In this Trade Radiators video, we’re taking a look at the assembly of cast iron radiators. When ordering radiators that are slightly bigger than usual, we need to deliver the radiator in two parts.
So why would it be in two parts?
If the radiator is over 1200mm in length it will overhang the palette that we at Trade Radiators deliver it on. If this is the case, you’ll need a joining tool to assemble the radiator. We let you know ahead of time if you’ll need such a tool.
Another reason why we send the radiator in two parts is because cast iron radiators are quite heavy and having them at a manageable size/weight makes it easier to transport and install at home. You can see as Jimmy gets ready to strip the radiator down that it takes a little bit of effort to move it along to floor and place on its side.
Looking inside the radiator, Jimmy shows us that for every joint in the radiator between sections you’ll find a small nipple that joins the sections together. Using a connecting tool, it’s quite easy to work on a specific section of the radiator without having to take the radiator apart piece by piece to fix it.
On close inspection, Jimmy shows us how the joint has two separate threads that go towards each other and meet in the middle. This special thread allows for the parts of the radiator we want to bring together to meet up exactly by turning everything in the same direction.
Jimmy guides us through the preparation of joining a radiator together, making sure that rubber gaskets sit halfway down to that middle point we want everything to meet at. With a simple twist (in the opposite direction you’re used to of course) you can get the radiator assembled to a point quite easily before reaching for the joining tool.
An important point to remember when using the tool: don’t tighten up one side straight away as it can pull the upper and lower joints out of line, making it impossible to fully tighten up the radiator. When the joints are fully tight, they don’t need to be too tight as the rubber seal will make a great waterproof seal in every section one is placed.
If you have a torque wrench, set if to 200 Newton meters and it will make a perfect seal almost every time.
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