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Questions about systems that produce and distribute heated water.

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1answer
18 views

water heater - flow problem

got a new 3 liter instant water heater installed. When the heater is off, water flow is normal. When it is on, about one liter or so hot water flows and then there is no water. What might be the ...
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1answer
14 views

How to remove thermocouple from this manifold door?

It has a black object that seems to be secured down by a U shaped clasp. I cannot see how the clasp can be removed. Everything is tight and doesn't appear that a tool can fit anywhere to loosen it up. ...
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3answers
61 views

Small electric water heater below sink to get instant hot water?

There is quite long pipe going from the gas water heater to our kitchen sink. This means that there is a delay before hot water actually becomes hot, especially in winter months. Now I saw that there ...
2
votes
2answers
77 views

Will increasing the temperature of my hot water cylinder's thermostat make my shower water supply last noticeably longer?

I have an unvented electric immersion heater cylinder which heats the hot water for my household. The capacity is 200L and the temperature is set to 55°C. The water heater is hard-wired to run ...
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1answer
83 views

Hot water tank cold water is always flowing

My hot water tank cold water is always flowing and it's losing water out of the temperature valve relief tube on the cold water intake side (see attached photos). I just noticed this, but it could ...
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3answers
68 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 ...
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1answer
58 views

Should I turn the water off to my home during a winter absence?

I will be leaving my home for three months, during winter, where I can expect the weather to go below freezing. My question is if I should turn off the main water valve in my house or just to the ...
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votes
1answer
43 views

How to check and turn on pilot light of this water tank?

I have never done this before but the gas line was turned off briefly and now we have no hot water. Look like the pilot light went out on this but I have no idea how to see the light and how to turn ...
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1answer
160 views

Hot water is not getting hot in kitchen sink only

The hot water valve is open and the water comes out but it stays cold. We shut off the cold water valve and it made no difference (besides obviously when you turn to cold side no water pours). We ...
0
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1answer
23 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 ...
0
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1answer
33 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 ...
4
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1answer
101 views

In-floor radiant heating hooked up to hot water tank in new home - questions about how it works and operating it

I've moved into a new 2 story house. The heating system is in-floor water heating, and the heat source is an electric hot water tank. I'm hoping you guys can help me figure out how the system works ...
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0answers
48 views

Vent Tube for the Insinkerator Instant Hot Water Dispenser

Does the clear vent tube need to be attached directly to the faucet for the system to work? Our clear tube has broken off at the faucet side with the metal connection inside. We have the older ...
0
votes
1answer
188 views

How to shut off water coming from the hot water heater

I'm trying to shut off water coming from my hot water heater. I currently have the water shut off to the entire house due to a shower repair that went awry (hot water flows like a shower even though ...
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0answers
33 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 ...
0
votes
1answer
61 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
votes
1answer
41 views

Activating hot water recirculation pump in garage via extension cord under kitchen sink

I have a hot water recirculation pump installed near the water heater that is located in the garage which provides instant hot water via dedicated 1/2" copper pipes. Although I have a timer that ...
0
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1answer
40 views

Hot Water issues in entire apartment, How can I fix this?

We lease an apartment and the maintenance has been less than effective at fixing this issue so was wondering what other people think about it. We've got 2 showers and 3 sinks, this issue is happening ...
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0answers
32 views

Isolating water supply to replace basin tap with no local stop valve

I got a new tap for a pedestal basin. Looking at the existing fittings there is no local valve to shut off the water at the basin itself where the water pipes come out of the wall & connect to the ...
0
votes
1answer
58 views

How can I drain the hot water line in my house? (re: adding a spigot)

I'd like to add a hot water spigot to the outside of my house but my hot water heater doesn't have a shutoff for the output (ie. hot water side of plumbing). However, the cold water has a shutoff (...
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2answers
72 views

Replace electric water heater with gas tankless (electrical connection)

I want to replace my electric water heater with a gas tankless water heater. My current water heater like most electric hot water heaters takes 220 and the tankless gas water heater uses 120. The room ...
1
vote
0answers
49 views

Sink water won't get hot unless shower is on

The sink tap takes 20+ minutes to even get lukewarm, never hot. I have lived with this for a while until I made an interesting discovery the other day. When the shower (in the same bathroom) was ...
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2answers
96 views

Shower in another room leaks when bath is running

I have a free-standing bath in my bedroom and a separate shower stall in an adjacent room. When we run hot water in the bath the shower head starts running-- not just a drip... more like moderate ...
0
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1answer
51 views

what allows some cold water to enter house and some to enter water heater?

Informational question: To supply hot and cold water to a house you: 1. split at the supply for hot and cold lines. Using a tee - you run one line to the house, and the other to the water heater. My ...
1
vote
1answer
392 views

energizing both elements of electric hot water heater

I'm considering using an electric hot water heater (EHWH) with upper and lower heating elements as an electric diversion load. This EHWH would be for pre-heating the water bound for the standard HWH....
1
vote
1answer
39 views

Changing hot water supply and keeping cold water supply

Repiping my master bathroom shower and sink. We have a new instant hot water heater on an addition to our house 10' away. The shower and sink now run off the water heater in garage, 100' away. I tee'...
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2answers
118 views

Why my new hot water heater performs worse than my old one?

I know a lot of posts have been made on this topic, but, I have tried everything. I wanted to move my hot water tank from the first floor of my house to the crawl space. My old unit was performing ...
0
votes
1answer
18 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" ...
1
vote
1answer
35 views

Copper reducer before hot water heater

My house copper lines are 3/4 in and my new water heater accepts 1/2 copper in a compression connection. Is there any issue with adding a 3/4 to 1/2 reducer before and after the heater?
1
vote
1answer
46 views

Why isn't my electric hot water tank producing hot water?

We just bought a trailer and had the water turned on. We have cold water coming out of hot water side in kitchen and bathroom. What could this be? Also we have good water pressure in the bathroom but ...
0
votes
2answers
533 views

What could cause my hot water to run out quickly… but only in the bath/shower?

My (London, UK) apartment building's hot water comes from a district heating system and is delivered to my apartment via a "Heat Interface Unit" within the property, owned and maintained by the energy ...
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0answers
74 views

Cloudy hot water from bathroom sink

I have 2 bathroom sinks on the 2nd floor (not in the same room). One of them produces a cloudy (almost milky) white hot water. The other was runs clear hot water. Could this be an issue? This appears ...
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0answers
170 views

Why with new hot water heater and now master shower hot water runs out fast?

We bought a new hot water heater 6 months ago and it was working great until recently. Lately, only in the master shower the hot water lasts for only a few minutes then cold. Sometimes it won't even ...
0
votes
1answer
61 views

Why my hot water goes out in less than 2 mins? [duplicate]

All the water outlets in my condo can only supply hot water for at most 2 mins and then I am left with cold water. I changed my gas water heater 2 days ago, but the problem continues. I was desperate ...
0
votes
1answer
231 views

Shower is too cold, despite cartridge setting

I have a single handle shower in my basement that is too cold in the winter. I only need a small adjustment, but I don't know if it's even possible. The "hot water stop" appears to be already set to ...
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0answers
40 views

No hot water from the hot side of the faucet for entire home

I am having hot water issue with my home. I can feel the hot water outflow pipe from the hot water heater being hot. But when I turn on the hot tap, the water turns from enventually cold. In ...
7
votes
1answer
359 views

Why does my water heater's drain line rejoin the outlet pipe?

I know very little about water heaters and plumbing. Done some minimal work, but never water heater hookup. I need to replace my 20 year old AO Smith 50 gal gas water heater in a house I've owned ...
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3answers
102 views

Hot water everywhere but the shower [closed]

Downstairs sink gets scalding hot. Bathroom sink (which is 2 ft from shower) gets scalding hot. Shower gets medium hot at best. Any non-plumber fixes here?
0
votes
1answer
84 views

Incoming water lines: Just a like to know what this is

I have a strange water line arrangement coming into the house and I would like to know what line is for what - I understand that I have cold 3/4 pipe coming in to the house and cold 3/4 pipe going to ...
0
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0answers
205 views

Cloudy hot water out of 1 sink in the whole house

There is one sink in our house that when you turn on hot water the water comes out very cloudy. It is in a upstairs bathroom and it is part of a double sink, the other works fine. Picture of the ...
1
vote
3answers
474 views

Installing a dedicated hot water recirc line and pump

I'm going to re-plumb my house. It's a 3 bed, 2 bath house. All the plumbing is on the main level, and the basement is partially finished. I'm renovating down in the basement and decided while I was ...
0
votes
1answer
49 views

Why does the hot water tank need to be drained of water in order to replace the gas valve?

I'm changing the gas valve in my hot water heater. Exactly as shown in this video. The video is queued at the point where they drain the water from the hot water tank. My question is... why? Note: ...
2
votes
1answer
3k views

Why did a failing water heater emit an electrical burning odor?

Our electric water heater seems to have burned out, but the breaker didn't flip off. My husband smelled an acrid burning smell in the house and traced it to the water heater, which is in the bathroom. ...
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2answers
69 views

Trouble gluing cap on hot water faucet

We have a kitchen sink hot water faucet that has a cap with "Hot" on it to go on the faucet. We've tried several types of glue for it, but after a few days of usage, the heat the faucet absorbs from ...
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0answers
28 views

Bled Hot Water Heat but pressure increased again

I have a oil (converted to natural gas) hot water boiler running three zones of baseboard heat. Lately I have been hearing water rushing through one of my zones (I don't hear it on the other zones). ...
2
votes
3answers
491 views

No hot water (at all) on upper floors

A few days ago, the bathrooms on the 2nd and 3rd floor of my townhouse stopped getting any hot water. Nothing comes out of the faucets when they are turned all the way to the hot side. The cold water ...
0
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1answer
331 views

How often to replace thermostatic mixing valve

To start off, I absolutely hate idea behind thermostatic mixing valve, but that's not a question. The water in my house runs hot for about 10 minutes and then turns icy cold, and I have to turn it ...
2
votes
1answer
181 views

Water radiator system has single loop instead of flow & return pipes — does this make sense?

I have a hot water heating system connected to several radiators throughout the house. While all diagrams I have seen of radiator plumbing have a separate flow and return pipe, this one has a single ...
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vote
0answers
78 views

Black stuff comes out of faucet after running hot water for 10 minutes

After running my bath tub’s hot water for about ten minutes, the faucet is ejecting 1-2 second streams of black particulates, every few minutes. This is happening consistently after running the water ...
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0answers
91 views

What is the purpose of a Pressurised hot water cylinder

Does a pressurised hot water cylinder have to deal with just higher pressure mains cold water or does it also have to cope with the heating element being heated by a sealed high pressure central ...