My thoughts on burning indoors; you have to get the wood indoors somehow. This means trekking the wood through the house into the basement or installing a wood shoot. One costs money the other costs a lot of time. I roll mine in a basement entrance on a pallet jack. If I couldn't, I'd put a chute in a window at negligible cost Or you leave the wood outside close and go outside and get it, but I think this defeats the point of having an indoor system. You will bring bugs, spider, fleas, ticks, and at some point you will bring in a few mice. Knock the wood before you chute it & that will take care of most of that. I don't even do that, most just gets wheeled in and parked & I never have issues. That's just part of bringing wood indoors. I am not 100% sure on this but at some point your indoor furnace will probably have a back draft and smoke will come in the house for a second. I like the smell of a fire burning but I like it when I want to smell it not when I am required to smell it. I do not have that issue at all. If I had an OWB in the yard I would get way more smoke in the house from the stack of it being so much lower, and wind at times blowing it to the house, and it making big smoke to start with. Burning indoors your going to suck all moisture out of the air so you will have to keep a humidifier running to keep the house from drying up. I can attribute many bloody noses to this cause when we first started burning we didn't have money for a humidifier. False. Low indoor humidity is from bad air sealing & infiltration of dry outside air. No humidifiers running here, at all. Indoor burning does not suck moisture out of the air. You will have to go through the house with a bucket of hot ashes at some point. False. With a gassifier & batch burning, there are no hot coals left when you go to light a fire. Only cold ash, and maybe a few cold pieces of charcoal. I keep an old foundation coating bucket beside my fire door. I remove a small scoop worth of ash from my bottom chamber every time I make a new fire. The bucket stays right there until I need the ash outside on my icey driveway. There's also the risk of a fire hazard. My insurance company doesn't consider it much of a risk. Plus I don't want my basement taken up with wood and a boiler room to contain the mess. I can understand not wanting to lose the space - but no extra measures or rooms are needed to contain the mess. All of my stuff is in one end of mine, not much mess at all.