[DIY][Double-layer window][ECO][Energy saving][Insulation][Simple inner window]How to make an ECO simple double-layer inner window! ! There are lots of great things to do, such as saving about 31% on electricity bills, insulation, energy saving, and getting rid of the cold! ! DIY to stay comfortable in summer and winter

https://youtube.com/@kotobukinote?si=DFOyafDJqjnwCQXC Kotobuki Techo[Cutout]https://youtube.com/@diy-bq2en?si=4uLog_aQS05xPjlQ Kotobuki Channel DIY Classroom https://youtube.com/@user- uj6vm5ti5b?si=3j3gMUEBs9K64EcF Wasabi Channel[DIY][Double-layered windows][Simple inner windows][Energy saving][Insulation][ECO]How to make an ECO simple double-layered inner window! ! DIY to stay comfortable in summer and winter! ! Electricity bill also reduced by about 31%! ! There are many wonderful things such as energy saving, insulation, and cooling relief! ! Increase heating and cooling efficiency! ! ! ! #diy #diy beginner #shou channeldiy #shou channel diy classroom #kotobukitecho #wasabi channel #do-it-yourself carpenter #diy work advisor #carpenter #professional craftsman #100 yen diy #daiso #daiso #seria #seria #cando # cando #Storage #StorageDIY #Shelf #Rack #Remake Sheet #Love Rico #Kitchen DIY #Reform #Small Reform #Renovation #Interior #Furniture making #Furniture #Nitori #IKEA #Insulation #Eco #Eco double window #Energy saving #Cold Countermeasures #Condensation prevention #Inner window