Flue slope. Question-I've seen this type of venting 3-4 times a month in older houses and never had anyone complain. The bottom metal flue is the 80% furnace with an uphill rise from it to the newly lined masonry chimney (stainless steel liner).
Monarch butterflies utilize different habitat in the warm months versus the cold months. In the spring, summer and early fall, they can be found wherever there are milkweeds. Monarchs lay their eggs on milkweeds and they're always searching for them in fields, meadows and parks.
Butterflies are found on every continent but Antarctica; the U. S. is home to about 700 different species. Their beauty and mystery have enchanted mankind for centuries and are woven into folklore and legend. In ancient Hopi, Mayan and Aztec cultures, the butterfly was one of the most frequently represented figures.