The upper metal flue is the water heater with an upward slope from it till right before the chimney-then it turns down to drop into the furnace flue and they become 1 flue entering the chimney.
Butterflies and moths are a group of insects called Lepidoptera. Like all insects, butterflies and moths have a head, thorax, abdomen, two antennae, and six legs.Additionally, moths and butterflies have four wings that are almost always covered by colored scales, and a coiled proboscis for drinking liquids such as flower nectar.ike all insects, butterflies and moths have a head, thorax, abdomen, two antennae, and six legs. Additionally, moths and butterflies have four wings that are almost always covered by colored scales, and a coiled proboscis for drinking liquids such as flower nectar.
Butterfly vs. Moth. Diffen âº Science âº Biology âº Zoology âº Animals âº Insects. Lepidoptera are classified into butterflies and moths. Taxonomists commonly argue over how to define the obvious differences between butterflies and moths.