Bests & Worsts Reviews from Amazon

After reading the negative reviews, I had to post- because this thing probably saved my life. To the people who say "if gas is leaking, you'll smell it", i can reply, "Not if you're asleep and/or across the house, you won't". And if you're asleep during a sudden gas event, you might not wake up. My old natural gas boiler failed at 2 am. on a 15-degrees-below-zero night. This Explosive Gas alarm woke me from across the house, and without me being able to smell gas in my bedroom yet.. and i'm very sensitive to that scent. The responding fire department told me that the boiler was on verge of exploding/catching house on fire. This was five or six years ago, and the alarm is just now needing replacement (it's doing its "end of life" beeps). I have not had the false alarms that people report, but it's installed in my closed-door utility room, where only a (new) closed-system boiler and water heater are within a few feet. No alarms from those, nor from ordinary cooking etc in the nearby kitchen, but it did detect when someone left the gas kitchen stove unlit at least once. So i'm guessing that placement, and environment, might possibly be key as far as false alarms- presumably, it can't be TOO close to kitchen stoves or chemical/gas-like smells (and if you've got chemicals strong enough to set off a gas alarm repeatedly, maybe you could reconsider what you choose to have in your environment). My only note is that many of these are rated for ten years of life, and this one lasted no more than 6, according to when Amazon says I bought it. However, since that averages out to less than $8 a year, and it probably saved my life; I'm not complaining:-). I won't be without a gas detector again. PS, Natural Gas rises, but LP/Propane gas sinks , so you need to be careful to pay close attention to instructions on where you mount it based on what type of appliances/gasses you have.