My cousin has offered me his Vermont Castings cast iron wood stove (10 years old+/-). It is a small catalytic model. However, the catalytic unit needs replacement (expensive). I plan on only using the stove on an intermittant basis (2X/week) to help heat a workshop. Can the catalytic unit be removed or bypassed? Will the stove still burn wood ok without the catalytic unit? Any advice/information would be appreciated.