I have a 1980 Timberline 2 door stove insert (essentially a Fischer clone) that we purchased and ran for about 6 years and have not used since. Always burned good - provided plenty of heat even with no blower BUT was not very efficient and of course used a lot of wood. I moved into a newer home a few years ago and brought the stove with me. I want to install it in my current brick and stone fire place. I have heard of people upgrading these with stainless steel tube baffles and even a secondary burn setup. Can anyone direct me to a site or set of instructions to see what I can do. to make this at least a bit more efficient. Also, when the stove was installed originally the flue pipe was never run to the top of the chimney but only about 4 feet up from the stove. I know this is code now but I'm not sure if it was back in 1980 but the stove ran just fine with no issues. Thanks in advance for any help.