My husband and I recently bought out first home. It has a woodstove and we thought it was a great way to save on oil. It has been an interesting journey. Buying wood that we thpught was seasoned and turned out not to be..etc. we are learning my question is my stove clicms ALL the time. Even when nothing has burned it it for a few day's. It is driving me crazy! It stops briefly when u open the door. What is causing this?