Ecoflap is the new energy efficient inside letter plate draught cutter.Will help you save energy costs.
Won't blow open
Closes against 1700 pascals pressure - equiv. 114 mph wind speed. - Also stands up to a good door soaking at 100 pascals.
No springs, no components to break.
Retro fits.
Works with any existing outside letter plate
Made from sturdy strong ABS 757 to stop cold air being thermally conducted from outside throught the external letter plate.
Lightweight and described as "elegant". Could be termed a letter box "Tidy".
Adjusts to varying size of delivery - up to A4 and a YP directory. Accepts small packages.
Cuts down thermally conducted cold air from outside. Protects gas boiler thermostats from any leaking cold air from the letter box thus raising the temperature of the house unecessarily. (This costs money)
and...very simple to fit. Don't even have to be a DIY person. (Adhered or screwed)
http://www.energybook.co.uk/detail.asp?id=662494
