We are installing a gas stove (woodburner type but gas), the fireplace is ready, and an existing gas supply (from the previous 80's fire) is in situ. Question is, how do we go about installing the stove, do we need a builder to install it, then a gas safe plumber to connect it all up? Chimney was completely replaced in 2014, so I am assuming we won't need lining. Any help appreciated, thanks.