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Old 05-29-2011, 03:38 PM
 
Location: Dallas, Texas
114 posts, read 154,712 times
Reputation: 108

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My water heater tank is nearing its 12th year of service. My last one died after 8. Anyway, I'm leaning towards a tankless unit. Are there any recommendations for places to buy? Installers? My house is 2800 sq.ft. and two adults live there (no kids.) I'd like to get an energy star rated gas unit, if possible. I've seen Rheem and Bosch units around $1k. Anything I should know?
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Old 05-29-2011, 04:46 PM
 
828 posts, read 1,445,561 times
Reputation: 1029
Default Tankless water heaters

Don't you just hate it when them heaters don't tank you?


I was only kidding My complex uses TL heaters and I love it I can tke a LOOOOONG shower [sometimes me old bod needs the heat] Sorry I have no idea where they get em or anythin like that. I would ask Lowes or Home Depot if they don't have em maybe someone there will know who to talk to.
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Old 05-29-2011, 05:02 PM
 
29,965 posts, read 47,162,968 times
Reputation: 15875
run a search on this forum
there have been several threads bout the same thing in past couple of years
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Old 05-29-2011, 08:18 PM
 
Location: Grapevine, Texas
9,808 posts, read 20,436,829 times
Reputation: 7179
We switched from a tank water heater to tankless in 2009 and have never looked back. Gas bill went down about $20 a month immediately! Our insurance agent and I also like that there is no risk of a tank bursting or leaking, too.

You really need to have gas to do a tankless. The electric ones just are not as good as the gas ones.
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Old 05-30-2011, 12:40 AM
 
Location: So California
8,509 posts, read 8,841,117 times
Reputation: 4612
Rinnai is a top brand that custom homebuilders use. Ive also used Noritz and Rheem. Ive used them for 10 years, no problems.
Definitely go gas, the elec ones arent as efficient. Dont worry about Energy Star, these are wayyyyy beyond energy star.
Morrisson Supply and Fergusons sells them.
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Old 05-30-2011, 06:58 AM
 
Location: Lake Highlands (Dallas)
2,395 posts, read 7,743,276 times
Reputation: 1035
Gas is the only way to go - electric uses 100+ amps... so most likely, you'll need to increase your elec service.

From my experience, here's the challenge with tankless:

$1000 is just the tip of the iceberg. If you're getting one installed, expect it to be in the $3-5K range. The reason for this is that you can't use the old ductwork or the old gas line. New, stainless ductwork must be installed and most likely you have a 1/2" gas line that will need to be upgraded to 3/4 to 1", depending on how long the run is.

The only downside to a "regular" tankless is that they do take a few seconds to sense that water is flowing and to then turn on the burners and adjust them - so when you turn on hot water, it will take a few extra seconds to actually get hot water. Likewise, if you turn on something else that uses hot water, it takes a second or two to adjust the burners, to you will notice fluctuations in water temperature if someone washes their hands while you're in the shower, or the laundry or dishwasher kicks in.

After discussing this with a friend of mine that owns a plumbing shop, he's exclusively switched to only install Eternal brand tankless units. They call themselves a "hybrid" tankless. It heats water as it flows through, but it also has a 2-gallon tank to combat the "instant on" and "change in flow rate" issues. He has them installed in his place - and they are truly amazing. They cost a bit more - I think the big one is around $1600, but they are so efficient, you can use PVC for vent pipes, so that alone makes up for the price difference in the unit itself. We have a Bosch that was installed ~ 5 years ago now. I'm happy with it, but those two items are a little annoying - when the time comes to replace it (tankless units typically last 15-20 years), we will put in a hybrid unit for certain.

Hope this all helps!

Brian
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Old 05-30-2011, 10:20 PM
 
Location: Dallas, Texas
114 posts, read 154,712 times
Reputation: 108
Default Tankless water heaters

Thanks for the information. I found units at Sears, Lowes and The Home Depot. The Sears units didn't look like they were ready for prime time (and the local Sears in Valley View didn't have any.) TDP and Lowes each have units in the $1100 range. I found no $1000+ units. Do you know of any other reputable places that sell these? I don't mind going to the stores (I want a professional install). I just want more information than hype.

THANKS!
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Old 05-31-2011, 04:46 AM
 
Location: Grapevine, Texas
9,808 posts, read 20,436,829 times
Reputation: 7179
I bought mine from my plumber, who did the installation. It is a Noritz, and he said that is his preferred brand. Total with unit and installation was about $2500.
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