I am hoping someone can help me. I have an Englander 25-PDV and I just can't seem to get good heat output anymore. The stove is about 3 years old. I have replaced all the gaskets, tried many different brands of pellets, and called the tech support at Englander. Putting it in a higher burn mode helped a little bit but the thermostat for my heating system is 18 feet away and I can't seem to get the temp up past 65. Anyone have any suggestions?