dnw64
Veteran Member
You put your DC outside...in Michigan?!?! I'd hate to see the heating bills!
The NFPA (and therefore your insurance company) requires that DCs vent outside UNLESS you have an abort gate installed that will prevent a fire/explosion from returning into the building. An abort gate and the controls necessary to operate it will make the DC itself look cheap. We just spent over $60k upgrading ours (using the existing fan, cyclone and baghouse).