Best Answer: the rate of diffusion is directly proportional to the concentration gradient. The greater the difference in concentration between two areas, the greater the rate of diffusion.
EPC-40: Electrical Plastic Conduit : Designed for normal duty application. EPC-80: Electrical Plastic Conduit : Designed for heavy duty application.
If you're planning on selling your home, you must provide an Energy Performance Certificate (EPC), free of charge to potential buyers. An EPC gives information on the energy efficiency of a property using A to G ratings, with A being the most energy efficient and G the least efficient.