I have been thinking about replacing my current gas fireplace (Heatilator) for a long time now. Outside of aesthetics I get nothing out of it, and would like to have something that is able to heat my 2000 Sq Ft ranch house in Wisconsin. It doesn't need to be the only source of heat, but anything I can do to supplement the normal gas furnace would be appreciated. In looking at my options, I think a Zero Clearance Fireplace would be my only option based on the layout of the space and the chase up. I am going to attach a couple of pictures that shows what I mean by this. The entire chase is combustible materials. Additionally the depth of the space right now is only 19.5 inches. I cannot find anything that would fit into that size for a zero clearance. What I am thinking of doing is removing the gas fireplace, building out the depth another 5 inches using some sort of barn beams to frame the opening further out. Thus getting me to a depth of 24+ that would then allow for other options with a ZC. I am not sure if I would need to do anything to the chase as is also? It's framed out as you can see in the picture, but insulation and other combustibles exist. I would have to pull some of the stonework off the area right around the opening to remove the current Heatilator and then once the new one is in reinstall like stones. Any thoughts as to options with this type of setup? Am I on the right track with looking at ZC? The room the opening is in is about 20x20 with vaulted ceilings. It then opens up into my kitchen and dining room. I'd like something with good efficiency and have access to plenty of oak for wood burning. From the list of ZC for the 26% tax credit, it doesn't look like anything is out there outside of the Astria Montecito. Is anyone aware of anything else available or coming soon? Due to cost, I may just look for a ZC that doesn't qualify, but maybe has a rating in the low 70's. Im guessing I would also need to do some sort of hearth as well in the front, should I have any concern based on weight? The house was built in 2005, and just has normal TJI floor joists underneath. Any thoughts would be greatly appreciated.