My Tankless Experiment

Discussion in 'Tankless Water Heater Forum' started by Master Plumber Mark, Mar 1, 2007.

  1. Raucina

    Raucina New Member

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    E B A Y
    If people want to advertise their products here, they will need to talk to me and pay for that advertising.
    I don't offer free advertising. [Terry wrote]
    __________________


    Over on the well and pump forum we have a guy that has relentlessly advertised his product for at least a year, and another that posts links to his sales site. I can tell you that more than a few people are bothered by it. Are those commercial sales persons exempt from that rule for some reason or do they pay for the privilige? They say that they do not. Are there different rules for each forum?

    I know its Terry's football and he can throw it where he wants, but I think we patrons of this media have a right to see the advertising on the side of the page and not in the content disguised as help.
     
  2. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    and this has what to do with me??

    did you post to the wrong thread??
     
  3. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

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    Wouldn't it be cheaper to use the tankless as a post-heater, rather than a pre-heater? As a pre-heater, the tankless will run whenever the flow demands it, even if the demand is only a few gallons. As a post-heater, it would only run when the tank-type heater's supply of hot water has been exhausted.
     
  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    The tankless I've looked at (and that's not many) use a flow switch to turn on...they don't necessarily care if it is hot water. If it is, they may modulate, but they still turn on. Then, you could get REALLY hot water, and could have steam pressure problems. I'd restrict it to the input side, if you were going to put them in series. Now, some of the more sophisticated ones are designed for that, but they have interconnected controls which wouldn't be available when connected to some other heater.
     
  5. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

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    Good point, Jim. Any idea where I could buy one of those flow sensors? It might be a good way to control the chlorinator in my water system.
     
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    No idea...never looked.
     
  7. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    week #9

    forgot to get around to posting my btu input for
    this week it was 6500 cu ft even.

    temp is now sitting at 59 degrees


    the turkeys are cooking

    this is getting a little dull

    got to get the tankless soon
     
  8. Winslow

    Winslow Plumber

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    All the indoor tankless WH I have installed utilized a double wall pipe with a double wall finish adapter to trim it out.
     
  9. GrumpyPlumber

    GrumpyPlumber Licensed Grump

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    Many have two options.
    Concentric, or seperate vents.
    Rinnai has a very affordable concentric kit so it's commonly used, others require SS vents that are pricey, so concentric kits aren't used much due to price.
     
  10. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    Week #10

    Keep forgetting to post

    the water temp is now about 58 degrees

    the gas meter reads 7400 cu ft
     
  11. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    Week 11

    Time just flies when you are having fun


    now sitting at 7970 cu feet

    temp is starting to crash somewhat

    down to 55 and falling

    supposed to snow tomorrow night
     
  12. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    week #13

    meter is at 9260 cu ft..

    Misplaced my thermometer....but
    the water is getting pretty cold


    averaveing about 600 cu feet per week
     
  13. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    week #15

    Meter has jumped up to 12075...

    so the cu feet jumped to over 1000 per week..

    incomming water temp is now at 51 degrees

    but we had a lot of parties and a
    very , very large sister in law'
    stay with us over X-mas

    (she about needs a car wash with a pressure washer to bathe in)




    still haggeling over a tankless....
     
    Last edited: Dec 30, 2007
  14. Cookie

    Cookie .

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    Maybe a new lower maintenance wife with skinnier sister might help? :D
     
    Last edited: Dec 30, 2007
  15. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    go for it

    you can go ahead and post your informationhere if you so like or start your own thread....

    what brand did you buy???

    how many people and bathrooms are involves

    are you having to adjust yourlifestyle??

    how happy are you with it already??


    I cant say wether my approach is very accurate but
    with the meter in line I should have a handle on usage
    to the heater only...

    Now if you really want to split hairs... go to e--ba///

    and buy a meter like the one I bought and put that in line to the tankless unit only and see what happens....

    have fun
     
  16. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

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    week 17 jan13, 08

    meter now reads 13,124....

    used around 550 cu feet per week
    for the past two weeks

    water temp has not changed
     
  17. H20Man

    H20Man New Member

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    Yeah, you should have bought a Rinnai. 8 gpm.

    Also, you're missing the point on the tankless heaters. Yeah, they are more efficient since you don't have to keep a tank hot all the time. But for me, the major benefit is that you NEVER run out of hot water.


     
  18. H20Man

    H20Man New Member

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    This is only true for the el cheapo tankless heaters.

    All the good ones adjust their BTU output based on the temp of the incoming water. You can even set the temp of the outgoing water to a specific value.

    Putting a tankless before a tank is absolutely useless (unless you have a hot water recirculation system, and then you'd only use a small tank).

    What's the point? You're still keeping a tank hot during idle times, so you're not saving any money.
     
  19. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

    Joined:
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    indianapolis indiana - land of the free, home of
     
  20. Master Plumber Mark

    Master Plumber Mark Sensitivity trainer and plumber of mens souls

    Joined:
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    indianapolis indiana - land of the free, home of
    week #19 jan 27 08

    hey its really cold out there....

    the incomming temp has CRASHED to 43 degrees...

    my gas hot water heater meter is now reading 14,750 cu feet....


    I really , really would like to see how a Tankless would
    do at this temp....

    and I am debateing about this right now--should I spend the money
    and switch over to a Takagi?

    this would be the ultimate test for one in the mid-west...

    water at 43 degrees is enough to kill with prolonged exposure to it

    and it will make that

    tankless really strain to keep up...
     
    Last edited: Jan 27, 2008
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