Suburban Furnace High Elevation Problems
Have an older (20+ years) NT-30SP Suburban furnace that works fine at home elevation of 5,200 ft but won't light at campsite elevations of +8,000 ft. Does this year in and out. At campsite all work...
Forum Discussion
Could be oil trap in copper line to furnace blocking gas flow when colder (higher viscosity) at altitude. Just a possibility.
