I've used an infrared paint heater but lately I've found the Wagner wallpaper
steamer works fine to break the bond between the wood.
I've followed John Leeke's advice on 38 lower/uppers, built 38 storms, and
another tip is that using 0000 steel wool with elbow grease will clean smears,
paint, water spots, etc. off old glass and make it excellent looking without
scratching.
Penetrol and turpentine mix is a good pretreatment soaked in and ragged off
prior to glazing, slow oil primer, and topcoats.
Sam Packard
Lincoln, NE