Hello!
I am going to line a room with 6mm plasterboard.
Behind an old direct-acting electric heater, I have a masonite board:
I assume this is some form of protection against the heat from the heater. Is this something I need to have, or can I manage with the plasterboard?
In about two years, I will probably replace the old direct-acting electric heater with an oil heater.
Thank you very much in advance.
Best regards,
Fredrik