I recently bought a Chiptec B-2 chip burner attachment. I want to put it in my cellar to heat my house. I tried to contact Chiptec in the Burlington area for a week. I finally got a call back from there guy. He said he wanted absolutely nothing to do with there product that was built over 20 years ago. He wouldnt tell me one thing about it. Basically they have no customer support and I would recommend not buying anything from them.