In the past, sales of the DR21 AntiDraft Air Vent were mainly from people installing a wood-burning stove.  

Now most sales are from people wanting to improve the insulation of their homes to reduce heat loss!  Surprise surprise!!

The fact that our vent prevents a draft whilst allowing air to be drawn in when an appliance is operating is certainly its main asset, but the fact that it virtually stops cold air seeping into a room 24 hours a day is now of greater importance.  

No-one would leave a window open in mid winter;  why then would you consider leaving a 100mm hole in your wall unprotected?

Vents are installed in a house when you have any appliance like a stove installed, or have cavity wall insulation.  Modern houses have to have passive air vents installed.  I can promise you, having put over 750 vents in houses as a woodburning stove installer, that they are not put there for fun!  It is ESSENTIAL that they are NOT BLOCKED.  They are there for a reason.  A stove will not work efficiently without one, and you can get a build of carbon monoxide if you do not have one.

Most houses are now pretty well insulated.  Most people know all the common ways to prevent heat loss:, double glazing, roof insulation, floor insulation, cavity wall insulation, good exterior, and interior, doors.

But

Do you also know that an open chimney works as a suction pipe literally sucking the heat from you radiators up the chimney and out of the top;  you need to block an open chimney when not in use (google Chimney Sheep).  If you have a stove rather than an open fire just close all the vents on it when you are not using it.

But leaving a 100mm hole straight through a wall to the outside?  Madness!!!  If the hole is facing the wind it is a disaster, but even if no wind can ever hit it, cold air will seep in 24 hours a day.

You may as well burn £50 notes.

Changing a standard air vent to a DR21 AntiDraft Air Vent is a “no-skill” job that can take as little as 15 minutes. 

It has been independently tested by Bre, a government approved testing station.  It is approved by HETAS (the governing body of solid fuel appliances in the UK), and is designed and manufactured entirely in the UK. 

Watch it working using the BBD Dragon's Den props



Watch this to see how easy it is to fit:



Overview

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See what people have said:


first class item , does job , this is the 3rd ive bought over yearsAAAAAA++++++
DR21 AntiDraft Air Vent easy-to-fit. Reduces pollution, improves operation (#384383518452)

great item , i like these , have bought more beforeAAAAAA!!!!!!!+++++
DR21 AntiDraft Air Vent easy-to-fit. Reduces pollution, improves operation (#384383518452)


Wow!  It did just what you claimed and stopped the gale instantly


Jenny K, St Austel


Hi David,  Thanks so much.  I have to admit that I had my vent blocked with duct tape and the stove hardly worked and the glass was black as pitch.  Now the glass is clean and the stove gives out masses of heat.  I just didn't realise.  Thanks again


J McD Aberdeen


Hi 


I just can't believe it!  For years we have put up with an icy draught right across the sitting room, and it's gone.  Totally gone.  

Thanks so much


S.B. Davenport


Hi David,


Just fitted my DR21. It is a really windy day today and I have not hardly any draught whatsoever.

Brilliant bit of kit!


Regards


B.E.  Langford


Hello


I fitted the vent yesterday, it was as easy as you said.  It’s just amazing!  I’ve put up with the draught for years and years, and now it’s gone.  Totally gone.  It really is amazing!


Kind Regards


L.P. Rochdale