Questions tagged [hot-water]

Questions about systems that produce and distribute heated water.

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Can I directly connect cold water supply line to a ever-hot hot water dispenser tank

I have an ever-hot hot water tank. The inlet of cold water comes from the faucet/dispense, which is chilled from the cold water chiller. Can I directly connect a cold filter water to the tank?
Frank's user avatar
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Is an HVAC Reducing Elbow a Thing?

We're installing a Rheem Hybrid (heat pump & electric) hot water heater. The space where the heater goes is very tight and I need to use elbow on the cold air discharge as I come out of the heater....
dlu's user avatar
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Hot water pressure won’t come back. Cold water is fine

So I had to remove the cartridge from my shower. I shut off the main valve on top the water heater but couldn’t figure out why it didn’t stop the cold water. I eventually had to go outside and open ...
Richard carter's user avatar
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2 answers
51 views

How high can baseboard heaters be installed?

I'm trying to do a basement loop to heat up my basement. Can I install a hot water baseboard at approx. 12" from the floor?
Omar's user avatar
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1 answer
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Why does my tankless gas water heater shut off when cold water is turned on?

When taking a shower, I have the hot water faucet full open. Then, if I turn on the cold water faucet on more than half way the heater shuts off. It will not start back up until the cold water is ...
Sean Ragan's user avatar
2 votes
1 answer
130 views

Is my Dedicated Recirculation Line designed correctly?

Question 1.) TLDR; is my design, overall, ok? (Pictured at bottom) I was originally going to do a dedicated "race-track" style hot water recirc line, then I came across a this YT video (...
Larry Lupe's user avatar
1 vote
1 answer
50 views

Why do I have water temperature fluctuation?

Bought a house with a newer hot water heater (less than 5yrs old). The shower would never get very hot and would quickly run out of hot water completely (7-12 minutes). We replaced the cartridge ...
Melissa Dawn's user avatar
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1 answer
68 views

Diagnosing water heater - can I apply voltage to a thermocouple?

American Water Heater BFG6140S403NOV I am troubleshooting this water heater. The pilot light won't stay on and I suspect it is the thermocouple. I measured the voltage while running the pilot ...
John Smith's user avatar
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2 answers
75 views

Does the water heater tank have anything to do with the house heat? [closed]

My water heater tank started leaking so we shut it off until we find the money to replace the water heater tank. However, we noticed that as soon as we shut it off, there is no heater in the house. ...
Rosario Urena's user avatar
1 vote
1 answer
80 views

Replace Anode on 10 year-old gas-fired hot water heater? Or leave well enough alone? [closed]

Our gas-fired 60 gallon Rheem performance water heaters is just about 10 years old. I've never replaced the anode because I'm an idiot and didn't realize that needed doing until recently. Should I ...
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Hot water tank leak on to the burner

I have recently drained my hot water tank as part of yearly maintenance which I have done it once after I bought this house a year ago. I see this morning water leak on to the burner made burner go ...
Afroz Patnam's user avatar
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Parallel installation of tankless electric hot water equipment with a boiler

I have a normal, hot water system in my apartment with an electric boiler (40L). I would like to improve my hot water system and install a tankless instant electric hot water equipment, parallelly ...
zappee's user avatar
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What would happen if I turned a trunk hot water system into a loop? [closed]

The plumbing fixtures in my house are in two clusters - a west cluster including 3 bathrooms on two floors and two kitchen sinks (20 feet at most from hot water heater) and an east cluster including 1 ...
James's user avatar
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2 answers
149 views

Will this tankless electric hot water installation work as I expect?

I am planning to install a small electric tankless/instantaneous hot water unit in my bathroom. My question is only related to the connected water pipes. Can I connect the incoming cold water pipe ...
zappee's user avatar
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Gas pipe sizing and pressure need for adding tankless hot water heater

I am trying to figure out if we can add a 199,000 BTU tankless water heater to our house/system. We currently have a dryer (B in figure) and gas stove (C in figure). The water heater will be at A, ...
r_alanb's user avatar
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Vibration on cold water pipe into boiler mate

I’ve searched but can’t find my exact problem. We have a boiler mate for our hot water. When running either shower, the cold water pipe into the boiler mate vibrates causing a water hammer like issue. ...
Kay's user avatar
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Would it be fine to use EMT to power a tankless water heater instead of flexible alternatives?

I recently had some plumbers install an exterior (natural gas) tankless water heater here in central Texas, in case the jurisdiction and / or climate matters. For the purposes of getting it installed ...
ZachS's user avatar
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Alternatives to direct wood fired bathtub

For several years I have lived with a wood fired bathtub. It works well enough except for scorching temps the bottom gets to. The work around is to sit on a board but when you have accidental contact ...
Joseph Crawley's user avatar
2 votes
1 answer
87 views

How to access the primary anode rod for Kemore Power Miser 12?

I am attempting to check the status of the anode rod(s) of a Kenmore Power model 153.320892HT. Based on the owners manual, there are 2 anode rods, a primary which is accessible via the top of the ...
David Anderson's user avatar
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Restricted Hot Water at shower - what is this debris?

I found that the hot water in one of the showers was very restricted. It has an american standard valve which I opened up. At the back of the valve, on the hot water side only, there was debris in ...
kolcun's user avatar
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Is self-seal rubber k-flex safe for hot water pex pipe

I ask because it seems the adhesive is melting and sticking to the pipe (see attached image). Is this okay? Should I instead use k-flex that isn't self-seal? Or maybe should I use a different ...
teachmehow1977's user avatar
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1 answer
430 views

Draining an unvented hot water cylinder

I have an unvented hot water cylinder in my apartment (OSO Hotwater, Direct 20 RD) I need to drain and disconnect it, but I’m just wondering the how I can drain the system without too much wasted ...
Harrison's user avatar
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1 answer
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Failing recirculating pump? Only one faucet slow to heat

10 years ago I had professionally installed a recirculating pump (Grundfos UP15-29SU) in our house. Essentially all hot supply lines were replaced by a single loop feeding all the faucets one after ...
user677660's user avatar
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1 answer
67 views

Rheem Hot Water Heater Leaking

I have this water heater: https://www.homedepot.com/p/Rheem-Performance-40-Gal-Tall-6-Year-36-000-BTU-Natural-Gas-Tank-Water-Heater-XG40T06EC36U1/205811145 It's only 4.5 years old (under its 6 year ...
Kulluk007's user avatar
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3 votes
2 answers
461 views

Very low hot water flow in single fixture

I have very low hot water flow (0.7 GPM) to my master shower. Other fixtures served by the same hot water line get about 2.5 GPM hot water or more. I suspect that there is a kink in the final PEX run ...
Drew Shafer's user avatar
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42 views

Water gets cold when central heating is on?

I have a Vaillant System Boiler with an external cylinder to store hot water. After heating the water, If I switch on the central heating the water supplier to the taps/showers gets cold after a short ...
james's user avatar
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2 answers
80 views

No hot water if recirculating pump is off?

We had a town water issue that resulted in very little to no water pressure in the home. Ever since our Grundfos recirculator isn’t functioning properly. We’ve tried bleeding the air out of it, but ...
Lori's user avatar
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2 votes
1 answer
53 views

How to change the anode on this water heater?

I have a Bradford White water heater installed in 2011. I was following this video to replace the anode. I was expecting my water heater to look like in the video, with a clear nut to unscrew. ...
BurnsBA's user avatar
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2 answers
389 views

Can I run a 277V Instant hot water heater at 240V?

I am off grid using a Growatt 5000w inverter @ 240V (single phase). I want to know if the Chronomite SR15L 277V instant hot water heater can run on 240V power. This is because their 240V model will ...
staticGenerator's user avatar
1 vote
2 answers
92 views

Why doesn't my tanked hot water heater require frequent maintenance?

Hot tubs need frequent maintenance: Maintaining PH levels, cycling/filtering, cleaning, etc. However, a tanked hot water heater needs none of that. Some of it makes sense: a hot tub is more likely ...
Nathan Merrill's user avatar
-1 votes
1 answer
83 views

Why did my water stop getting hot and my stove doesn't do anything

Cold water coming from the hot water heater. Changed the bottom heating elament that was bad and let the tank refill. Turned power back on and waited an hour, turned the water on to see if it was ...
Please help's user avatar
1 vote
1 answer
243 views

can a used tank water heater be reconditioned for safe usage?

I need to replace an electric hot water tank (it has started to leak). I'd like to replace it with a used one because the property, which has 2 occupied units, is for sale and it is expected to be ...
Ric's user avatar
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2 answers
220 views

Why does my water heater let the water cool down sometimes?

I'm a homeowner with a gas water heater that was installed in 2010 (before I moved in) in Central MD. It is a 71 gallon tank. State Select. Sometimes the water is normal hot temperature, while other ...
Stealth Rabbi's user avatar
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36 views

Leak at hot water valve, brand new valve and installed by pro

The valve is new. The hose is new. I made sure the valve for the hot water was off as well because I Never use hot water to wash my clothes in AZ. It actually looks like the water from the washer is ...
Steffie L.'s user avatar
1 vote
1 answer
82 views

Gas hot water tank keeps switching off

My gas hot water tank with a White Rodgers controller was off this morning with an error code telling me the max ignition attempts have been exceeded (Vacation light on + A light + B light). I ...
JPF's user avatar
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1 answer
135 views

Propane water heater won't stay lit

My water heater is 3 years old and a I've never had an issue with it until recently. It just won't stay lit. It goes out within seconds. I replaced the thermocouple and did the soapy water test to ...
user170638's user avatar
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0 answers
286 views

Easiest way to connect hose on hot water

I have an inflatable hot tub but also a heat pump water heater which is extremely efficient to heat water. As such, I’d like to fill the hot tub with pre-heated water instead of relying on its highly ...
divB's user avatar
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1 vote
1 answer
59 views

Hot Water Coming Through the Inactive Cold Water Line?

After teeing the cold water line under my sink and connecting a hose, I shut off the cold water. When I turn the sink on the coldest water setting, no water comes through the hose. And when I turn ...
Cody Kentucky's user avatar
-1 votes
1 answer
292 views

Hot water heater gurgles when cold water is used (e.g., with toilet)

Scenario: my 9yo natural gas 40gal Whirlpool hot water heater has been "draining" (i.e., being used) for 5+ minutes from someone taking a hot shower or washing dishes with hot water. If ...
theforestecologist's user avatar
-1 votes
3 answers
281 views

My hot water heater uses about a 10th of a gallon an hour, no visible leaks , and when I turn the valves off to the hot water heater , the meter stops

My hot water heater seams to use water Aqua came out said my meters ok. My meter shows about a 10th of a gallon use per hour. When I turn the valves off to the hot water heater this meter progression ...
user avatar
2 votes
1 answer
346 views

On Demand electric water heater on a well, works intermittently. What are ideas for consistent hot water?

On Demand electric water heater on a well, works intermittently. Replaced 3 X over 12 years, the problem persists and I'm sick of it. My gut says it's about water pressure/flow, because sometimes you ...
Overit's user avatar
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0 answers
44 views

Leaking hot water tank connections

I modified the outlets on a solar hot water tank, and now it leaks. The leak occurs between the brass fitting on the bottom (Edwards hot water) and the short pipe below. I don’t know what sort of ...
Polypipe Wrangler's user avatar
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1 answer
34 views

Compact Hot water tank - can cold water go on the to and hot water come out the side connections

I am installing a space saver 6.5 tank Is it ok to connect the cold to the top connection and use the side connection for the hot water out
David's user avatar
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1 answer
474 views

Can I connect two tee fittings to under kitchen sink water supply?

We are buying a house and want to do 2 minor upgrades to whichever home we purchase for sure: we have a countertop ice maker that can be connected to a water supply so you don’t have to manually ...
Taylor DeShazer's user avatar
2 votes
1 answer
247 views

Replacing leaking valve where the only upstream source is at the hot water tank itself

We're doing a kitchen demo and changing where the dishwasher is going to be, so Step 1 is to disconnect the dishwasher (3 connections: electrical, drain and water supply). I have already taken care of ...
hotmeatballsoup's user avatar
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0 answers
30 views

Heat and hot water only gets warm on second floor

My heat and hot water only gets warm on the second floor. When I turn on my faucet and shower the water gets hot for a second then goes to warm also when I turn my heat on it takes a really long time ...
Tammy's user avatar
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2 votes
2 answers
63 views

Is this temperature and pressure release piping up to code?

I just finished installing this Rennai natural gas tankless heater yesterday, and it's working well. My only question is I'm wondering that if I ever get it inspected, will this T&P release piping ...
ConcernedHobbit's user avatar
0 votes
1 answer
3k views

Does it matter which way the handle of a single lever faucet is facing when off?

I have a single lever, GIAGNI brand "industrial" style faucet where the handle pulls outward to run the water, then forward and backwards (while in the outward/open position) for hot and ...
Rachel's user avatar
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0 votes
1 answer
159 views

Pump for hot water heater making noise

The city shut off water for a couple hours overnight without notice. When I tried the faucet in the morning it ran dry. I also noticed that a pump in front of my hot water heater started making noise, ...
Matt Kneiser's user avatar
1 vote
1 answer
1k views

Non-anti scald shower valve?

We have two showers in our house that have the single handle valves. The anti scald devices are turned all the way to hot, but the showers just don't get above about 100 degrees. All the sink fixtures ...
Raduck77's user avatar

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