member deleted Posted May 26, 2004 Report Share Posted May 26, 2004 I came across a HW Heater yesterday that was 25+ yrs old. The pipes had heavy corrosion/oxidation. I recommended that it be replaced. The listing agent had a plumber come out and do an inspection. He determined that the HW Heater had a glass lining and it didn't need to be replaced. What is the life expectancy of a Glass Lined Hot Water Heater? Kevin Richardson Richardson Home Inspection, LLC Quote Link to comment Share on other sites More sharing options...
swarga Posted May 26, 2004 Report Share Posted May 26, 2004 45 seconds after it has been tipped over.[:-jester] Quote Link to comment Share on other sites More sharing options...
crusty Posted May 26, 2004 Report Share Posted May 26, 2004 They last until they leak. Quote Link to comment Share on other sites More sharing options...
kurt Posted May 26, 2004 Report Share Posted May 26, 2004 Anywhere from 8 to 30 years; there is no (apparent) standard lifespan. My own just failed after 10 years & 2 months. Of course the listing agents plumber said that it didn't need to be replaced; plumbers always say stuff like that. If you called him after it leaked, he would say that anyone could have seen it needed replacement. A 25 year old heater is @ the end of its lifespan; time for replacement. Quote Link to comment Share on other sites More sharing options...
hausdok Posted May 26, 2004 Report Share Posted May 26, 2004 Hi, Most of them are glass lined. There are 6 manufacturers producing more than 105 brands of water heater in the U.S. and a whole lot of 'em use glass lined tanks. So what? The constant heating/cooling over years causes the lining to spall and then the tank begins to rust. Kurt's right, the plumber will say whatever he believes he's expected to say by the folks paying him and then when it fails he'll say there was no visible evidence, so how could he possibly have predicted anything? I cite an expected 10 to 15 year service life. When they're beyond 15 years and not leaking, I tell people, "Pop is still with us, but he's in the nursing home with tubes in his arms under 24 hour observation. He could go anytime and there's no way to know when that will be." They always get it. ONE TEAM - ONE FIGHT!!! Mike Quote Link to comment Share on other sites More sharing options...
Brian G Posted May 26, 2004 Report Share Posted May 26, 2004 I typically recommend replacement around 15 - 20 years. I usually mention the likelyhood of scale and / or a sediment layer, and their affect on efficiency. Water heaters are relatively cheap compared to water damage and / or years of wasted energy. I lean harder on the gas units because there's so much more to go wrong when they get old (disaster potential). Brian G. Quote Link to comment Share on other sites More sharing options...
Jim Morrison Posted May 26, 2004 Report Share Posted May 26, 2004 Around here, gas fired water heaters typically fail after 5-10 years, and only very rarely last 10 years or more. Electric water heaters usually go no more than 15 years. Every once in a while I see a 40+ year old copper unit still in use, but they are usually spilling combustion products into the basement at alarming levels. When was the last time anyone had a water heater serviced? Quote Link to comment Share on other sites More sharing options...
crusty Posted May 26, 2004 Report Share Posted May 26, 2004 FYI Home Maintenance for Dummies has an excellent section on water heater maintenance. Of course 1 in 1000 will do it. Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted May 26, 2004 Report Share Posted May 26, 2004 I always service my water heaters when there's an annoying puddle in my basement. Quote Link to comment Share on other sites More sharing options...
Brian G Posted May 26, 2004 Report Share Posted May 26, 2004 Originally posted by Jim Morrison Around here, gas fired water heaters typically fail after 5-10 years, and only very rarely last 10 years or more. Electric water heaters usually go no more than 15 years. Jeez, I've seen a handful here in the 30 - 40 year range (and looking it, but still working ). What's the story up there? On a side note, I know where there's a package AC unit running right now, 1971 vintage. Brian G. Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted May 27, 2004 Report Share Posted May 27, 2004 Originally posted by Kevin A. Richardson I came across a HW Heater yesterday that was 25+ yrs old. The pipes had heavy corrosion/oxidation. I recommended that it be replaced. The listing agent had a plumber come out and do an inspection. He determined that the HW Heater had a glass lining and it didn't need to be replaced. What is the life expectancy of a Glass Lined Hot Water Heater? The life expectancy depends on the chemical makeup of the water, the temperature setting on the water heater and the stewardship of the tank both before and after it was installed. If you really want to know how long tanks in your area last, I suggest a trip to the dump. Read the dates on a hundred or so water heaters an you'll have your answer. I'll bet you a dollar that every last one of them is glass lined too. When most people hear "glass lined water heater" they imagine something akin to a glass thermos bottle. It's actually closer to a piece of graniteware. The "glass" is more like a very thin porcelain coating -- its thickness is best measured with a micrometer. The tanks that last the longest are made of monel or copper. I occasionally see those things still going strong from the late '40s. - Jim Katen, Oregon Quote Link to comment Share on other sites More sharing options...
Richard Moore Posted May 27, 2004 Report Share Posted May 27, 2004 The oldest I've seen so far was an electric "Glass Beauty"...the actual name...that I believe was 42 years old (barely legible sticker). And then my next door neighbor flooded his finished basement over the weekend with an 11 year old gas unit. He's still trying to get the carpets dry. In situations like basements where a drip pan can't be plumbed I've been recommending inexpensive ($12-$30)flood alarms with the sensor in the plugged drip pan. Download Attachment: floodalarm.jpg 17.33 KB[/img] Quote Link to comment Share on other sites More sharing options...
hausdok Posted May 27, 2004 Report Share Posted May 27, 2004 Hi, Oldest I've seen were both on the other side of the Sound on the Peninsula. They were both Hotpoint brand electric units from 1951. Big, ugly monsters with cast iron trimmings. OT - OF!!! M. Quote Link to comment Share on other sites More sharing options...
kurt Posted May 27, 2004 Report Share Posted May 27, 2004 Originally posted by Richard Moore, in part In situations like basements where a drip pan can't be plumbed I've been recommending inexpensive ($12-$30)flood alarms with the sensor in the plugged drip pan. Try using a marine bilge pump; they are made to sit in nasty areas & pump "skims" of shallow water out of bilges, kind of like drain pans. I like the Rule brand, as they have internal float switches, are small, & they don't break. A Rule pump in a 5 gallon bucket is the best damn condensate pump there is. Way, way, way better than the piece of crap plastic box types available @ the HVAC counter. Only problem is they need 12 volts; you either have to have a transformer (no big deal), or run them off a battery on a trickle charge. About $45 @ any marine supply. Quote Link to comment Share on other sites More sharing options...
crusty Posted May 30, 2004 Report Share Posted May 30, 2004 Actually I've found a wide range of quality. This brand is legendary. I regularly see this. 26 years old and going strong. They made a copper lined unit that I have seen going strong at 40+ years old. Download Attachment: 130_3096.JPG 35.26 KB Quote Link to comment Share on other sites More sharing options...
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