i would like to know how to wire up my lp furnace blower to help push air in conjunction with the hotblast blowers. i have the hotblast ducting tied into the plenum on top of my lp furnace and its does a pretty good of distributing air but its not quite enough to push warm air into the kitchen and back sunroom on those really chilly days. i tried just moving the switch to blower only on my digital wall thermostat to accomplish this but that did nothing. its just a walmart digital thermostat with a two wire line going into my 90+ lp furnace. what i would really like to do is wire up the lp furnace to turn the blower on based on the lp furnace plenum temps but still have it work normal when i just the lp furnace is is doing the heating. any ideas? thanks