Questions tagged [hot-water]

Questions about systems that produce and distribute heated water.

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7
votes
3answers
603 views

Are electrical screws a standard diameter?

I've just had to reset the thermal cutout of my immersion heater. Whilst removing the cover, I've stupidly dropped the nut somewhere behind the tank. Fishing around with a magnet has pulled up all ...
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1answer
12 views

Delta two-handle still leaking on hot side

So, I'm obviously doing something wrong, but I'm not sure what. I have a delta two-handle fixture in my bathtub and it was steadily dripping from the faucet, so I thought I could fix it myself. I ...
0
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1answer
87 views

Why is it illegal to change temperature of water heater?

The title is a little misleading. I know why it’s illegal, but I think what’s really important is the end result (users, especially children, don’t get burned). I’m curious why it isn’t equally as ...
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1answer
28 views

Extension Hose for a Tank Booster

My plumber told me that this tank booster won't work with my hot water heater. [edited: somehow the rest of my question got stripped off on first post] His reason is that the cold water inlet and ...
16
votes
3answers
2k views

Turn off hot water without hot water valve

I have a leaky pipe on the hot water side that I'd like to fix. Following the pipes back to the water heater, I don't think there's a shutoff valve installed anywhere in the line, not even at the ...
0
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1answer
38 views

Anode rod debris on bottom of tank

I replaced the anode rod on my water heater, when I looked down after draining, I could see pieces of the old rod lying in the bottom of the tank. The old rod clearly had bits broken off from the core ...
0
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2answers
86 views

If I flush my hot water tank without unplugging the recirculating pump, Will it cause the pump to fail?

If I flush my hot water tank without unplugging the recirculating pump, Will it cause the pump to fail? Will the failure happen immediately, or can it fail later over time?
2
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0answers
50 views

Why are my water heater's hot and cold connections oriented opposite convention?

I installed a 30 gallon Rheem water heater at one of my apartments. When I started to install the water lines, I noticed the right side indicated it was the hot side. The HOT word was stamped in the ...
0
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1answer
36 views

How long for the hot water to stop smelling with anode rod change?

I changed the anode rod in my hot water heater, the change went smoothly (thankfully), but now I'm curious how long does it typically take for the water to stop smelling? Do I have to drain the entire ...
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3answers
76 views

Shower runs cold, then hot, then cold. Faucet in same bathroom runs hot after shower

The 50 gallon gas water heater is on the first floor. Water pressure coming into the house is roughly 40 psi. On the second floor the kitchen and bathroom faucets are cold when turned on. I mention it,...
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0answers
36 views

Insinkerator Instant Hot SSRV-1 Spitting Air — Need Ball Valve

My Insinkerator Instant Hot undersink water dispenser is about 8 years old and it has begun spitting air when running water. It is not a steam/overheating problem, because it only spits air when ...
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0answers
27 views

Reinstall kitchen faucet supply valve with line to faucet facing downwards?

I Recently installed a new kitchen faucet with a weight on the hose to the retracting nozzle of the faucet ( black cylinder in picture ). Unfortunately, this new weight lays on top of the hot water ...
2
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1answer
25 views

Shower is either all hot or all cold

I have new house and one shower is either all hot or all cold. The shower head in the off position is down and when I turn it to the left its all hot. center is off and right is is all cold. I tried ...
0
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2answers
78 views

Hot water heater thermostat contacts burned - how to repair?

The attached photo is the lower thermostat on my electric hot water heater. We noticed a burning odor yesterday so I shut off the power and looked behind the panels to investigate. How is this ...
1
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1answer
92 views

Does my utility room need fresh air? If so, possible solutions?

Our home has a ~ 13' x 12' utility room that houses our HVAC system and gas hot water heater. Adjacent to this room is another room that we would like to use for an office. Currently those two rooms ...
2
votes
1answer
45 views

Tobacco smoke smell from utility closet

I'm in a condo with neighbors on both sides. utility closet is in the basement. It smells like old stale cigarette smoke in my utility closet, like somebody has been smoking cigarettes in there for ...
1
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1answer
66 views

Why is shower water temperature not adjustable?

The temperature in my Hansgrohe Thermo Balance shower is always the same, no matter which way I turn the knob. It's generally warm enough to shower, but I cannot adjust it neither hotter nor colder. ...
2
votes
4answers
70 views

Thermostatic control of an unmanaged energy source to supply hot water cylinder

I have a solid wood burner that contains a heat exchanger. There is no guarantee that the combustion can be regulated. This heat exchanger feeds a loop that acts as the source heat exchanger in a hot ...
1
vote
1answer
88 views

PEX pipe burst: what else needs to be fixed to prevent it happening again?

I'm a renter in NYC and our 4-story building has recently-installed (within the last 8 years) baseboard hydronic heat. All of the tubing is PEX, except for from the boiler itself (as required by code) ...
2
votes
3answers
48 views

Hot water without hot water supply and electricity

I have a tap in a room where I only have a cold water supply. Also I don't have current electricity nearby. Is there any way to provide at least lukewarm water there?
2
votes
2answers
194 views

Black greasy specks in sinks, dishwasher, etc. at home

We have been noticing black specks that leave a greasy trail when smeared in our bathroom sinks and on dishes washed in the dishwasher in recent weeks. After some research, I find that the 2 main ...
2
votes
2answers
73 views

Hot Water Heater leaks through drainage spigot after flushing

I flushed my hot water heater several months ago. Ever since, it has leaked through the drainage spigot. I've tried to tighten it to a point where it looks like it stops, but it starts again soon ...
2
votes
1answer
51 views

Hot water heating recommendation

I'm looking for a recommendation on the best course to update our hot water heating system.Some background: When we moved into our upstate NY, 2200 sq. ft. home five years ago, the home was heated ...
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0answers
37 views

Hot Water Inconsistency

I've recently noticed an issue with the hot water in my shower. After I start the shower water flow and wait for the warm water to start coming out, it stays warm for about a minute, then it gets ...
1
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1answer
71 views

Can a shower mixing valve leak water from cold to hot lines if there is no pressure on the hot line?

My hot water heater started leaking today, so I turned off water to my house at the curb. After the tank was drained, I disconnected the cold line and turned off the valve right above the hot water ...
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2answers
40 views

Question on New Shower Install Pipe Sizing

I am currently remodeling my bathroom downstairs (same floor as the water supply entry to the house). I want to install a Moen U thermostatic valve with (two) 1/2" inputs and (two) 1/2" outputs. I ...
1
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1answer
205 views

Hot water comes out once toilet is flushed

I turn on the hot water faucet and cold water comes out. This happens everywhere around the house. Once I flush the single toilet that's on the first floor and wait 1-2 mins, hot water starts pouring ...
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1answer
26 views

How do I purge the air from a hot water furnace with zones

I want to try and bleed the air from my hydronic ( baseboard ) heating system. It's a natural gas system, I think I understand the basic functionality but my system seems to be a bit unusual and I'm ...
0
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1answer
50 views

Hot water leak from heating system

I discovered there is some hot water is leaking from what seems to be a pressure release point of my heating system. I am not very good at plumbing so i will probably hire a professional if this is ...
0
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0answers
17 views

White residue on flow heater pipe

My flow heater (Vaillant VED E 18/7) stopped working when I switched a breaker off. Upon opening the casing, I found out two things: 1: The water intake pipe has a small white discoloration and seems ...
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0answers
34 views

Bradford White Water Heater Loud Noise (No vibratrion; Exhaust sound)

Tonight our hot water heater starter making a loud noise that sounded like gas escaping from the bottom of the unit. I've provided a video for reference. I'm an amateur when it comes to this stuff, so ...
16
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4answers
6k views

How do electric hot water heaters explode and what can be done to prevent that from happening?

My neighbor and good friend is a union steamfitter, and general handyman. He had to replace his electric hot water heater last year and he did it himself. My wife and I have to replace ours now, and ...
0
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1answer
169 views

Dishwasher not getting hot water

I'm trying to find out if this is a Bosch dishwasher problem or plumbing problem before making call to right repair shop. My dishwasher does not have heating coil. We moved dishwasher from left of ...
1
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1answer
43 views

Electric water heater stopped working when I adjusted the thermostat

I have a Craftsmaster 40 gallon electric water heater that is approximately 13 years old. Once it got cold outside and we started taking more hot showers, I felt like we were prematurely running out ...
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0answers
30 views

Hookup Nest Themostat & Heatlink

I'm in the UK and trying to install a Nest Thermostat & Heatlink at home to control my hot-water and central heating and I'm having a few issues working out how my existing setup works so I can ...
1
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1answer
113 views

What is the official definition of first-hour delivery of hot water tanks?

I am looking at getting a new hot water tank. In deciding between a 40 gallon and a 50 gallon, I discovered that the 40 gallon has a higher first-hour delivery rating than the 50 gallon (see this spec ...
2
votes
2answers
244 views

Why would turning on/off hot water when the toilet is flushing cause the tankless pressure relief valve to release water?

I noticed the other day that my tankless hot water tank was occasionally spraying water all over the place from the Pressure Relief Valve. The only way I've found that seems to reliably trigger this ...
1
vote
2answers
110 views

Installing Tankless Hot Water System - Amp Questions & Using AWG 6 Wire with Current Tank

I'm looking into researching about installing a Hot Water Tankless system. Specifically I want to install the following: Rheem Tankless Water Heater 2.14 GPM 13 kW Self-Modulating Electric Wall ...
0
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0answers
25 views

Is my CH/HW fully pumped? Is it two-pipe?

I'm having problems understanding the exact configuration of the CH/HW piping in my house. In particular, I have to understand where and how to place piping for additional radiators at the upper floor....
1
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0answers
53 views

Tankless Hot Water Recirculation

I recently had a Rheem Tankless Water Heater installed. The rtgh-95dvln-2. They installed the pump kit meant for the water heater, the ap17920. However, I do not have a dedicated recirculation line, ...
0
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0answers
38 views

Tankless hot water system only providing luke-warm water?

I have tankless hot water which has been working well up until this week. A week ago we discovered a leak on the hose from the propane tank, so we replaced the hose, but since then it hasn't seemed ...
0
votes
1answer
35 views

Hot water cylinder (direct heating), loosing heat and pressure during the day

I moved into a new property a few months ago with a direct heating hot water cylinder. This is a new one for me as I have always had a gas combi boiler before. I have economy 7, so the water heats ...
0
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1answer
56 views

How can I figure out if a Combi Boiler will be adequate for my house?

We recently moved into our new home that currently has a Super Hot MG-100 Hydronic Boiler (installed in 1986, when the house was built). Clearly, it's done its job and in need of a replacement. We had ...
1
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3answers
1k views

Can I run a gas hot water heater on propane?

I have property where I am boon-docking an airstream. I've been looking into a passive solar hot water heater design, For the holding tank I was looking at using an old hot water heater, I found a ...
0
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2answers
33 views

Thermostatic mixing valve that holds water temperature at 120°F / 50°C

I've recently installed solar hot water and as expected it gets extremely hot. I would like to keep the tank as hot as possible (>180°F) and simply mix down the water to 120°F / 50°C as it's used so ...
1
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1answer
71 views

Chlorinate hot water heater

I left town for a week and now have a hot water heater that's been sitting and apparently breeding bacteria resulting in an abundance of hydrogen sulfide. It stinks really bad. I tried emptying it ...
3
votes
1answer
201 views

A water heater pressure relief valve/pipe is guided to release hot water outside of the pan (see picture). Is this installation correct?

A plumber installed the hot water pressure relief pipe to point outside the water heater pan, as shown in this picture (on the right). What could be the reason to do so? Is this recommended/proper ...
0
votes
1answer
63 views

Intermittent cold water from the hot faucet

Why would cold water run from the hot water faucet (for about a minute), after the hot water was already flowing? This happened in two washrooms, at different sides of the house, but not at any other ...
0
votes
3answers
134 views

Can you use aluminum foil around gap at floor of hot water tank then seal?

Fairly big gap at floor around pipes of hot water tank. For mice prevention I read some where you could fill gap with aluminum foil then seal. Is this correct. If so what kind of sealant should be ...
0
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1answer
38 views

Hot Water Water Hammer When Cutting Off Cold Supply

The house is 3 years old. This just started to happen. When you cut off any cold water supply the inlet line to the water heater knocks or water hammers. The first attempt I cut the water off at the ...

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