Hi All - Our installers want to install our chimney close to the house and then install a 90 to go around the soffit. Husband and I thought it wasn't a good idea (how do you clean a 90?) but installer said this was the way to go, vs. having the chimney come out far enough to miss the soffit in the first place. The soffit is too small to have the flue go through it. Anyone have any words of advice?