Love my cheap diesel heater. Don’t want to mount it permanently in the truck but did want to run it in the bed to heat the area and recirculate the air. My plan today and tomorrow is to build an exhaust that will run out from the passenger wheel hump and down using one of these
and having it go straight down then out. That way when I need / want the heater I can just set it on top of the exhaust port connecting it with some of these
https://www.amazon.com/gp/product/B09CKRR5XG/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1 and be good to go with my all in one unit. I will get some pics once it is installed… Still have to figure out a cap for the exhaust when not installed but that shouldn’t be hard