The good news is that both lamps continue to work.
I put two lightbulbs in my Dacor flue and in a few hours the glass pane blew out one lightbulb. The good news is that both bulbs still work and provide sufficient light even after a few weeks.
Pros
ENERGY EFFICIENT: Halogen lamp reduces running costs by more than 30% and lasts longer than conventional incandescent lamps.