Okay I think I can answer the OP's question. YES... 'we' absolutely need a warm shop. It's 34degF and I decided not to finish a little honey do project because I started without proper dress and I'm too lazy to change and get back out there from the warm house. Maybe I can parlay this into another xmas present from my wifey? A nice big heater? I have a detached garage/shop that has sheet rocked walls and ceiling but no insulation. I need to insulate the rafters and if I get a xmas present... get a thermostat to heat to keep my tools somewhat comfortable too when I'm not there. The bonus would definitely be to have a remote!
Just ran across this thread and was reminded of the sticker shock I got when ordering the flue for our fireplace. It uses 16" ID double wall insulated stainless and had 28 feet to run. I really hope the post about a 10 year life is way off. I would have to consider switching to gas if we had to replace after only 10 years.
16" ID, that's got to be in the thousands$$$$$. At 21' I'm in it for around $750.00, plus and or at least 6 hours of aggravating pre-work.
Also, relative to the mention of 16" flue pipe. How big is that fireplace? When you can run wood stoves with 80K Btu capacity or more with 6" flue pipe, a 16" pipe would handle an industrial size burner.
Single wall inside the heated space may not be such a great idea. That's what my FIL has in his cabin and the flue cools the exhaust off so quickly that creosote condenses like crazy. He sometimes has to clean every couple of weeks, or if he doesn't, he gets chimney fires. Even so, he usually has at least a few chimney fires every season :-o
I do need a warm garage/shop. Currently using an old kerosene heater and a propane tank with the dual burner attachment on top. What kills me is the cost of kerosene at Home Depot and the refilling of 20b propane tanks. Really want to keep my shop dryer in the winter time but it costs a fortune the way I am doing it now.