At urbanboatworks, we steam lead paint from old windows. This process not only helps protect us from digesting dry lead paint- it also saves more old wibbly glass then any other method. Julien set to building a steam box ( easy for a boatbuilder who steam bends ribs) with items we found lying about. Inside the fireplace flue tile is a small metal canister from an old heater. He attached some pipes and built a wood box to fit the sash. It takes about two hours of steaming to get two sash complete.
It is most amazing how one hundred and fifty year old wood ( a few spliced pieces od wood, some drawing back together of joints) needs so little repair. A true testament to the craftsmen of yesteryear!