Back on topic of heaters and smoke detectors. Which type of smoke detector should you have??? There are two types -
Ionization, which is generally more responsive to flaming fires - and
Photoelectric smoke detection is generally more responsive to fires that begin with a long period of smoldering. I think best to have one of each!! And they do make combination Ionization/Photoelectric smoke detectors.
http://www.nfpa.org/safety-information/for-consumers/fire-and-safety-equipment/smoke-alarms/ionization-vs-photoelectric