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. >> "today" contributor and host of the syndicated show "house smarts" lou manfredini is here to answer, comes from terry. my older hot water heater is making a loud gurgle and popping noises when i use hot water. is this dangerous? could the bottom fall out? how often should i replace the water heater? >> with water heaters, what is important, when it starts to make those sounds, depending on the age, it is probably a good idea to consider replacing it because the average life of a water heater in the u.s. is about ten years. the way you can know is there is a little guide here, a little stamp, that has the serial number. most of them have a manufacturer's date, this particular one is 2006. then you see that serial number that is to the left, that long geln 06. many don't have the manufacture date, but the last two numbers are the year it was built. this is '06. if it is snap, crackle and popping, better to get it fixed while it doesn't leak, because then it is tuesday morning and you have no hot water and you have to spend twice as much money to have a plumber come out and do it. >> a

. ♪ lou manfredini he's got a name that rimes with linguine ♪ >> all right. e going to have lou on. coming by. we want you to send your questions in, all the home repair questions. go to our page, which one? oh, yeah. >> klgandhoda.com. >> hit the connect button. >> no, that's the one. connect. >> hit connect. >> all right. do you want to write a book? we're going to take you inside the world of self publishing. i'm doing that right now. >> yes, you are. >> are you a helicopter parent or do you take a hands off approach? we'll meet some folks who take parenting literally to the extreme. plus our expert weighs in on what's right for you right after this. energy! energy, energy, energy. it's inside of all of us. even gary here. [applause] berocca has guarana and caffeine to support mental sharpness. oh yeah! early morning meeting? no problem. [applause] plus, berocca has b-vitamins to support physical energy. some assembly required? awww. cherished memory. [awwwwww] i'm bringing down the house! [applause. laughs] two things. one package. beroccaaaaaaaa! >> paren

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. >> "today" contributor and host of the syndicated show "house smarts" lou manfredini is here to answerably a good idea to consider replacing it because the average life of a water heater in the u.s. is about ten years. the way you can know is there is a little guide here, a little stamp, that has the serial number. most of them have a manufacturer's date, this particular one is 2006. then you see that serial number that is to the left, that long geln 06. many don't have the manufacture date, but the last two numbers are the year it was built. this is '06. if it is snap, crackle and popping, better to get it fixed while it doesn't leak, because then it is tuesday morning and you have no hot water and you have to spend twice as much money to have a plumber come out and do it. >> are they under warranty? >> most manufacturers have a warranty of about five years or so. but, remember, it is a manufacturer's warranty on the product, so they'll say, well, hoda, you had this thing for ten years, you spent a thousand dollars, we're going to prorate that over ten years, here is your 100 bucks. s