Okay, TUG geniuses. Think about this one.
Our power went out during Sandy. Then it stayed out for most of two weeks. We could have stayed in the dark house, except that the temperature dropped to 37 degrees outside and god knows what inside the house.
A little background:
Our natural-gas hot water heater kept heating water throughout everything.
Our natural-gas furnace is old enough that it has a pilot light, but it's less than ten years old.
I was asking everybody I know why the hot water stays on but the furnace does not. No one really seems to understand this 100 percent. Lots of people told me that it's because the thermostat uses electrical controls. So I wanted to swap out our "smart" thermostat for a "dumb" all-mechanical thermostat.
Then other people told me that would not work because the furnace itself has electrical controls and safety valves that require electricity, and if you somehow sidestepped those electrical controls, the feed of gas would be uncontrolled and there would be a huge explosion.
Mostly everyone agreed that the only way to keep a gas furnace going in a power outage is by using a generator to provide the power. A couple of people said that if you have an OLD furnace, it might have all-mechanical controls and you would keep going. Ours is not old enough.
Why is that? Can anyone explain this? Are there such things as all-mechanical furnaces today?
Our power went out during Sandy. Then it stayed out for most of two weeks. We could have stayed in the dark house, except that the temperature dropped to 37 degrees outside and god knows what inside the house.
A little background:
Our natural-gas hot water heater kept heating water throughout everything.
Our natural-gas furnace is old enough that it has a pilot light, but it's less than ten years old.
I was asking everybody I know why the hot water stays on but the furnace does not. No one really seems to understand this 100 percent. Lots of people told me that it's because the thermostat uses electrical controls. So I wanted to swap out our "smart" thermostat for a "dumb" all-mechanical thermostat.
Then other people told me that would not work because the furnace itself has electrical controls and safety valves that require electricity, and if you somehow sidestepped those electrical controls, the feed of gas would be uncontrolled and there would be a huge explosion.
Mostly everyone agreed that the only way to keep a gas furnace going in a power outage is by using a generator to provide the power. A couple of people said that if you have an OLD furnace, it might have all-mechanical controls and you would keep going. Ours is not old enough.
Why is that? Can anyone explain this? Are there such things as all-mechanical furnaces today?