Questions tagged [hot-water]

Questions about systems that produce and distribute heated water.

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3answers
242 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 ...
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3answers
3k views

Flow sensor adjustment for Navien 240S natural gas fired tankless water heater

We installed a Navien 240S natural gas in our house, and it is working fine. Except the short range for hot water valves in the showers. So, in other words, I need to turn shower valve almost all ...
0
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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 ...
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 ...
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2answers
82 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?
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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 ...
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1answer
86 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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2answers
2k views

No hot water pressure - perhaps sediment clogging exit pipe from water heater

Here's the situation: Almost no hot water pressure (just a trickle) at all outputs (not just a single sink with an issue) Cold water runs fine and has full pressure Water heater is tank-style and is ...
0
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2answers
527 views

Temperature of water in the shower fluctuates - will a cheap thermostatic tap help?

I recently moved to an apartment where temperature of water in the shower fluctuates and we called for a plumber. He either cleaned up or replaced one part (I think it was the mixer - nothing visually ...
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1answer
354 views

Where to place an aquastat that is external to the hot water tank?

If you need to retrofit an aquastat to a heating system what is the best way to do so? i.e., in some hot water tanks or even boilers there may be a purpose-made port specifically to accept a "well" ...
4
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1answer
2k views

How could a hot-cold plumbing crossover spontaneously appear?

OK, this is a weird one. Follow the bouncing ball: I have a tankless water heater I've had problems the last few weeks with the water running lukewarm instead of hot. Someone suggested power-cycling ...
1
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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,...
16
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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
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 ...
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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1answer
53 views

hot water, baseboard oil boiler - bleeding at boiler site possibility?

I may replace my current oil, baseboard boiler but would prefer bleeding the system at the boiler site (if it's possible) vs at every room separately. Is it possible to bleed air out at the boiler, ...
0
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1answer
50 views

Temperature monitoring for storage hot water system (RP-2 connection)

My HWS has a secondary outlet connection I don't use, and I'd like to use it to install a thermal probe I can monitor. HWS RP ¾ / 20 temp probe? Does anyone know of a practical way to install a ...
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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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 ...
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2answers
2k views

should i wrap exhaust duct joints of hot water heater?

i replaced my hot water heater. I used a single flexible 3" metal duct tube to go from the new unit to a an old "y" connector metal duct that is near the ceiling in the utity closet. I noticed ...
0
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1answer
65 views

Can lost water pressure cause a water heater to leak/rupture?

I woke up this morning at 5 am to my water heater making loud noises. It had leaked all over the floor and the bathroom sink had a steady stream of hot water that wouldn't turn off. This water heater ...
2
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2answers
27k views

How should I connect nipples to a hot water heater?

I recently installed my new hot water heater. I know nothing about plumbing and my installation procedure was informed only by sketchy home depot employees and youtube. One of the issues I'm having ...
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 ...
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 ...
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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 ...
1
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0answers
34 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 ...
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 ...
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3answers
639 views

How do I bleed a noisy radiant heat system?

I have a gas fueled (converted from oil just a few years ago) boiler in my basement with an integrated tank-less water heating system for the showers/taps/etc. The output is three zones as shown in ...
2
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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
65 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
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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 ...
2
votes
1answer
13k views

Why isn't the hot water in my shower hot enough?

I have two showers in my house, one seems to be noticeably cooler no matter what I try. Both are Symmons Temptrol model A. The house is mostly PEX except where copper is required. I cannot take ...
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0answers
2k views

No hot water in only one bath tub

We are not getting hot water in only one bath tub. The left side is for hot water and right side is for cold. There is no drop in pressure when I turn on only the left side. But instead of hot water ...
2
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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?
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3answers
7k views

Hot and Cold water seem to be mixing

Having a problem with hot and cold water seemingly mixing in my house where some locations can't get cold water and others get a mix of warm/cold from hot settings. The scenario Moved into a new house....
1
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1answer
87 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
2answers
193 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
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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 ...
1
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1answer
127 views

why won't my shower regulate water temperature

a couple days ago this started. no matter what position I turn the handle towards the left it's always very hot. and the same if I turn it to the right. very cold. I'm assuming there must be some sort ...
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
70 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 ...
1
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1answer
201 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 ...
3
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10answers
10k views

How do I get an exterior vent to stop frosting over in a cold Canadian winter?

We have a high-efficiency gas-fired hot water heater (in our a basement) that is vented to the outside of our house. When the weather gets below -30°C the vent has a tendency to frost-over. When ...
1
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3answers
11k views

Why does my boiler vent steam?

My understanding of a boiler system is that it is closed, meaning the water stays in the pipes and constantly recirculates. However, there is a vent (3" PVC pipe) that is connected to it that ...
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 ...
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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