This is the most popular type of trench heater with its simple design working on the principle of natural convection. It is the most economical version of trench heating, and as there are no moving parts, it is also the most durable. Although they have a relatively low heating capacity compared to the fan assisted models, they are perfect in situations were a warm air-curtain is required in front of large areas of glazing, whilst operating alongside underfloor heating or radiators to heat the space.

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Trench heaters are fully integrated into the floor, and are therefore perfect for any interior as their only visible element is the grille, which is available in a range of finishes to match the floor covering. Highly durable galvanised steel casings with a painted black interior are standard on our trench heaters, along with high quality copper/aluminium heat exchangers. 

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If you need a trench heater for a humid environment such as a bathroom or pool surround, our FRM range comes with a stainless steel casing and grille.

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