In the case of a fireplace in operation, the flue gas temperature can reach or exceed 800&#176;C (1,500&#176;F), creating a draft in excess of 50 Pa (0.2 in. of water) at the base of the fireplace chimney.
(the flue gas temperature; can reach; L:In the case of a fireplace in operation) (the flue gas temperature; exceed; 800&#176)
the flue gas temperature the flue gas temperature
can reach exceed
L:In the case of a fireplace in operation
800&#176