The fire ban has been lifted in some areas, but residents are being warned to take care when lighting fires.
The ban had been lifted in Norsewood on Friday but a rubbish fire on Sunday got into vegetation and fire crews and appliances were called to Ngamoko Rd late that afternoon to put it out.
"The fire had jumped into trees and burned down a shed," Norsewood fire chief Terence Ahern said.
Neighbour Lyn McConchie said the first sign of trouble was when the flames shot upwards.
"The flames were about six feet to seven feet [1.80m-2.10m] high but they were rolling along a distance of some 25 feet [7.6m]," she said.
Appliances and crews from Norsewood and Dannevirke used portable water dams to supply water, and tankers ferried water.