. >> we're going to go around the house, thank you, this is glen dickey from marshal services. to be safe if there's an emergency, if the power goes out. let's start with what we needy to have >> a carbcarbon monoxide detect system, this one is a little different. it tests for explosive gases. >> you also -- we all know we should have fire detectors. a lot of people forget to have batteries and he just got batteries in his smoke detectors as well. >> battery is good for a backup even a hard, wired. >> you think every home she don't have a five is extinguish >> yes, have a, b, and c. >> one is for trash, paper, wood. one is for liquids and one is for electrical fires. get the biggest one you can handle but not too big that you can't handle. or it would be use les >> i would never think about my hot water heater. what do i need to know? >> excellent. the water heaters right here, this piece here, this shuts off your, the water to the water heater if there's a leak, the problem is there's others out there that just shut the water heater off, the water to it. this one shuts the pow