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).
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Why can a common vent configuration be too big if we disconnect the gas furnace?
Our house has an electric AC and natural gas furnace heater setup. The AC is getting old and having issues, so we want to replace it, and are thinking of upgrading to an air source heat pump. We ...
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What is the proper way to perform a maintenance flush on a water heater?
Should I completely close the cold water inlet and attach a hose to the drain valve (located near the bottom of the water heater)? or should I leave the cold water inlet to the water heater open and ...
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Can a loss of power cause a dry fire condition, or vice versa?
I had a Rheem Prestige Hybrid Electric Water Heater installed on in my pacific northwest home last November.
In January, one day our breaker tripped twice, for no apparent reason (no abnormal or heavy ...
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Water Heater not getting 240v?
My water heater stopped working a few days ago and I've been trouble shooting it ever since.
I found water in the connection receptacle. the leak from the the Air Conditioning unit above it has been ...
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Possible causes for a gas tankless water heater sometimes shutting down
I have a Rheem ECOH2OODVLN gas tankless water heater. I'm not sure of it's exact age as it came with the house, but it's in good condition (clean, no dust, no visible damage, etc.).
The situation: ...
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Gas water heater fails draft test
The guy from the gas company turned on my gas water heater and held a lit wooden match near where the flue sits on top of the water heater - it blew out. He says it's not getting a correct draft.
The ...
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Tool to unscrew or remove the top portion of pressure regulating valve buried in ground
The pressure regulating valves are typically installed right by water mains where I live (in Texas). They are buried 1 ft+ deep and a circular tube is installed for you to access the top screw to ...
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Preparing a water heater for storage
I am in the process of gutting two houses. One has an electric water heater, and the other has a propane one. As I am taking the systems offline, how can I best prepare the units for storage? I think ...
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Why do water heaters get up to 12 year tank warranties in consumer stores, but only 10 year in supply warehouses?
I'm looking at gas tank water heaters sold in home improvement stores (Rheem Platinum at HD, AO Smith ProMax series at Lowes) and they offer up to 12 year warranty for their top models. Meanwhile ...
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Can tankless water heaters be mounted to the underside of joists in a crawlspace?
My single-story 1100 sqft home (1 bathroom + laundry + kitchen) currently has a gas 40gal tank water heater. We're looking to renovate and remove the tank water heater. It would be replaced with ...
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Why momentary chemical smell after Tankless Hot Water Heater install
Why is my hot water stinky for a few seconds? This is a strong but hard to describe chemical smell like CPVC glue, not rotten eggs and not sewage or gas.
I put in a new propane-fired tankless water ...
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Corrosion due to dissimilar metals or bad ground?
I'm a 1st time home owner but experienced DIYer here. Unfortunately I have little plumbing experience. I installed a hot water recirc. pump at my hot water heater about a month ago. I did not notice ...
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Increasing gas pipe size from 1/2" to 3/4" at appliance
I'm planning to purchase and install a new condensing tankless water heater (Takagi T-H3J-DV-N) that will supply both domestic hot water and space heating (radiant via heat exchanger, separate closed ...
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Possible cross over issue with water lines
About 2 weeks ago our hot water started getting less and less hot, now it is completely cold. If I turn the cold angle stop off at the sink, so only the hot water line can feed the faucet, and turn it ...
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Where could the air in the water system be coming from?
We live on the top two floors of a small brownstone walkup. To get the heating to work upstairs I need to bleed the baseboard heater almost every other day. All faucets in the house sputter, and the ...
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Why are red indicators showing on all my circuit breakers?
As far as I can tell, all the breakers in my apartment's panel are showing as tripped (red 'button' visible), and yet everything has power... except my water heater. It is no longer heating up when I ...
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Why am I not getting hot water from my heater?
I have the water heater pilot on but I don't have any hot water flowing. I do have cold water running through the pipes. My water heater is in the garage and it's freezing temps. I had a heater on the ...
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Best way to de-scale my home (gas) water heater?
I recently did the recommended yearly draining of our home (gas) water heater. I opened the pressure relief valve to bleed air into the tank so that it could drain. After putting everything back, I ...
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Gas.water tank issue with flame control
As soon as I turn on the burner it lights up fine for about 5 seconds then turns off like its running out of gas and after I try to re light the pilot it takes about 5 mins to get the pilot back on.
...
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Why does my new water heater pilot go out every so often?
My water heater pilot light will go out at most inconvenient times ever since I installed it. I can light it then days or weeks later it will go out again.
Why?
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Rheem water heater keeps locking out
My Rheem water heater, model # PRO + G60S-55NCN62PV, keeps shutting down with this error - Maximum amount of ignition attempts has been reached and system is in lockout. It was happening for around 6 ...
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How to elevate a gas water heater about 1" above the floor drain
I recently had a new gas water heater installed in our laundry room. It was several inches wider than the old one. As a result, the installer sat it on top of the floor drain, completely covering it. ...
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Does my gas water heater have a problem if the On/Pilot/Off knob rises slowly instead of popping up quickly?
To light my water heater's pilot light, the instructions on the side say to put the On/Pilot/Off knob into the Pilot position and then hold it down for one minute after lighting the pilot light with a ...
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Is my water heater tank system normal?
I bought a heating system a year ago for my house.
It is a water heater tank. The hot water inside is heated
when the price of electricity is cheaper during the night and
two hours in the middle of ...
user158525
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Mixing CPVC sizes through a heater
I am off grid, and need more hot water pressure.
When they built my house they plumbed 1/2 inch CPVC to two showers, 3 sinks and a washer.
The reason is the hot water heater has 1/2 inch in and out, ...
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Will adding a transfer grill to the mechanical room help with water heater backdraft?
I have a small mechanical room in the basement with an HVAC system that has an open return at the base plenum under the furnace blower.
There are no transfer grills and cold air returns to the ...
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Warm water often coming from cold taps
The issue I am having is that very often, the water in the cold line from my taps is cold for a few seconds when I turn it on, and then it warms up almost immediately and stays warm.
Last year, I was ...
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Does a diverter valve based on temperature exist?
I want to install a solar water heater in my house in the future, so I've been thinking about how I could do it, something like this:
Cold water enters the solar heater, hot water comes out.
If it's ...
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Is this a drain-pipe?
I am about to install a water heater in our condo. This is inside the house so I want to be careful about possible leaks. I am putting a drain pan underneath it and need to connect it to a drain ...
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Trying to replace this leaking heater with a tankless, need help with the piping
Just moved into this house, South Florida, two stories, the heater is leaking and I'm replacing it with a tankless. I'm not sure how to plumb it since now I realized I have more pipes coming and going ...
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What would cause a terminal to explode like that on a circuit breaker switch?
My landlord was having his fun turning on and off my stove and hot water to get me to move out instead of fixing broken windows.
As soon as the police got involved and my lawyer sent a notice, he had ...
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Electric hot water heater, no hot water after main break in city
Electric hot water heater is not working after a nearby city water main break. Switched circuit breaker off and on and also hit reset on the heater, but still nothing. Water comes out of hot faucets, ...
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Dialectric water heater connection
I noticed a lot of corrosion around the connection between the nipples coming out of my water heater and the flex connectors.
The nipples are regular galvanized steel. Is this corrosion of dialectric ...
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Water heater boiler has nasty red sludge leaking out of it
My water heater wasn’t performing as expected today while attempting to draw a 2nd bath. So I went to look and the rusty water leak seemed somewhat prominent, so I’ve gone ahead and opened up the unit....
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Replacing flow switch on Titan water heater
I need to replace the magnetic flow switch on my Titan tankless water heater...Do I insert it from the side like the diagram shows, or do I need to open the panel?
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Water protection on top of heat pump water heater
I just got and installed one of those new heat pump water heaters. I was able to plumb the cold and hot fittings to the side because the top has an air inlet and a heat exchanger, but there is some ...
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Fixing a leak in water heater pipe joint
I had a new water heater put in and discovered a slow drip at the joint where the hot water pipe from the heater connects to the house piping. The installer claimed that he didn't touch that solder ...
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AO Smith Electric Water Heater that keeps needing to be reset
Recently replaced the thermostat but I keep needing to reset the water heater due to cold water and then it becomes scalding water for a short time before it goes cold again. It's an 80-gallon unit
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Why does my tankless water heater turn off when I open the cold side of the faucet?
Just got a new Canon tankless water heater. I was wondering, why does the heater go out when I turn on a cold water knob while the hot water knob is still open. Like, I'll turn on the left/hot water ...
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Electric tankless water heater as preheat system before gas tank water heater
I have an apartment building with 12 units and a laundry room with 6 washer and dryers. I am about to install a solar PV system, and see this as my chance to reduce my gas bill by taking the load off ...
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What size anode do I need for this tank
I have an old pressurized hot water cylinder and I am trying to change the sacrificial anode however the local plumbing stores seem to only have anodes for models they currently sell and also I'm ...
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Do I need to replace the water heater vent pipes if they have salt corrosion?
I was in my attic improving the insulation and I found that my exhaust pipe for the water heater has salt/corrosion all around the seams.
Based on what I found, this is either caused by inadequate ...
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Service needed to add a tankless water heater
I am currently building a detached 250 sq feet studio in my backyard. The studio will have a tiny bathroom with a tankless water heater, a baseboard heater, and a few lights, a mini split (ac), of ...
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What Pex system and re-design would you use for this small bungalow update - Floor Plans Attached?
There is a small Bungalow in the Midwest that I have attached two new design drawings for. Its a smaller 740sqft home with a 1st floor and current unfinished basement. I wanted to see if the group ...
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Salt ring around water heater
I turned off my water heater while on vacation. I did not turn off my water softener. I returned home to find a salt ring outside the water softener overflow pan and what appears to be dried up water ...
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With post-build instant hot water systems should the homeowner be extra diligent about water heater maintenance?
Instant hot water systems that are installed after a house is built use the cold water pipes to return hot water back to the water heater, or discharge that water through normal cold water use. (I ...
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Correct installation of a water expansion tank?
I am moving my 80 gal water heater to a better location in my basement to give shorter hot water plumbing runs and be next to my furnace.
The old expansion tank was installed in "series" ...
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Do electric tank-less water heater require flushing and how do one do it?
On this site, it says:
Because electric tankless still "lime up," and the sediment has to be cleaned out periodically or they may fail.
So, do electric tank-less water heater really require ...
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Can my incoming water lines to water heater be reversed?
I shut-off incoming cold water at top of water heater, disconnected the hot side in preparation for new install. Opened house taps to bleed water lines. The next morning my garage was flooded. The ...
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Stop Cold water Flowing in through HW out-take on Water Heater?
I found the reason why cold water is flowing back into Water Heater through the Hot Water exit pipe, but how do you fix this? I have a shower with a balance valve and all my faucets are single lever ...
