Indeed, I've covered 13 since May. (I included the manhole explosion on First Avenue... though not the car that caught on fire on East Fourth Street in September.)
Thankfully, in each of these fires, there weren't any serious injuries... and as far as what has been reported, none of the fires have been deemed suspicious by authorities....
Jan. 4, East Sixth Street near Avenue A
[Photo by EV Grieve reader Jamie]
Jan. 4, Second Avenue at East Fourth Street

[Photo by Special Monkey]
Dec. 22, First Avenue near Third Street
Nov. 29, East 10th Street between First Avenue and Second Avenue

Nov. 14, NYU's Barney Building on East Ninth Street
Nov. 13, St. Mark's Place between Avenue A and First Avenue

Nov. 11, Ageloff Towers, Avenue A and East Fourth Street...

[Photo by Cluglife]
Oct. 26, First Avenue at East Ninth Street

[By EV Grieve reader Jason]
Oct. 24, Otto's Shrunken Head, East 14th Street

July 8, 240 East Houston at Avenue A
July 12, 628 Broadway between East Houston and Bleecker Street

[Photo via Twitpic]
June 8, Second Avenue near Seventh Street

[Via Fairfax Wright]
May 12, East 14th Street at Avenue A

[Photo via Sergey]