A fire investigator is looking into what caused the fire, though it was not considered suspicious.
Emergency services also responded to a spate of crashes along State Highway 2 and SH5 on Thursday evening.
No-one was trapped or seriously injured when a car crashed on SH2, near Morere, about 5pm.
"It appears to have been quite minor," the FENZ spokesperson said.
Police were also called to a single-car crash on SH5, near Waipunga, and another near Tarawera, about 12.30am.
Neither of these involved serious injury, a police spokesperson said.
It follows a crash between a car and a truck near the intersection of SH5 and SH2 around midday on Thursday.
One person was transported to Hawke's Bay Hospital with serious injuries and the road was closed for several hours.