Low e double glazing is considerably more efficient than all previous types of sealed units offering quite high thermal values and working well for UK homes in general, if you had two double glazed units next to each other one a standard unit and the other a low e double glazing unit you would not see a difference.
Low E Double Glazing
How Low E Double Glazing Works
All that makes them different is how they are made and what they are made from this is not really what matters to the average customer who is usually just looking for the upgrade in performance and the savings in heating costs. These low e double glazing units have all those qualities.