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Tankless Water Heater Install Question Jimmy 03-10-2007
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Posted by Jimmy on March 10, 2007, 12:53 pm


I recently purchased a Takagi TK1S, I am preparing to have this
installed soon. My question is this: my existing tank (located in my
basement) has 3" exhaust that goes into the chiminey stack, can the
new venting replace this? Does the venting only need to enter the
stack or does it need to be piped all the way to the roof? I hope
this makes sense. I have a couple photos if that will help,
unfortunately I cannot post them here, so I will email if needed.
Thank you.


-Jimmy


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Posted by Roger Shoaf on March 10, 2007, 2:28 pm


If it is anything like my installation you are going to need the big vent
all the way to the top. Tankless water heaters crank out a lot of BTU's so
they need a large pipe to vent them. Look at the installation instructions
that came with your unit for the proper size of the vent.

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.


> I recently purchased a Takagi TK1S, I am preparing to have this
> installed soon. My question is this: my existing tank (located in my
> basement) has 3" exhaust that goes into the chiminey stack, can the
> new venting replace this? Does the venting only need to enter the
> stack or does it need to be piped all the way to the roof? I hope
> this makes sense. I have a couple photos if that will help,
> unfortunately I cannot post them here, so I will email if needed.
> Thank you.
>
>
> -Jimmy
>



Posted by hallerb@aol.com on March 10, 2007, 11:40 pm


you need LARGE input gas line probably starting at meter and large
vent pipe.

Sadly you will save little energy, no money once you upgrade everthing
so the tankless works./

If your tankless requires a pwer cord, no power cold shower.

with a tank type heater theres still some hot water for a bath or
shower or two

why did you buy a tankless?



Posted by Roger Shoaf on March 10, 2007, 11:58 pm



> you need LARGE input gas line probably starting at meter and large
> vent pipe.
>
> Sadly you will save little energy, no money once you upgrade everthing
> so the tankless works./
>
> If your tankless requires a pwer cord, no power cold shower.
>
> with a tank type heater theres still some hot water for a bath or
> shower or two
>
> why did you buy a tankless?
>
>

I converted from an electric. I was told that they used less energy, but
since I didn't have a gas tank I had nothing to compare. I do really like
the fact that I don't ever run out of hot water, but the maintenance is a
pain. It is also annoying when you are in the shower and someone else uses
water.

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.



Posted by on March 17, 2007, 11:06 am


> I recently purchased aTakagiTK1S, I am preparing to have this
> installed soon. My question is this: my existing tank (located in my
> basement) has 3" exhaust that goes into the chiminey stack, can the
> new venting replace this? Does the venting only need to enter the
> stack or does it need to be piped all the way to the roof? I hope
> this makes sense. I have a couple photos if that will help,
> unfortunately I cannot post them here, so I will email if needed.
> Thank you.
>
> -Jimmy

Let us know how the installation went/ how things are working.

I'm considering an installtion on a major renovatin. How did you
decide on a Takagi vs. Bosch, etc?

Good luck!


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