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Feb 12th, 2024
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 Tankless Water Heaters
#6760863
05/11/17 11:50 AM
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Joined: Oct 2013
Posts: 715
upsslim
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Thinking about going tankless. Anyone know anything about them? Good or bad?
East Texas
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Re: Tankless Water Heaters
[Re: upsslim]
#6760913
05/11/17 12:45 PM
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Joined: Oct 2010
Posts: 2,869
topwater13
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This seems to come up every few months.
Gas or propane yes.....electric no.
Noritz, rinnai and navien are the only brands I would buy right now. Do not forget about special venting, condensate, possibly increasing your gas line, re-routing water, t&p....etc.
If you have an existing tank style gas unit, look in to the Noritz EZTR series.
Try a search on here.
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Re: Tankless Water Heaters
[Re: upsslim]
#6760966
05/11/17 01:28 PM
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Joined: Dec 2008
Posts: 1,208
chongo
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Curious why you wouldn't do an electric tankless unit? I've got two new 50 gal electric units and I've thought about it but haven't put any effort into researching it yet.
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Re: Tankless Water Heaters
[Re: upsslim]
#6761062
05/11/17 02:57 PM
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Joined: Oct 2013
Posts: 715
upsslim
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My house all electric. I haven't seen anything bad about electric ones.
East Texas
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Re: Tankless Water Heaters
[Re: upsslim]
#6761405
05/11/17 07:47 PM
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Joined: Sep 2004
Posts: 12,392
RedRanger
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The electrical ones aren't worth putting in house, really no cost savings.
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Re: Tankless Water Heaters
[Re: upsslim]
#6761450
05/11/17 08:19 PM
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Joined: Jul 2011
Posts: 672
glb1955
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Have a gas one in the house. It works well but takes awhile to get the hot water to you. Never have run out of hot water yet. If the place is large enough, and you can afford it, you might consider having 2 of them installed. Friend of mine did (on opposite sides of the house) and he gets hot water quicker. That is a good bit of money to spend for having to wait about 20 to 30 seconds for water to get warm.
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Re: Tankless Water Heaters
[Re: glb1955]
#6761460
05/11/17 08:25 PM
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Joined: Sep 2004
Posts: 12,392
RedRanger
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Have a gas one in the house. It works well but takes awhile to get the hot water to you. Never have run out of hot water yet. If the place is large enough, and you can afford it, you might consider having 2 of them installed. Friend of mine did (on opposite sides of the house) and he gets hot water quicker. That is a good bit of money to spend for having to wait about 20 to 30 seconds for water to get warm.
How about just buy a recirculation pump and put a water heater. They run $200 and work excellent and are easy for a average homeowner to install, I have my Water Heaters in the attic, and it a long run to my kitchen. I have instant hot water there. In the winter it could take over a minute to get warm, and in summer about 20 seconds.
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Re: Tankless Water Heaters
[Re: upsslim]
#6762034
05/12/17 11:54 AM
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Joined: Jul 2011
Posts: 672
glb1955
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You sound like you know what you are talking about but my tankless came with the house when we bought it. I was simply replying to the original post.
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Re: Tankless Water Heaters
[Re: glb1955]
#6762040
05/12/17 11:59 AM
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Joined: Oct 2010
Posts: 2,869
topwater13
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You sound like you know what you are talking about but my tankless came with the house when we bought it. I was simply replying to the original post.
The fact that it takes a while to get hot water to said fixture has nothing to do with heater.....
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Re: Tankless Water Heaters
[Re: chongo]
#6762046
05/12/17 12:02 PM
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Joined: Oct 2010
Posts: 2,869
topwater13
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Curious why you wouldn't do an electric tankless unit? I've got two new 50 gal electric units and I've thought about it but haven't put any effort into researching it yet. Usual BTU output on a gas tankless is between 150-200k. Convert this to the electricity needed to produce the same output and you start to lose real quick. Not to mention all of the upgrades to panels, breakers, wire size and in some cases, actual transformers at the street. If you are needing a small electric tankless to run ONE sink and shower, there are a few on the market better than others.
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Re: Tankless Water Heaters
[Re: topwater13]
#6762104
05/12/17 12:45 PM
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Joined: Sep 2004
Posts: 12,392
RedRanger
THF Celebrity
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Joined: Sep 2004
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Curious why you wouldn't do an electric tankless unit? I've got two new 50 gal electric units and I've thought about it but haven't put any effort into researching it yet. Usual BTU output on a gas tankless is between 150-200k. Convert this to the electricity needed to produce the same output and you start to lose real quick. Not to mention all of the upgrades to panels, breakers, wire size and in some cases, actual transformers at the street. If you are needing a small electric tankless to run ONE sink and shower, there are a few on the market better than others. 
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Re: Tankless Water Heaters
[Re: upsslim]
#6762382
05/12/17 04:38 PM
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Joined: Sep 2016
Posts: 265
TX0303
Bird Dog
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Bird Dog
Joined: Sep 2016
Posts: 265 |
Pay attention to the internal piping dimensions. I installed one once which has 1/2" inlet and outlets, not 3/4". The internal piping, where the coils were, was even small diameter than that. Really cut down on water flow and pressure on the hot side, but it was a cheap unit from Lowes.
I think all tankless heaters work best on faucets that have two separate hot and cold valves. Open the hot to keep the flow rate up and the unit on, then adjust temp with the cold faucet.
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Re: Tankless Water Heaters
[Re: upsslim]
#6769272
05/20/17 02:37 AM
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Joined: Sep 2007
Posts: 4,294
oldoak2000
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My house all electric. I haven't seen anything bad about electric ones. 80 gallon HEAT PUMP waterheater is the way to go - costs 1/3 to run, and Free air-conditioning for your garage (or whereever its located). 10 year warranty Unit cost is high (up front), but requires NO electrical or plumbing changes. A no-brainer if you know how to get 'a deal' on one. will pay for itself fairly quickly here in texas. tip- do NOT go with a 50gallon version - it's a bit cheaper, but it won't 'keep up' the way the 80gal does; read the feedback on them ....
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Re: Tankless Water Heaters
[Re: oldoak2000]
#6769392
05/20/17 12:10 PM
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Joined: Oct 2010
Posts: 2,869
topwater13
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My house all electric. I haven't seen anything bad about electric ones. 80 gallon HEAT PUMP waterheater is the way to go - costs 1/3 to run, and Free air-conditioning for your garage (or whereever its located). 10 year warranty Unit cost is high (up front), but requires NO electrical or plumbing changes. A no-brainer if you know how to get 'a deal' on one. will pay for itself fairly quickly here in texas. tip- do NOT go with a 50gallon version - it's a bit cheaper, but it won't 'keep up' the way the 80gal does; read the feedback on them .... If you go this way....look at the Bradford White Aerotherm.....you have a dealer in Sulphur Springs.
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