Hydronic Heating – Components Of A System Your map to staying warm. An overview of the various components which take part in a hydronic heating system. Hydronic Heat Source Various heat sources exist which have the ability to power a hydronic heating system. In Slab Piping Different pipe materials can be used to run the stream of luxuriant heat around your home. Radiators Where that magic heat from the heat source finally radiates out into your room. Manifolds Traffic lights for water flow. Buffer Cylinders Mixing water and providing a bit of a battery for thermal mass. Connectivity New hydronic systems have Internet of Things level connectivity.