The Unical Trio is a standard three-pass, high efficiency steel boiler that has been matched with the Iwabo wood pellet burner range providing outputs of between 27kW and 183kW.

The versatility of the Trio allows it to be installed directly as a wood pellet boiler or as an oil or gas boiler that can be converted later to wood pellets.

Safe operation is of paramount importance. Protection against back-burning is provided by mechanical and non-mechanical means, initially by preventing the flow of pellets to the burner, failing that by use of an internal sprinkler system and finally by the polymer supply tube dissolving at a set temperature,

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