panel System Work

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In this video i'm going to demonstrate how a hydronic heating radiator panel system works.

A centrally located thermostat which displays the date, time and current temperature is the brains behind the system. For demonstration purposes if i increase the temperature above the current temperature the thermostat is going to call for heat to the hydronic heating system, indicated by the flame icon.

In this case the Immergas internal hydronic heating gas boiler is going to turn on much like an instantaneous hot water system. By burning gas it transfers heat energy into the ware. With panel heating the boiler is set to heat up the water to raise the water temperature to 70C. The boiler has an internal pump which circulates the hot water through the flow and return pipes.

The flow and return pipes run from and to the boiler, generally down the centre of the home. Each panel then branches off of the flow and return pipes.

As you can see the flow and return pipes are much thicker that the branch pipes.

As the water temperature heats up inside the radiator panels, the heat energy is exchanged from the water into the steel panels then radiates into the room.

Panels such as our standard range that have convection fins increase the efficiency of the heat energy conversion by creating convection.

Where cool air is drawn up through the fins heating it in the process.

When sizing a panel for a room we need to take into consideration the kW's required to heat the space, the wall space available, general aesthetics and sometimes stock availability.

From the dimensions of the room in this example we've calculated that bedroom 4 needs 1.656kWs. With the known kW requirement we can now consult our sizing table. As you can see there are a very large number of sizes that meet this kW rating.

At the top of each table you can see that there isa Type number.

A type 11 means 1 panel and 1 fin, 22 two of each and so on.

As you can see from the sizing sheet the same dimensions with different panel type give a large difference in kW output.

The most common size used is a 22 at 600mm high. So from the sheet we can see that we would usually choose a 800mm wide unit.

Other considerations are to consider the placement of the panel - how much wall space do you have, is there a good spot under a window.

Each panel has a simple on off valve. So a spare room panel could be turned off for example.

1300 303 471

dPP Hydronic Heating
18 De Havilland Road
Mordialloc VIC 3195
Australia

dPP Hydronic Heating
252-256 Sydney Road
Balgowlah NSW 2093
Australia

[maribelenciso]

Hello. I have a Intertherm softheath circulating hot water baseboard heating system on my porch. I had a power surge in my house and it is not working now. I had an electrician to look at it but he said he is not sure what is wrong with it. The brand name is intertheem. I don’t know if they are still making these models. The thermostat also is from Intertherm. I don’t know who can fix this for me or who should I contact. I will appreciate if you can help me. Thank you.

[robertpoynton]

How does this compare with the cost of a duckted heating to run?