Recent content by Tonyuguccioni

thanks but it is still escaping me i feel like i am just one step away from getting it... very frustrating but it i will prevail ! :P

The information I am given is : a door has two steel layers both are .47 mm thick, the door itself is 725 mm by 1800mm. The question asks, how thick of a layer of wood (oak) would have to be put in the door to limit the heat loss to 740kJ per hour? Temp inside is 18C and outside is -20C All...