Hi Hearth.com World, I am new to this but thought I would give it a try. I have a Regency E21 using Propane (no other choice). Recently I noticed that I am getting a whirring noise when the fan comes on. If I adjust the speed of the fan, the volume of the noise adjust with the fan speed. I would like to clean the area where the fan is to see if it is dust that has collected in the fan area. I haven't been able to find instructions that tell me how to go about doing this. Anyone out there able to help me with this? Thanks