Exodraft Chimney Fans

exodraft chimney fans are electrical mechanical chimney draught systems, when for some Exodraft Chimney Fans 1reason natural draught just cannot be achieved, an exodraft chimney fan will give you an efficient and reliable solution. In general a mains power supply will be required to operate a system whereby it creates a live controller to run the chimney fan with an isolation point close by in all types of installations. The exodraft chimney fan can be mounted on a brick stack or metal flue where it will be necessary to use a flange plate and for aesthetic purposes a flange plate cover. (Find out more about Chimneys and Flues: A Guide to the Building Regulations)

There are three main types of use for exodraft chimney fans they are for ‘solid fuel’, ‘gas fireplaces including domestic boilers’ and ‘oil, gas, biomass boilers including multi-storey buildings with a common chimney’. All of which must go through the exodraft calculation process, survey forms in the different cases can be found on our website, they cover basic questions about the openings, internal/external surroundings, the appliance and various dimensions associated with the flue in order to comply with BS EN13384 and in BS EN15287 in which we ensure 20% of the exhaust gases and particles can be evacuated in the event of a power failure.

The exodraft fans all come as horizontally discharging which are usually dome shaped and as vertically discharging units usually boxed shaped these are recommended when obstructions are close by such as tall trees and/or buildings.

Exodraft Chimney Fans 2The exodraft solid fuel fans have two choices when it comes to controllers. The basic controller (EFC16) works like a dimmer switch with high speed immediately following the ‘click on’ to the right and continuing in the direction lowers the speed of the fan. The wireless controller (EW41) has a power pack base unit which is programmed to operate through z-band wireless signal, so with the sender unit operated by batteries aids in eliminating some of the wiring difficulties/time and for longer flue lengths repeaters are available.

A temperature sensor is available with the EW41 arrangement giving the end user a programmable function to temperature settings, with an audible signal that the temperature of the fire is going down so is it that it needs to be refuelled or let it run for a while longer with a further audible notification that the fire is soon to burn out and the fan will switch off.

The exodraft gas fans have a further option in a wall-mounted fan enabling termination from a horizontal flue run. There are two choices of controller, mostly commonly with the gas fan is the EFC21 which requires the addition of a solenoid in its arrangement to provide a fail safe operation should there be a loss of electrical power, this controller needs to be commissioned in conjunction with the spillage test as per our instructions. In some cases for the domestic/smaller gas boilers the EBC22 with sensor can be used when a constant pressure is Exodraft Chimney Fans 3required, the controller has the option of being programmed on site to achieve such variants.

The exodraft oil, gas, biomass boilers inclusive of multi-story buildings with a common chimney fans can be controlled by EBC20 and EBC22 (GASTEC certified) inclusive of a sensor probe to achieve the constant pressures required on such appliances on single or multiple boiler systems.

exodraft produce further a range of in line fans, high operating temperature fans and grease fans. exodraft chimney fans have been used in restaurants when the kitchen extraction interferes with the natural draught of chimneys and utilised in extraction in connection with solid fuel burning pizza ovens.

So hopefully this information will have given a good insight to ways of overcoming problematic natural chimney draught and get you to think of ‘exodraft’.

(Find out more about your chimney, fireplace and flue sizes here)

Find more information about Exodraft visit their website www.exodraft.co.uk

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