Steven from Bill Howe Plumbing came to fix our wall furnace. He was very professional, experienced and friendly. He assessed the issue and realized he needed to get a less powerful replacement wall furnace then the one he had with him. He ran out for the right wall furnace. He then needed to replace the liner in the stack and cap it. He came back in and put the new wall furnace in. When he was finished he vacuumed and cleaned around the area he was working in. I would highly recommend using Steven from Bill Howe Plumbing again.