Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [water-heater]

For questions generally relating to the hot-water supply system of a typical residential or commercial building, primarily regarding the heating mechanism itself (a traditional hot water heater tank, tankless heaters including "point-of-use", boilers and heat exchangers, etc).

0
votes
1answer
58 views

Can I have two different types of water heater in the same house?

I currently have an indirect fired 55 galon water tank. The house is pretty big and the former owner had a second, power vented water heater on the other side of the house. It seems he also had the ...
1
vote
1answer
23 views

How to clear a copper water line in the concrete pad?

I replaced a gas hot water heater. I opened the valve to fill it while the faucets were off.( The gas is not yet turned on.) Then opened the kitchen hot ,of course a blast of air then some slightly ...
1
vote
1answer
19 views

New water heater and expansion tank - low pressure

Replaced a 20+ year old natural gas 75 gallon water heater recently with an equivalent model. The plumber said an expansion tank was required per code. Two things I’m noticing now with the new set ...
1
vote
1answer
38 views

Can you shorten class B water heater vent pipe?

New gas hot water heater is 5" taller than old (of course the same size would be too easy).Flex water and gas lines -no problem; but the class B ( double wall ) exhaust vent is ? Can it be cut? How? I ...
0
votes
1answer
22 views

How should I terminate water heater drain pan?

I have a water heater drain pan installed and I'd like to terminate it as close to code as is possible. The pan/water heater is currently in a closet that barely fits the pan. So unfortunately, there ...
0
votes
2answers
35 views

Bradford White water heater: burner making loud noise towards the end of the heating cycle

I have a Bradford White gas water heater. By coincidence, we noticed that the burner flame pops all of a sudden and a big flame starts up in the unit (see video for location). I sat for an hour in ...
0
votes
1answer
61 views

Hydrogen peroxide to clean water heater

As I pour in the peroxide, in a few moments it bubbles back out, even doing just an ounce at a time, I removed 6 gallons of water before starting. Why is it coming back out of the heater?
1
vote
2answers
26 views

Tankless Water Heater and turning off main water supply

I presume there must be plenty of protections for such a case, but is there any reason to be concerned if I turn off (or my fortrezz value and smartthings turns off) my main water supply and my Rinnai ...
0
votes
1answer
31 views

Electric water heater T&P popping off

I am having a problem with the T&P valve opening continuously, on & off. I found the T. stats where bad due to temp settings 140 degrees replaced, the expansion tank full of water replaced ...
0
votes
1answer
70 views

Is it worth changing my old water tank/heater? [closed]

I don't have gas. It appears to be working ok. Just concerned it may fail one day and flood the place.
0
votes
4answers
88 views

Do my washing machine and dryer need to be close to the water heater?

I just purchased a house and near the kitchen it has a location for the washing machine and dryer. The water heater is near by in a separate cabinet. I would like to move the washer and dryer into the ...
12
votes
4answers
5k views

Is my plan for fixing my water heater leak bad?

Here is the situation (with pics): See that pan on the bottom? The hole in it is covered by tape. So here is what I was gonna do. Is this a good idea? First. I've gone out and purchased a new pan ...
2
votes
1answer
19 views

Is my indirect fired hot water heater hooked up correctly?

I have an indirect hot water heater HTP/Superstor SUU-119 and the heating loop looks like this: I am wondering whether this is correct because it seems weird to me that what appears to be the supply (...
1
vote
1answer
11 views

Does the circulator in an indirect fired water heater point towards the boiler or towards the tank?

In the manual for my SSU-119 indirect fired hot water heater, the following text seems to suggest that the circulator points towards the tank: On the water heater, the boiler supply connects to the ...
0
votes
1answer
42 views

Can you identify the spigot attached to this water heater?

I have a corrosion problem on my new indirect fired water heater. HTP technical support, the company that makes the heater, wants to know the alloy of the spigots attached to the hot water inlet and ...
1
vote
2answers
59 views

Should I replace a water heater preemptively?

I have a conventional gas-fired 40-gallon hot-water heater in my basement. It currently works fine, and there is no visible rust on it or pipes near it, but it turned 20 years old a few months ago. I ...
0
votes
0answers
14 views

Found out expansion tank for water heater was bad after leak. Should I change connection that leaked?

My home has PEX pipes. The PEX pipe runs under the sink and has a fitting that goes directly on the bottom of the faucet. I noticed that the hot connection would leak about 30 mins after a shower. Did ...
0
votes
0answers
18 views

bath faucet is hot but shower head always turns cold

My shower has a single lever that turns from right (cold) to left (hot). When the lower bath faucet runs the water comes out hot. But the upper showerhead never heats up. If I run the lower faucet ...
0
votes
2answers
85 views

Can I turn the water off at the street to work on my plumbing?

My angle valves under sink are hard to reach with garbage disposal in the way. Can I turn the water off at the street to change parts in faucet, or will this drain my gas hot water tank?
0
votes
3answers
39 views

Which is cheaper? Tankless or Storage water heater?

We are planning to build a family house, 2 adult, 2 child, 100m2, eastern EU. We got stuck that what kind of water heating should we use. Where we use hot water?: shower kitchen sink in bathroom ...
0
votes
1answer
21 views

How can I winterize a set of Polaris heating units?

We have 11 cabins that have Polaris water heaters with a copper tubing system that uses a blower to create the heat for the cabins. We live in an extreme winter climate and sometimes the water ...
0
votes
1answer
38 views

Water Expansion Tank precharged at 25psi. House pressure at 70

I have a water expansion tank (5 gallons) installed on a new water heater (40 gallons) and my houses PSI is at 70-80. The tank came precharged at 25psi. I know that I am supposed to match my home ...
0
votes
3answers
80 views

Can I have a tank fed water heater in line with a tankless water heater?

Long version (skip below for tl;dr) I recently purchased a new house. (first owner) 3 floors, unfinished basement where the hot water heater is located. Approx 3300 sq ft. When looking through the ...
0
votes
0answers
16 views

Effect of troubleshooting gas hot water heater on gas boiler

My new gas hot water heater doesn't heat -manufacturer said shut off cold water intake valve for 1 hour, then check temp of water out of release valve and call them back. It appears that shutting off ...
1
vote
1answer
30 views

Standard water heater outside the house?

A guest house built with one bedroom also had a nice sized portion left unfinished for storage and freezer space. We have decided to finish this area, making a second bedroom. Currently the 50 gal ...
1
vote
4answers
51 views

Efficiency of a heat pump water heater during the winter

In my understanding, heat pump water heaters pump energy from the room around the water tank into the water. Clearly, this must be energy efficient in the summer time, especially if I am using AC ...
8
votes
4answers
168 views

Can my home's power supply handle this tankless water heater?

So my home was built in 1960 and 15-20 years later another room was added on. There are panel boxes everywhere ha. I have mapped it all out and isolated almost everything. Anything that is ...
0
votes
3answers
82 views

How does water flow through my water heater and up to the top floor without a pump?

My house has a gas based water heater(geyser) on the outside. The plumber has connected it such that without the use of electric pump, just through pressure alone, hot water reaches the 1st and 2nd ...
2
votes
1answer
47 views

How should I treat and store an unused water heater to protect it?

We have turned off one of our gas water heaters because we simply have low demand. What we wonder about is how to treat the mothballed heater? Should we leave the water in it? switch between water ...
2
votes
2answers
72 views

Do pex fittings need to be replaced when installing a new water heater?

I have purchased a new water heater to replace the original 11 year unit. I am concerned in attaching the existing fittings to the new unit. I believe the builder used pex directly to the original ...
5
votes
1answer
211 views

Why does shutting off cold water valve to the water heater shut down cold water in entire house?

I'm a new homeowner so maybe my understanding is off. My question is, why would turning off the cold water intake valve on the top of the heater turn off cold water to the entire house after about 12 ...
2
votes
2answers
52 views

Water heater sacrificial anode metal selection

A residential 17 year old electric water heater is working well in Florida. Maintenance is overdue. I plan to inspect / replace: sacrificial anode (expected to replace) heating element (expected ...
0
votes
2answers
53 views

Pre-emptive Water Heater Replacement

An old ground-floor office has an old electric water heater. The building was built in 1994, so the water heater's age could be ~25 years. The tank / office has been unused for the last 8 years. ...
0
votes
0answers
30 views

Two overflow lines on hot water heater

Why do I have two overflow lines plumbed from my hot water heater. I know what the one is for the pressure relief valve, but I have another one plumber directly after the shutoff valve on the cold ...
0
votes
2answers
121 views

How can I temporarily bypass a water heater?

Is there a way I can keep my water turned on and bypass my water heater so I can have water in my home? It's a 30 gallon electric water heater... I can't get a water heater until next week..
0
votes
0answers
76 views

Water Heater Not Working After Replacing Both Thermostats and Testing Elements

I replaced both the upper and lower thermostats with new ones. I tested the elements with a multi-meter and the top one was 15 ohms and the bottom one was about 12 ohms so they seem to be fine. I even ...
0
votes
2answers
62 views

“Hot water” cold after heavy rain

This is very odd, but every time we get a heavy rain, the hot water in our house is lukewarm at best. We have a fairly modern gas-fired hot water heater (GE GG40t06avg01, mfg 2011), and at all other ...
0
votes
1answer
104 views

T&P relief valve's probe size issue - can I use a shorter exposed probe to replace a long one

Please check the below picture, can I use a longer neck of T&P valve which has shorter exposed probe compare with my old to replace it?
0
votes
0answers
54 views

Something like ICE inside of tank of gas water heater, what should I do?

I saw the ice stuff inside of my tank when I try to change my Pressure relief valve, is this real ice or something else? this thing really scares me when I saw it, just like the alien's baby nest, lol....
1
vote
3answers
112 views

T&P valve is really tight, not able to remove it

I have the below T&P valve, I'm not able to remove it to replace a new one. I saw there has some declaration above the valve which said it's the combination of the water heater, does this mean I ...
0
votes
0answers
75 views

What is this pipe?

I discovered a 12" diameter concrete pipe traveling vertically from the basement to the attic of a one story house. The pipe is lined both internally and externally with metal. I would like to know if ...
0
votes
1answer
54 views

Cupric chloride on pressure relief valve of gas water heater

I found more cupric chloride on my pressure relief valve after back from a 2 weeks vacation, should I worry about it? And, what should I do before turn on the gas water heater? It used to has some ...
0
votes
2answers
94 views

Hot water recirculation pump suggestion in home with return hot water line [closed]

We had a hot water re-circulation pump by water heater before and had it removed last December when we detected leaks around it. This is our setup: We have a return hot water line coming back to the ...
0
votes
3answers
52 views

ECO 36 on 200 amp panel

I want to install an ECO 36 36kW electric water heater which requires 150 amps max. My house panel is 200 amp and is out of space. What are my best options?
0
votes
1answer
39 views

What energy saving methods can I use for a new gas water heater?

I am getting a new water heater (Bradford White RG2PV50T6N, which is gas powered). I was wondering if I could do anything easy to make it more energy efficient. 1) Would a jacket help conserve heat? ...
1
vote
3answers
58 views

Is a tank less water heater a bad choice for a house with low water flow?

We are thinking of replacing our current natural gas tank water heater by a high efficiency tank less heater. However we have a water main issue, the house is from 1930 and the main is partially ...
1
vote
2answers
47 views

Can the overflow pipe on the water heater be screwed off to replace it with a longer one?

Can you screw off a water flow pipe and replace it with a longer one that terminates closer to the floor.
0
votes
1answer
50 views

Tankless Water Heater - wasting water

It takes a while for the water to heat going to the tankless water heater and in doing that, a lot of water gets wasted. Is there such a thing as a pre-heat switch that would start the heating ...
0
votes
1answer
77 views

Hot water heater running out at 50%

I have a 120 gallon indirect water heater. I notice that when I take a shower with a 3 gpm shower head, the water starts to cool after about 20 minutes, which would be 60 gallons or only 50% of the ...
0
votes
4answers
132 views

New electric hot water heater, hot water turns luke warm after 12-15minutes of use?

Converted my oil burner to a gas burner and added an electric hot water heater. When i use the shower the hot water turns to luke warm in 12-15 minutes. It was installed by a professional plumber and ...