The Basic Control Cycle of a Gas Heating Appliance Is

question 18

Short Answer

The basic control cycle of a gas heating appliance is initiated when a switch, usually a ____________________, closes to call for heat.

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Definitions:

Ray-Finned Fish

Jawed fish with fins supported by thin rays derived from skin; member of most diverse lineage of fishes.

Placental Mammals

Mammals that nourish their unborn offspring through a placenta, allowing for longer gestational periods and more developed young at birth.

Monotremes

Egg-laying mammals, such as the platypus and echidna, characterized by their unique reproductive system.

Marsupials

Mammals that carry and nurture their young in a pouch.