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How Pilkington energiKare™ works

Pilkington energiKare™ reduces the amount of heat loss through windows and it also allows more heat (energy) from the sun in through the window - this effect is known as solar gain.

As solar gain is heat from the sun, it's 'free of charge' and available all year round.

Pilkington energiKare™ contains two special types of glass:-

  • Pilkington K Glass™, the UKs best selling low emissivity glass which stops heat escaping from homes.
  • Pilkington Optiwhite™ is a special 'extra-clear' type of glass. It increases the degree of solar heat gain and makes home feel warmer without the need to turn up heating.
  • Filling the double glazed unit with argon gas or using air filling with a new "warm edge spacer bar" stops further heat escaping from homes.