Home>Discussions>PLUMBING>Not enough hot water to fill the tub
15 posts / 0 new
Last post
Re: Not enough hot water to fill the tub

Try turning the recirculator off and see if the water stays hot. It may have been hooked up backwards.

Re: Not enough hot water to fill the tub

I have turned the recirculator off and it still does heat properly.

After a little internet research, I have found that you need a directional valve installed in the line to insure water flows in the correct direction. I do not remember seeing one. I will check when I get home.

This would explain it. If it is flowing in the wrong direction in the loop then water would be coming from the bottom of the tank.
Does this sound reasonable?

Re: Not enough hot water to fill the tub
tbgworldwide wrote:

I did a quick search and found that 120 degrees at the tap is recomended. It takes 10 minutes of exposure to 120 degree water to cause damage to children. Check and see what your temperature is at the tap. You may need to adjust it. But thats just my opinion. How far of a run is it from the heater to the tub?

Better check again. I think its more like 10 seconds.

Re: Not enough hot water to fill the tub

We are having the same problem. We purchased a house back in July and I had plenty of hot water. Now, we run the hot water for 5 minutes before we run out of water with a 50 gal hot water heater. Our plumber changed out both heating elements, the top one twice, but we still have the same problem. Now he is telling us that we have a hot water leak somewhere below our slab and that we have to re-pipe the hot water through the attic, which will cost quite a bit. Has anyone heard this before. I would hate to tell an 'expert' what may be wrong instead (perhaps the dip tube is failing).

Just looking for some opinions.


Sponsored Stories

TV Listings

Find TV listings for This Old House and Ask This Old House in your area.