Questions about systems that produce and distribute heated water.

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1answer
23 views

How hot should my hot water heater vent get?

My gas hot water heater's flue/vent is very hot to the touch. Is that normal? How hot should it get?
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2answers
32 views

Need help understanding gas water heater

I just bought a house and it have a gas water heater. I need to know what is the water shut off valve to shut down water in the entire house. Also if you can help me label any of the other knob (which ...
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3answers
51 views

How should I install a new water heater?

I have recently shifted to San Diego. I am planning to install my own water heater. Can anyone guide me on below questions: Should I place my water heater next to furnace? Should I have a common ...
2
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1answer
68 views

Dropped Item in hot water heater

When I was redoing the plumbing to my hot water heater I accidentally dropped a pen cap down the vent stack/flu. Will this cause any problems? Like melting or catching on fire? Its going to take a ...
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0answers
19 views

Do I need to replace the thermal expansion tank when replacing a water heater?

I'm considering replacing my water heater. My existing heater has an expansion tank attached to the top; should I look into replacing that at the same time or is the life expectancy on those longer?
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0answers
18 views

Low hot water pressure from cylinder

I have a flat with a cold water tank in the loft space, which feeds into an indirect (coil) heated cylinder in my airing cupboard. Hot water pressure has never been great, but acceptable. A couple of ...
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1answer
40 views

I have an oil burning furnace and my hot water only last 2 minutes. Hard to take a shower

I have an oil burning furnace and my hot water only lasts about 2 minutes, making it hard to take a shower. I'm not sure what the make and model is. I had hot water that would last a long time, had ...
1
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2answers
42 views

Can I sink a hot water copper pipe into the ground and keep the heating functionality

we are remodeling a our kitchen and the hot water baseboard heating is in the way. We had two ideas. 1. we let the baseboard heating run under the cabinets 2. we cut open the floor and drop the ...
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1answer
38 views

Do you size a DHW expansion tank to incoming pressure or pressure after PRV?

Thinking of adding a pressure reducing valve (PRV) to reduce my home's water pressure. I understand that I'd need to add an expansion tank to the incoming cold water line of the domestic hot water ...
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1answer
86 views

Will keeping the hot water running by accident cause any damage to the hot water heater

The hot water was left running over night about 6 hours in my bathroom sink Would that have caused any damage to the hot water heater
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0answers
33 views

Plumbing gravity fed water to unvented hot water cylinder?

I'm thinking of installing a point of use mini hot water cylinder into my laundry room. Something ike this: ...
5
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3answers
400 views

What type of hose should be used when flushing a water heater?

I know that a hot water heater should be flushed yearly to mitigate sediment buildup. What kind of hose should be used? Is a simple garden hose sufficient, or will the hot water melt or damage the ...
1
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1answer
77 views

How can I check my hot water heater temperature? Isn't 120 degrees cold?

I'm trying to test the temperature of the hot water coming out of my hot water heater but I'm very confused. Can I use a meat thermometer or what should I be using? Also, just to make sure my ...
2
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0answers
41 views

Could the diverter valve be causing water to get cold quickly?

I recently finished a bathroom renovation. Went to take my first shower in the new surround and hot water only lasted about 15 mins. For the remainder the water was lukewarm. The new shower has a ...
4
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3answers
813 views

Should I be calling a plumber or someone from my water supply company to test for contaminents in my water?

I have one bathroom where the hot shower water has a sulfur-like odor to it on most days and I'd like to have someone come and check it out but I'm not positive on who to call.
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4answers
144 views

Should I use a timer or motion sensor in my hot water recirculation system?

I want to get a hot water recirculation line added to a house. plumber is proposing a timer to turn on/off the pump. I'm thinking a motion sensor method would be better. are these even common and how ...
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1answer
90 views

how do you manually turn on the gas to your house?

During an account switch our gas got turned off. The account is straight now but national grid goes on coffee break from 12am sat till 7am monday and for us, enough is enough. 3 family 3 story ...
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0answers
60 views

Vaillant ecotec 28 boiler pressure problem

I have a Vaillant ecotec pro 28 boiler and the pressure is too high when the heating or hot water is on. It flashes at between 3.2 and 4 bar. After searching online the suggestions were to vent any ...
2
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0answers
30 views

Very low hot water pressure entire house

Setup: Electric 53 Gallon Heater, installed in 2014 by previous owners. Location: Tampa bay, Florida, Home built in 1961, typical cinder block house. WE purchase the home in December and all has ...
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0answers
27 views

Why would a shower pump turn on when not required?

In my long loft I have two shower pumps and two hot water cylinders. The pump/tank on the far end of the loft is for 1 bathroom and the pump/tank on the near end is for another bathroom. After ...
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3answers
680 views

Why does my utility sink faucet vibrate and pound loudly?

I have a water faucet in my utility room that is about 10 feet from the water heater. It is the only faucet in my house that makes any noise, but when I turn the hot water on even a little bit it will ...
0
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2answers
150 views

Is my water heater installed properly?

Why do all 3 pipes..the hot, the cold, and the over flow valve run hot water. I can tell by the touch. the overflow which I'm used to having a free flowing tube attached to a pan is connected to a ...
0
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2answers
78 views

How can I adjust the temperature of my hot water?

I live in California and the winter has been a lot warmer than expected. I would like to decrease the water temperature in my home to try to save money and conserve energy. How do I do this?
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1answer
52 views

Why when I turn the one knob kitchen Facet from running cold water to hot water does the water stop?

We just got home from a weekend away. We actually dropped the house temperature while we were away from 70 C to 58 C (outside it was actually the coldest its been all season (-30 C) When we got home ...
3
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1answer
341 views

Why does my shower keep alternating between freezing and boiling by itself?

A little while ago our totally fine bath/shower tap unit broke in our bath. Our landlord's plumber installed a new one and since then we've had big problems. Steps to reproduce: We get in the shower, ...
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1answer
163 views

Is it possible to relocate my water heater?

I'm planning a complete refit of my bathroom, hopefully converting to a wet room, and I just wanted to get some idea of my options. The bathroom is (sadly) very small, around 1.7m x 2.3m. This is not ...
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1answer
72 views

What to do when the cold water valve on the water heater is welded on?

Our hot water seems to be running out faster than usual, and thanks to this site, we were guessing that we probably have a broken dip tube in our gas water heater. Unfortunately, someone in the past ...
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0answers
108 views

How to prevent sudden changes in water temperature (shower)?

I have an apartment in an older building. The boiler apparently was recently replaced by the building manager in the past few years, but every time I take a shower, the temperature changes are pretty ...
0
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1answer
100 views

Why is cold water coming out of my HW OUT-TAKE pipe?

I'm replacing our water heater. I disconnected the cold intake and hot out-take. I'm replacing the valve on the cold intake. I got to the point where I had both the cold in and hot out ...
2
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2answers
405 views

Code for elevating water heater in garages?

A gas/propane water heater in a garage is elevated. This is to ensure the open flame (at the bottom) is above a certain height (?) to avoid any combustible fuels in the garage from igniting. This all ...
2
votes
2answers
295 views

Would upgrading hot water radiator heating result in much better efficiency?

My wife and I are thinking about buying a funky old house where we live, in southern Ontario, and trying to prioritize upgrades. There's a lot of knob and tube to replace -- top priority -- and some ...
1
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1answer
106 views

How can I reset my Baxi Combi Duo-Tec HE boiler after a gas supply fault error?

My boiler is giving me some real problems, for whatever reason, it's not resetting as it should. I ran out of gas last night and since ice put some on and tried to reset, it still thinks there is a ...
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2answers
76 views

Hot water stops running intermittently

When I run the hot water to the bathroom sink, as soon as the water starts to heat up, the tap just stops, and I have to give the top bit a few more turns to get it flowing again. It will then usually ...
4
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3answers
338 views

Fast hot water - tankless heater as backup or recirculator

My master bathroom is the farthest from my electric water heater (traditional with a tank) on the other side of the house. All other faucets are much closer and receive quick hot water. During the ...
0
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1answer
34 views

Should I turn off my leaking hot water tank in winter?

Just noticed that the upstairs hot water tank is firing, and there is a bunch of water on the basement floor. (This is a duplex, and no one is living upstairs right now.) So my first thought was just ...
0
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0answers
32 views

my bath has cold water but kitchen has hot water at the same time how is it possible?

we live in a 7 flat building with a basement for hot water and warming radiators. Sometimes water of kitchen (hot pipe) is very hot and water of shower (hot pipe) is very cold and I wonder why this ...
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0answers
113 views

Why doesn't the hot water work but the central heating does?

We have a gas fired boiler (which works). There's no problem with the central heating. Both the hot water and central heating valves actuate automatically when they're selected on the heating ...
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2answers
79 views

Electric water heater leaks around the top, how do I fix it?

My water heater is leaking from the top around the copper fittings. It seems to be filled to capacity. Will adjusting my pressure relief valve stop my water heater from leaking? I turned the main ...
1
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1answer
75 views

Electric water boiler .. how is the system supposed to work? (UK)

I'm not from the UK and am used to water being heated on-demand by a gas heater. Having recently moved to London, the flat has electrical heating and I cannot figure out how I'm supposed to set this ...
1
vote
1answer
96 views

water running but wont run hot through the kitchen only

we have hot water in all other parts of the house, but not in the kitchen? the water will come through cold and not become hot. If we turn the laundry hot water on, it will turn the kitchen hot water ...
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2answers
58 views

Four family home with community washers and dryers

I recently bought a four family property. I wanted to provide washers and dryers for my tents, 1 set per two units. However, I have run into an interesting dilemma. People want hot water on the ...
1
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2answers
169 views

I live in student housing and my shower doesn't get hot enough. What can I do?

I'm sorry if this isn't the right forum in which to discuss this, but I'm at the end of my rope and don't know where else to get advice. I'm living in a completely new building that was just finished ...
3
votes
1answer
2k views

How long should the hot water last during a shower?

Given a 40 gallon natural gas water heater, and a shower head with a flow rate of 2.5 gallons per minute. How long should the shower be able to maintain 105°F water temperature? Assume the average ...
0
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1answer
214 views

Which is better indirect or tankless hotwater heater

I am in the process of getting my boiler and hot water heater replaced. One company gave me a quote for a Weil McLain boiler and indirect hot water heater. Another company gave me a quote for a bosh ...
0
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2answers
55 views

Why does faucet work one day and not the next?

This American Standard faucet worked yesterday. But today, water barely trickles from it. I can rotate it just fine and when I rotate it shut, the trickle stops. My gut feeling is that it catches in ...
0
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2answers
1k views

Using PEX for a water heating system

I am replacing my existing faucet plumbing with red / blue PEX all over the house. Everything that goes to the sink, dishwasher, washer, bathroom sink and so on will be color coded and installed ...
0
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1answer
105 views

How to measure water pump pressure in a spa heating system?

Short version (TL;DR): how can I measure the output pressure of a water pump in a spa heating system and verify that it is within the gas heater input pressure specs? The Whole Story I'm trying to ...
0
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3answers
881 views

Cold water entering hot water circuit?

I'm having a bizarre problem. At least it's bizarre to me. I'm repacking a HW faucet connected to our washing machine. To do so, I turned off the HW heater, and then the valve on top of the HW ...
2
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2answers
369 views

Do hot water tanks have to be in the drain pan

I bought a new hot water tank and had it installed by a plumber. It didn't fit in the existing drain pan, so he put it on top of the pan. Is this safe?
1
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1answer
89 views

No hot water even if heating elements work (solar/boiler combination)

I've got following setup for heating water: boiler solar panel on the roof The overall setup is simple - the cold water enters the system and goes first through the solar panel and then through ...