Depending on conditions outside,i.e cold and windy,place the back of your hand(the back of ones hand is very sensative)close to the inside of your lock,you will feel the draught,By reducing draughts you will also reduce the amount of condensation in that area therefore creating an improved environment in which you live and breath.After installing your 3 in 1 lock cover you could SAVE an estimated £150-£400 and approximately 1Tonne of CO2 (depending on the position and number of external doors on your property and weather conditions) per year.According to a report kindly produced for me by Portsmouth University.
But what does 1 Tonne of CO2 look like?..Im going to describe it like this,”its like having a Balloon above your house 32 foot wide,”..yes 32 foot wide.
Installing the 3 in 1 lock cover will save you money and help you create your CO2 balloon.