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Heat source

Our recommendation is always to have snow melting installed as a separate system, i.e. with a heat exchanger or separate heat source, because of the risk of freezing.

It is necessary to have a heat exchanger hen the fluid in the system contains an anti-freeze medium, such as ethylene glycol, and the heating system that is to provide the heat for ground heating does not have anti-freeze.

Ground heating system without a heat exchanger
A heat exchanger is not necessary when the main heating system that provides heat for snow melting has antifreeze at the same concentration needed for snow melting

A heat exchanger are also not necessary when a separate heat source is used for the ground heating system, e.g., a separate electric boiler.

If a heat exchanger is not installed,observe this:

  • If the snow melting system is connected to an existing heating system, the pipes must have an oxygen diffusion barrier and be adapted to handle the heating system's pressure and temperature.
  • When starting the melting system (autumn and winter), which is connected directly to the main heating system the heat source could be liquid with a very low temperature, which may damage the heat source.