Hot Water Heater Tips
Performance Levels
Are you dissatisfied with the performance of your heater? Does it run out of water too soon? Does it take too long to heat up again? Did you know that the SAME gallon capacity heater can heat water at different rates? This is a well-kept secret many people are unaware of.
The burner at the base of the heater comes in different sizes. The bigger the burner, the faster it can heat water. Often the burner size is related to the warranty. I believe this is a decision the stocking distributor makes. In other words, here in Cincinnati, if you want the powerful large burner, you have to buy a heater with a 10 year warranty. It is worth it! Be sure to investigate this when you purchase your next water heater.
What is the Right Size?
Choosing the correct sized hot water heater depends upon the fuel source. Gas (natural or LP/propane) produces hot water faster than electricity. If your family has five or more people and you use lots of hot water, you should have a 75 gallon gas hot water heater. If you want the ultimate in performance and can afford it, get a commercial hot water heater. These have very large burners and can really heat water quickly. A family with three or four members can usually get by with a 50 gallon heater.
Remember, you can extract more hot water from your tank if you raise the temperature setting. Because you temper the hot water with cold water to make 'lukewarm' water, you will use less volume of hot water from your heater when you wash dishes and take a shower. This means that the 50 gallons of heated water will go a lot farther. DANGER! Be aware that doing this creates a burn hazard. If you raise the temperature too high in the heater (anything over 125 F) you can cause a child, an elderly friend or yourself to get burned!
If you use electric to heat your water, a high demand family of five or more will require a 120 gallon heater. The average family can get by with an 80 gallon tank.
Insulating Heater Tanks
You can purchase hot water heater covers to help insulate the tanks. Don't install one of these unless you are certain the manufacturer permits it. There is always the possibility that adding a kit like this could void the warranty.
Burping & Bubbling
Does your heater groan, bubble, burp, etc. as it heats water? If so, this is a sign of sediment buildup at the base of the tank. The sediment is expanding and popping as it heats. Sediment is bad because it creates a barrier for the burner heat to pass through on its way to the water. Drain one gallon of water from the heater each month.
Shut Off & Temperature/Pressure Valves
If you install a new heater on your own, DO NOT install a shut off valve on the hot water outlet water line. Only install a valve on the cold water side. If a valve is on both lines, and some idiot turns them off while the heater is on, AND the Temperature / Pressure valve fails......BOOM! It has happened before, I have seen a heater go from a basement through two floors and a roof and end up 150 feet away. NEVER re-use a Temperature / Pressure valve from your old water heater. Always buy a new one.
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Comments:Welcome! I, Tim
Carter, don't answer questions
here. If you post a question here in the Comments Area,
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Tim page if you want a question answered. Once there, look
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Lloyd 23 Feb 2008, 13:56
Hi. I need to install a new gas water heater tank. The old one was
installed on the basement floor on an angle - about a 10 degree slope. Is
it all right to install tanks on a slope like this? I'm concerned that the
gas burner may not be able to heat the water in the tank evenly, because
the flames would tend to go straight up. I'm also wondering if sediment
would gather in the lowest point of the sloped tank (the point farthest
away from the burner flame). What do you think?
AsktheBuilder 01 Mar 2008, 08:23
Lloyd,
You need to install some steel shims under the legs of the new heater to get it level.
Valentin 10 Mar 2008, 07:29
Hi, I have an electric hot water tank with a 6-year warranty due to expire
soon. My condo association send me a letter me that I need to replace the
tank. What is the deal? Why I cannot continue to use that tank and if it
needs repairs I could pay out of pocket or replace it at that time?
AsktheBuilder 13 Mar 2008, 06:12
Valentin,
Perhaps they are worried a leak will damage a condo below you. I think you should replace the anode rod and all will be fine. Go read all about that in some of my past water-heater columns.
howard 17 Apr 2008, 21:19
my electric hot water tank shuts down were is the reset button and what
causes this. i also have a second water tank hooked up to it thats not
working.
D Murphy 16 May 2008, 19:01
When i run the hot water anywhere in my house the water comes out brown,
but only the hot water not the cold. I went to the drain on the tank and
alot of black and brown came out of the tap. Does this meen that i need a
new tank or that i just have to drain it?
Kate 26 May 2008, 13:43
I am buying a older home and fixing it up. There is a hot water heater in a
fairly big closet. I want to move it and have the Laundry room there. Can I
move it? how hard is it to move it to a completely different area?
R Bindschadler 11 Jun 2008, 07:21
The hot water from my 3-yr old water heater suddenly has become very hot.
I've turned down the temperature setting on the heater, but it seems to
make no difference. I understand the scalding danger at the tap, but is
there a danger to the heater unit itself or to my house? What could be the
cause of this change and the solution?
Everett 03 Jul 2008, 08:08
I installed a new gas water heater and the condensation keeps tripping the
safety by dripping on the burner so it only burns for about 1 minute. Is
there a way to fix this so I can get out of hot water with the MRS.and in
hot water in the tub?
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