9. Installation – using a horizontal register plate Horizontal register plates are often used to close off a large inglenook fireplace and may be cut to an irregular shape with tinsnips so that they fit perfectly into the stonework. XXBefore cutting the register plate you make an accurate template using stiff cardboard, then transfer the shape onto the metal. XXTo provide access for soot you cut a rectangular hole through the plate at any suitable location and cover it with a loose piece of heavy steel plate. XXAt best, this arrangement can be extremely messy and when wood or peat are being burned there is every prospect of condensation leaking back down through the plate. XXA far better technique is to install a flexible multifuel liner into the chimney and bring it down through the register plate to a short section of cast iron flue pipe (or vitreous fluepipe) that connects directly onto the stove.