Last evening every single fire alarm in my hose statred going off.
However there was no fire. The wind had been blowing all day so there
may have been some power interruptions, don't know. I hadn't changed
the batteries in a long time but the they usually start chirping when
the battery is weak. The breaker was NOT thrown.

Now two other potentially realted things. I have really sealed the
house this fall to save energy.

Also, just recently, with the cold weather, we've begun using the gas
fireplace. However, it seems to turn itself off a lot. I have to press
the reset button to get it to turn on again.

My question: what caused the fire alarms to fire? I mention the other
things because they might be related....I don't know.

BTW, I've been in the house 10 years and have never had a problem.