Ordered the Radflex and as always with Amazon it arrived quickly, I had seen the product demonstrated on one of the shopping channels so had a good idea of how it worked, but the p and p was lower with Amazon, so decided to go ahead and order it, also I read a number of reviews, in various places on the internet.
I have 8 radiators and used this on all of them, it took me about 30 minutes to do them all, that night was a chilly evening so thought I would put the central heating on to take the chill off the air.
Within 10 minutes I had to go and turn down the thermostats on the radiators and then I had to turn down the thermostat for the heating on the boiler, and was amazed at how much heat was being thrown back off the radiators into the room, and when I turned the heating off the house stayed warmer for longer.
The product is very easy to fit, and is not visible at all when looking at the radiators.
Although the weather is not really cold yet, the fact that the heat reflected back was quickly noticeable, when the weather does get colder, the thermostats will not have to be turned up as high as they would be without Radflek fitted.
Please do not think this is a fancy tinfoil, the product is very different a real space age design and is actually a thick membrane, and very strong as well, and will last for many years.
I am very happy to give this product 5 stars, any product that can save money with rising energy bills, and lessen greenhouse gasses is really worth using.