Help comparing gas fireplace inserts to replace wood insert

[explosionphobic]

Hi, I’m new to this forum and the topic of propane insert for a fireplace. I’m replacing a Quad Fire wood stove insert with a propane gas insert in a heatilator fireplace. The two possible propane inserts are the Kozy Heat Chaska 29 MV or the Heat and Glo Escape 30 FB. The Kozy Hart is approximately $3,000 and the Heat and Glo is approximately $6,000.

I assumed these are comparable inserts. Would someone help me understand why such a price difference?

Thank you.