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  1. #1
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    Default Hot Water Takes A Long Time To Reach Shower

    Hi,

    When I turn on a hot tap in any faucet in my house it takes up to 2 minutes for the temp. to get 'hot'.

    My hot water heater (which is about 8 years old and I'm told '82% efficient') is out in the garage. I live in Seattle so it's not -that- cold but still.

    Is there something -simple- I can do to improve this without moving the heater? Or is that a stupid request?

    Aside from the water waste factor, I also wonder if it wastes a lot of -heat- ($$$).

    The only thing -my- un-handy brain can think of is wrapping insulation on the hot pipe all the way from the heater, under the crawlspace to each tap. I wonder what the cost/benefit is?

    TIA,

    ---JC
    Last edited by suntower; 12-06-2011 at 01:23 AM.

  2. #2
    Join Date
    Dec 2010
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    Houston Texas
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    Default Re: Hot Water Takes A Long Time To Reach Shower

    You can;

    1- Insulate the pipes and the space around them.

    2- Turn up the temperature of the water.

    3- Swap the pipes out for CPVC or Pex type if your local code allows.

    4- I'd start by flushing the HWH and checking the pipes for corrosion.

  3. #3
    Join Date
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    SoCal
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    Default Re: Hot Water Takes A Long Time To Reach Shower

    Yes, all of the above, plus:

    Look into installing one of those recirculator pump, a small device that will bring hot water to your remote faucet faster.

  4. #4
    Join Date
    Nov 2009
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    73

    Default Re: Hot Water Takes A Long Time To Reach Shower

    Thanks.

    1. Can you give me specifics on pipe insulation? I see this black foam stuff all over the place. Does it -really- help enough to justify all the work (crawling around under house)

    ---JC

    Quote Originally Posted by HoustonRemodeler View Post
    You can;

    1- Insulate the pipes and the space around them.

    2- Turn up the temperature of the water.

    3- Swap the pipes out for CPVC or Pex type if your local code allows.

    4- I'd start by flushing the HWH and checking the pipes for corrosion.

  5. #5
    Join Date
    Aug 2008
    Posts
    78

    Default Re: Hot Water Takes A Long Time To Reach Shower

    How many feet of pipe from the garage to the house taps are we talking about????

    It's inherently a bad strategy to have the HWH in the garage if room can be found for it as near as possible to the taps.

    Pipe insulation & a recirculator would help a little, but with insulation you still would have standing water in that long length of pipe that would come out cold or lukewarm before the hot arrives; the recirculator would add extra expense to the hot water bill.

    If you can, I say move the HWH to as near to the taps as possible.
    Last edited by von_steuben; 12-06-2011 at 11:30 PM.

  6. #6
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    Default Re: Hot Water Takes A Long Time To Reach Shower

    Quote Originally Posted by von_steuben View Post
    How many feet of pipe from the garage to the house taps are we talking about????

    It's inherently a bad strategy to have the HWH in the garage if room can be found for it as near as possible to the taps.

    Pipe insulation & a recirculator would help a little, but with insulation you still would have standing water in that long length of pipe that would come out cold or lukewarm before the hot arrives; the recirculator would add extra expense to the hot water bill.

    If you can, I say move the HWH to as near to the taps as possible.
    Move the water heater inside the home?

    No, the garage is the best place for a water heater. If you move it inside the home and you have a malfunctioning water heater while you're out of the house, you'll have damages in the ten thousands.

    A recircling pump works well and it's the best answer for this guy's problem.

  7. #7
    Join Date
    Aug 2008
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    83

    Default Re: Hot Water Takes A Long Time To Reach Shower

    Quote Originally Posted by dj1 View Post
    Move the water heater inside the home?

    No, the garage is the best place for a water heater. If you move it inside the home and you have a malfunctioning water heater while you're out of the house, you'll have damages in the ten thousands.

    A recircling pump works well and it's the best answer for this guy's problem.
    More like damage in the tens of millions! Oh Yeah!

    C'mon dj, we haven't even established what the house looks like, the type of HWH and all those millions of homeowners who DO have a trouble-free HWH in a utility room/home.

  8. #8
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    Default Re: Hot Water Takes A Long Time To Reach Shower

    Quote Originally Posted by dodsworth View Post
    More like damage in the tens of millions! Oh Yeah!

    C'mon dj, we haven't even established what the house looks like, the type of HWH and all those millions of homeowners who DO have a trouble-free HWH in a utility room/home.
    I don't know about you, but I've seen defective, old water heater damages:

    Floors, drywall, furniture, cabinets, mold - do I need to mention more?

  9. #9
    Join Date
    Dec 2010
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    Houston Texas
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    Default Re: Hot Water Takes A Long Time To Reach Shower

    I have 2 HWH's in my attic. The TMP valves are drained to the side yard, the pans underneath the heaters drain to the garage. One recently started leaking due to the accumulated rust of 19 years of faithful service. When the leak was spotted on the side yard, the HWH was replaced with zero damage to the interior of my home.

    In the warmer seasons (which here in south Texas is 11 months a year) the attic is commonly 150F, so my hot water is mostly free.

    Just sayin.....

  10. #10
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    Default Re: Hot Water Takes A Long Time To Reach Shower

    Houston,

    You were lucky to spot the leak before it had a chance to cause any damage. BUT...

    1. What if you were away for extended time?
    2. What if the leak happened in the supply lines or the shutoff valve and the pan didn't catch the water?
    3. What if the leak was in the tank, the pan cought the water but the drain line was plugged up?

    You see my point?

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