From the publisher
Convert your existing fireplace to
Jetmaster efficiency - wood or gas
Converting your existing fireplace to a Jetmaster
wood or gas fireplace dramatically increases efficiency,
eliminates smoking problems and transforms your smoky hole
in the wall to a beautiful centrepiece. As no flue is required (a
Jetmaster will operate beautifully off the existing chimney).
1. Measure the height, depth and width of your fireplace recess.