10:12AM | 01/29/99
i just bought an house built in the 60s, but apparently, the hot water heater (40 gallons) is only around 10 years old. this house we can't take two consecutive 10 minutes showers without running out of hot water. i would suspect that deposits have built up in the waterheater and are actually reducing the volume to less than total capacity, but it doesn't seem old enough for that sever a reduction.

my questions are: is there another problem that could be causing it? if it is lime deposits, is there a way (short of buying a new waterheater) to eliminate the buildup? and lastly, what are the benefits/problems with a tankless water heater and how much do they cost?


11:19AM | 01/31/99
The lifespan of water heaters is 10 to 15 years. Your synopsis is probably correct and there is no easy solution other than a replacement.
The tankless heater will run you a couple of hundred dollars more than a conventional, however, the payback will occur in 3 to 5 years since you will not be wasting energy by constantly reheating the water when it is not used. The only drawback is that you cannot get a full flow of hot water by running more that two hot water faucets at the same time. This is a minor inconvenience since it seldom or ever happens.


11:47AM | 02/02/99
There is an additional draw back on tankless
water heater. Since I was about to put one
in replace my water heater. However an issue
turned up with the flue. I was planning
on using the existing flue with the furnance.

Flue is 5 inches going up in the middle of
the house. Both tankless and furnance will
go around 240K BTU. The flue will NOT be able
handle it. So now I still investigating on
the work around. One option is to replace
the furnance with a 92% eff. which uses the
PVC then the flue will be free up for the


Steve C

03:49PM | 02/03/99
They do make a tankless that direct vents though the wall, that is the one I am looking at for my 2- mstory house.


07:23PM | 02/16/99
I can’t say much about tankless heaters, but there is one possibility on the problem you are experiencing with your current heater. It has happened several times with me.

Inside your tank is a long tube that connects to your cold water inlet, and channels that cold water to the bottom of your tank. This is so the cold water, coming in to replace the used hot water, doesn’t just get ****ed back up the hot water supply.

Well, when this tube gets rusty, it develops holes in it or gets fractured, and the cold water doesn’t reach the bottom of the tank, but rather, somewhere in their middle. Suddenly, you’re running out of hot water even though the heater doesn’t seem to be running much, and it doesn’t happen slowly, like you’re running out of water in a normal tank. You go from hot to cold real quick. Now those tubes can be replaced on some models. It happened to me twice, and in one instance I was able to change the tube, and in the other I was not. You can tell by looking at the top of the tank, and if you see a threaded flange bigger than the tube, you probably can. It’s a standard length of galvanized pipe.

Another possibility is if your tank is electric. At 40 gallons, I doubt it is, but if so, one of your heating elements may be out. Essentially, you’re heating only half the tank. Parts for this situation can be bought at most hardware stores.

There are some other possibilities for gas heaters, but they are remote, and possibly expensive to repair. Keep in mind on any repair that your current unit is 10 years old, and may not be worth any time, money, or energy to repair. Consider, if you go conventional replacement, to upgrade to at least 50 gallons if you have an electric unit.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

Colorful, useful, and fun, these tire planters form the foundation for a delightful container garden. Just spray-paint old... Reused steel windows create an eye-catching splashguard in this walk-in shower. The vintage factory windows bring an inter... A galvanized steel tub is a surprising but charming fixture in this bright and breezy screened patio. It's perfect for was... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... If you lack plumbing skills but have a good sturdy tree, here's the easiest outdoor shower solution of all: Simply attach... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... How do you like this smart use for an old bottle? Clamp an empty wine bottle to a fence or wall near your outdoor deck or ... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon