I have an older Stanley Waterford Errigal Wood Cooking stove. It's new to me and I'm just getting used to using it. I noticed today that after keeping a fire burning for about 2 days that there is quite a bit of creosote buildup under the round hotplate cleanouts on the right side. I'm burning mostly seasoned hardwood with a few wetter than normal pieces once and a while. I'm just wondering if this buildup is normal and if so how often do I need to clean it out. This type of stove is completely new to me so any help would be greatly appreciated. Thanks.