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Question:

What would cause my Smoke Detectors to go off for 30 seconds?

We have hard wired smoke detectors with 9volt battery back up. The system was installed 2 years ago and I have had to change the back up battery on a couple of units. Last night the smoke detectors went off in the middle of the night for about 30 seconds. A check of the entire interior and exterior of the house showed no signs of smoke and i hope it was not due to Carbon Monoxide as it did just go off for 30 seconds and would hope that it would continue to go off until shut off and the monoxide levels drop. So I guess my very general question iswhat else can cause smoke detectors to go off for about 30 seconds?Thanks - Sean

Answer:

My dog. I have a little Pomeranian who I totally adore and I couldnt imagine leaving him in the house if it were on fire.
Replacing an electric water heater with a newer electric unit will not substantially change your electric bill. However, replacing an older gas unit with a new high efficiency gas unit should create a modest difference on your gas bill. Before exploring any blanket - read and follow the manufacturer's instructions. In most cases, the addition of a blanket will void the warranty. Here's Rheem's/Rudd's recommendations from their use and care manual Insulation blankets, available to the general public, for external use on electric water heaters are not necessary. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank heaters. This water heater meets or exceeds the National Appliance Energy Conservation Act standards with respect to insulation and standby loss requirements making an insulation blanket unnecessary. The manufacturer’s warranty does not cover any damage or defect caused by installation, attachment or use of any type of energy saving or other unapproved devices (other than those authorized by the manufacturer) into, onto or in conjunction with the water heater. The use of unauthorized energy saving devices may shorten the life of the water heater and may endanger life and property. In most cases, you would be better off insulating the UNINSULATED hot water pipes in your basement, than adding additional insulation to the ALREADY INSULATED tank. Good Luck!
Well, it is rumored that at WrestleMania 29, Big Show will ally with Randy Orton and Sheamus to face The Shield. I don't know if Big Show is transiting to become a face, but with his friendly-like mood from backstage could be the pure evidence that he is face. Let's see what happens on Smackdown!.

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