During a recent power outage, I flipped on the wall switch for my gas fireplace, knowing it wouldn't work. But it did. So I was able to keep the house warm for 18 hours until the power came back on. Being a curious type, I dug out the installation manual, and it shows a transformer and a battery pack. But I can't find a battery pack. I emailed Heatilator customer support, which replied "Your GNDC33 does not have a battery pack. All you have to do is turn on your wall switch." Not much help, and contradicts my manual. So I'm still curious. If there's no battery, what is the power source that opens the gas valve during a power outage? If there is a battery, it must be inside the wall between the switch and the fireplace casing. I'm wondering how long the battery works (it's over 8 years old now) and how to get at it. Does anyone have experience with this?
To err is human. To arrr is pirate.
Read your owner's manual.