I have a Harman Advance pellet stove I purchased 3 years ago. It’s a 2010 model that was in a showroom so it was practically new. It didn’t come with a user manual but the dealer went over everything with me. My problem is the dealer told me the feed rate should be set at 3 and not to adjust it. I recently looked at the manual online and it says it should be set on 4. The pellets I use are from the dealer but are fairly expensive. The stove runs perfect with these pellets but I have tried other pellets(5 different brands) and they burn terrible. I have friends that burn the different pellets that I’ve tried and they burn awesome for them in their P68. I’m wondering if it’s because the feed rate is set to low on my stove? The biggest issue with these other pellets is the amount of ash produced and low heat output. I would like the opportunity to burn different pellets in case the dealer runs out. Thanks for any help