Fan Dilution (Single Unit) »
Introduction »
The Midtherm Fluevent System is a packaged unit alternative to a conventional flue dilution system. The system offers several advantages including lower noise levels, a reduction in the amount and size of the duct/flue in the boiler house, easier installation, reduced energy costs, easy maintenance and inspection. The unit offers an aesthetic solution both internally, and externally. All that can be seen on the outside wall is the inlet / discharge all weather louvre which can be powder coated to any RAL colour.
Description »
The Midtherm Fluevent Single Unit is of rigid construction and is manufactured from stainless steel, with framework or bracketry as required, and is pre-assembled and tested before delivery, ensuring efficient installation. Single Units are available for use on boilers ranging from 100kW up to 300kW output.
Specification »
Fully welded watertight systems can be used with condensing boilers. - the standard unit is not suitable for use on condensing boilers. This unit is suitable for wall mounting.
There are 2 options available:-
- Option 1 - Stainless steel 304 grade.
- Option 2 - Stainless steel 304 grade flanged and welded (for condensing boilers).
Quiet Operation »
The units are energy efficient because the amount of ductwork needed in the system is reduced, therefore friction and energy losses are lower, resulting in reduced noise levels compared to conventional systems.
Flue Gas Dilution »
In accordance with the Clean Air Act, combustion products and air from the inlet are mixed by the fan in the centre of the system until the required dilution of 1% CO² is achieved. The diluted flue gases are then exhausted through the outlet.
Installation »
Base of discharge outlet must be 2 metres above ground level.
Operation, Maintenance & Inspection »
The required safety interlock/fan-proving device is provided by a pressure differential switch, which must be connected in accordance with the wiring diagram. This should be checked for correct operation, as part of the annual boiler maintenance schedule.
The fan unit should also be inspected annually, and access to this is from the rear of the unit.
The fan motor has sealed bearings with lubrication for life, allowing quiet operation in any position and requiring no maintenance.
Download Fan Dilution System overview (62 kb)
Download Fluevent System [Single] Information spreadsheet (198 kb)
Please note: There are more information sheets to download in our Technical Downloads section »
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