Be careful with that thing. It's listed on the website for 'outdoor'. In an enclosed area that bad boy could suck the oxygen right out the the air....and CO (carbon monoxide) is bad news!!!!!I ran it yesterday for the first time. My shop/garage was 72F in about 15 minutes. Outside temperature was 15F.
More reasons we chose the system of in-slab radiant hydronic heat with and a 95% AFUE boiler. All combustion air is taken from the exterior through a PVC pipe rather than being consumed from within the heated structure. No open flame, no interior fumes consumed by the heat source & no fans or blowers moving dust around. No temperature stratification of a cold floor and a hot ceiling. Safe, clean, efficient, quiet, ... OK I'm bragging now, but it is a cool system. Since I've gone from the field into consulting, I missed having a part in these sort of systems. Now, instead of just design them, I got to install my first one in almost four years. It felt good to sweat a primary/ secondary loop network together again. If you make sawdust, you really need a collection system for health and safety. They don't have to break the bank to be good.Not only do I build bee equipment and do general woodworking in my shop, I also have three antique vehicles in it, along with gas and oil. The problem with non-electric heat is the danger of fire or explosion.
Woodworking forums also warn of sawdust being combustible under the right conditions. So be aware... also have at least one good fire extinguisher, you never know when you'll need it. And don't ask me how I know....:doh: I'll only say it was a very small fire.