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.
Caterpillars are the larvae stage of butterflies and moths. People  who study butterflies and moths are called lepidopterists and the  study is called lepidoptery. It is a s â¦ ubset of entomology, the  study of insects. 3 people found this useful.