Draught reducing air Vent Cover DR21

• HETAS approved for throughput equivalent to 3400mm² of free air: suitable for all stoves up to 12kw
• Fits standard 4” (10cm) hole / can cover a 125mm hole or even a square clay air vent
• Suitable to cover bathroom and bedroom air bricks or louvred vents
• Ideal for under floor ventilation to prevent air blowing through and cooling a floor when used over an air brick.
• Simple and Safe: no moving parts, fitted in minutes

The DR21 anti-draft air vent is a new design which allows air necessary for combustion to be drawn into the room, but stops air being blown in. This ensures you can enjoy your stove in comfort.The DR21 frees your living room from annoying cold draughts being blown in, especially when the stove is not in use. It also eliminates insect-attracting light emissions, and can be used in place of underfloor air vents, or to replace rattling air vents in a bathroom. The DR21 anti-draft vent is as easy to fit as a standard louvred vent cover, costs about the same as a bag of wood, and pays for itself in reduced heating costs. If you already have a louvred vent installed, you can switch it out for a DR21 anti-draught air vent in just a few minutes. Fits standard 4” (10cm) hole – and can cover a 125mm hole or even a square clay air vent.Unit dimensions: 22cm x 22cm x 18cmUnit weight: 320gBox includes: top and bottom sections of air vent.You provide: screws, sealant, glue, ducting, vent cover for inside house.HETAS approved for throughput equivalent to 3400mm² of free air