Aga stove register plate

Discussion in 'Builders' Talk' started by Ozwald Cobblepot, Dec 26, 2017.

  1. I am installing an Aga into an existing kitchen fireplace. The chimney is lined with a 5" flexible liner and I am currently building a false ceiling where the central portion will be cementboard. My question relates to the stove register plate. Firstly whether one is necessary given that the flu will pass through cement board and directly into the liner. Second, given that the Aga flu sits fairly tight against the back wall, could I buy a standard steel register plate and trim the back edge or does this defeat the object of there being a heat shield/border around the opening. Cheers
     
  2. fillyboy

    fillyboy Screwfix Select

    I've seen loads where they just go through cement board, but, I daresay there are regs covering this, perhaps one of our heating guys can answer that one.
     

  3. Good point....wrong forum!
     
  4. KIAB

    KIAB Super Member

    If no metal liner, then the register plate has to be metal, if you have a metal liner, then you can use a cement fibre board like Hardie board (12mm), or any suitable fire class rated board.
     
    Last edited: Dec 26, 2017
  5. KIAB

    KIAB Super Member

    Last edited: Dec 28, 2017

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