Translation:The heat is broken; I'm staying near the oven!
I do think that people in North America might refer to the heating system in an apartment building as "the heat". But I think they would say "the heat's not working" rather than it's broken.
I second that: - a waste of time for all native speakers of the English language to harp continually about the shortcomings of "Duol'english". We are confident that the French translations given are however, accurate and contemporary, are't we ? Thanks to moderators like Sitesurf and Zerroquil [?] on whom we can rely... MyThanks to these guys!