Well the fireplace store has informed me I only have one option for an insert for my current zc fireplace and it's not worth installing due to the small size and lack of heat it puts out. The other option is to install a freestanding stove on the hearth. It's a raised hearth that is 23.5" deep and the fireplace opening is just shy of 30". The sales rep told me the only stove that will fit is a hearthstone homestead hearth mount stove due to the rear vent height being too tall on other stoves. I have an open floor plan with high ceilings and need as big of a stove as I could fit to heat around 3000 sq ft. If anyone has any suggestions on some other stoves to look at I would appreciate it. I have tried texting back the sales rep for the last few days to get other ideas and no response from them!