Use screws to attach the device’s flange into the sash. Working with more screws, attach an L-shaped bracket to attach the bottom window sash to the top window sash. This could stop the window from unintentionally opening. Ductless - Ductless units are wall-mounted, and ideal for buildings which do not https://air-conditioner-installat54196.fitnell.com/70328889/5-simple-techniques-for-air-conditioner-installation