I have a super old WP2 and need some help/advice/assitance/owner manual please. I've cleaned it out uber good, did the leaf blower trick today, took out and oiled both fans, cleaned it out completely. I just can't generate a lot of heat. I'm not sure what the trick is, the damper may be a bit different. I don't know if I'm getting too much air, or not enough. I think getting the manual for this model would be a good starting point, if anyone has it, would you please share? Thank you.