• @AnUnusualRelic@lemmy.world
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    123 months ago

    You can make insulated glass doors fairly easily. Just sandwich a gas between layers of glass. Look at any modern window for an example.

    • @Trainguyrom@reddthat.com
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      23 months ago

      Still not as insulating as a thick door with the manufacturer’s choice of insulation material. Double/triple pane glass is far better than a single pane window but a window is still a window