Fixed generators are a great backup power source during emergency situations like blackouts. Generators for residential use tend to run on propane or natural gas - homeowners usually go for the natural gas option for convenience, but liquid propane can be stored at home.
Mark checked on the electrical wiring relating to the furnaces to insure that the furnaces are functioning efficiently with respect to one another.
Minor adjustments were made and both furnaces are functioning properly.
Kale suggested that the wiring should be examined by...