I have a unique problem with the gas pilots in my house. They all seem to be going out. One day I found both pilots in my fireplaces out. Didn't think much of it. I then found the pilot on my hot water heater out. I turned it on and next day its out again...did that a few days then decided to change the thermocouple. Did that and still same thing happening. Then I called a plumber and he changed the gas valve and thermostat on the water heater. The same thing kept happening. I then remembered the pilots on the fireplace. I turned them both on and turned the water heater pilot on and within 30 minutes all are off again. The next morning I was heating tea on my gas stove and the burner went out.
I don't understand whats happening. I told the plumber what happened and he said I might have negative pressure in my house ( don't know what that means).
Does anyone have any ideas? Please I'm desperate.