Hi, thanks in advance for advice. I have a large house, high ceilings with a very good hearth, 8" x 22' insulated lined flue in chimney. I burn oak and other hardwoods. Since I cut, split stack haul, it's a challenge to always have it dry enough... I've been struggling to heat with the existing CDW 2462, catalytic, but it's not cutting it. I just observed a Fisher Grampa that threw a lot of heat, yet I see by several posts on hearth that these stoves are not as efficient as modern designs. Can I get some advice recommending stove models that might throw enough heat without requiring a second mortgage? Really appreciate this site and your advice.