Big Bath Tub Issues!

 
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Old 03-09-2012, 10:24 PM   #1
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Big Bath Tub Issues!


We got a huge, huge, huge tub when we remodeled. It's jacuzzi brand with jets and a heater . Figured out that the heater is just to keep the water warm once you have it in there. Well, my issue is that you cannot use the jets unless the water is really high in the tub, past the jets but we run out of hot water at about a 1/4 full. We have a fifty gallon water heater. Is the only option I have to go tankless?
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Old 03-09-2012, 10:30 PM   #2
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Re: Big Bath Tub Issues!


Gas or electric?

Depends how much & how hot you want the water.

I am not a tankless fan.

100 gal. commercial gas w/a 50 if you need it.

I have also installed double & triple 50 gal. electrics to handle the demand.

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Old 03-09-2012, 11:25 PM   #3
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So just add another water heater? 100 gallon. The one I have now is electric. Could go lp if need be.
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Old 03-10-2012, 12:19 AM   #4
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Re: Big Bath Tub Issues!


Is there a fireplace in this bathroom?
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Old 03-10-2012, 12:30 AM   #5
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Re: Big Bath Tub Issues!


Recently did a remodel and took out a 60+ gallon tub with an 80 gallon hot water tank. To me that size of a tub is a waste of cash. But I bet it sure looks nice.
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Old 03-10-2012, 05:07 AM   #6
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Re: Big Bath Tub Issues!


we've been ripping out the big tubs left and right. everybody had to have them in the 80's. cant tell you how many brand new ones we take out that builders installed and homeowners never even used. sad part is we have to cut em up in pieces because they dont fit through doors.
sad.. how much money wasted. biggest problem is the hot water issue. and not everybody wants a party of 4 IN their bathroom.
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Old 03-10-2012, 06:22 AM   #7
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Re: Big Bath Tub Issues!


Hot tub in the backyard. Problem solved!
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Old 03-10-2012, 07:47 AM   #8
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Re: Big Bath Tub Issues!


Are you using a mixing valve to fill the tub? If so consider changing the tub faucet. Keep the shower/handheld on a tempering valve.



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we've been ripping out the big tubs left and right. everybody had to have them in the 80's. cant tell you how many brand new ones we take out that builders installed and homeowners never even used. sad part is we have to cut em up in pieces because they dont fit through doors.
sad.. how much money wasted. biggest problem is the hot water issue. and not everybody wants a party of 4 IN their bathroom.
We just pulled out a 10 year old two seater jacuzzi, looked like it had never been used. New owners just wanted a soaker tub
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Old 03-10-2012, 07:57 AM   #9
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Re: Big Bath Tub Issues!


Electric hot water heater. Try filling the thing slower. What do you have for a boiler/furnace. Indirect hot water tank?
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Old 03-10-2012, 10:02 AM   #10
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Re: Big Bath Tub Issues!


She said she wanted a big tub and two sinks and a huge closet. So, that's what she got. She uses the tub a lot, but not the jets. Just fills it up about a third of the way and it works ok. It is not a mixing faucet. It's separate. I have a regular water heater, 50 gallon electric. I guess my question is, is there a in line water heater I could put under the tub on the hot water line that's 220 volt. Would that work. Y'all are do right though. Ir is way too big. I work in million dollar homes all the time and I have yet to see one of these big guys.
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Old 03-10-2012, 10:13 AM   #11
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Re: Big Bath Tub Issues!


I'd be interested in a solution for this too

How about 2 water heaters?? Would they be plumbed in series?


We're putting a Kohler 'Super Tub' in a friends house, and that sucker is 5' x 7'
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Old 03-10-2012, 06:48 PM   #12
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I'd be interested in a solution for this too

How about 2 water heaters?? Would they be plumbed in series?

We're putting a Kohler 'Super Tub' in a friends house, and that sucker is 5' x 7'
Welp, you'll be surprised how empty it looks when you run out of hot.
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Old 03-10-2012, 10:47 PM   #13
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Re: Big Bath Tub Issues!


A few things to consider. A btu is the amount of heat need to raise one lb of water 1*F. There are 8.33 lbs per gallon. There are 7.48 gallons per cubic ft.

Your "problem" is not uncommon. Storing enough water to use the bath is nuts, imho! You have a couple choices. You can figure the vol of the tub and work it out from there. I'm a fan of tankless water heaters. Depending upon the size of the tub it could be sufficiently filled with either one or possibly two tankless water heaters. A 180kbtu tankless can provide about 4.3gpm at a 70*f temp rise or 4.3 gapm at 120f. If you sit in a bath tub over 105f you are no longer bathing you are par-boiling, so by the time you mix it down to 105 You are in the range of 4.8 gpm at the tubspout. Depending upon the vol of the tub, you can deicde if one is sufficient. Some folks can't wait and want two or three unit$ to fill the tub quicker. Speed costs money. How fast do you want to go?

Your alternative is to install another water heater and maintain that tank all day every day. Not particularly efficient, but it may work. Whatever you do, figure the vol of the tub to determine the need for hot water. Good luck!
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Old 03-10-2012, 11:35 PM   #14
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Re: Big Bath Tub Issues!


Here is one we just ripped out and replaced with a walk in shower and smaller tub.

Big bath tub issues!-dsc09551small.jpg
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Old 03-10-2012, 11:39 PM   #15
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Here is one we just ripped out and replaced with a walk in shower and smaller tub.
My god that's hideous.
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Old 03-10-2012, 11:41 PM   #16
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Not no mo...

Big bath tub issues!-newtubsmall.jpg
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Old 03-10-2012, 11:43 PM   #17
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Not no mo...
Yeah thats looks cool. Interesting use of space. Nice work!
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Old 03-10-2012, 11:45 PM   #18
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Yeah thats looks cool. Interesting use of space. Nice work!
Thanks!
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Old 03-10-2012, 11:50 PM   #19
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Re: Big Bath Tub Issues!


How did you go about insulating the pipes on the exterior walls?
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Old 03-10-2012, 11:52 PM   #20
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How did you go about insulating the pipes on the exterior walls?
double wall...you can see it in the background. It turned out much better than I thought it would.

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