Questions about systems that produce and distribute heated water.

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8
votes
1answer
5k views

How do I fix a shower mixer so I get hot water without turning the knob all the way?

I have a single knob shower, Valley brand. Almost the entire range of the turn from off to completely hot, it is just cold water. Only in the last half inch of the turn does any hot water start mixing ...
5
votes
3answers
498 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 ...
4
votes
3answers
825 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.
4
votes
1answer
194 views

What is this plumbing “temperature regulator” called, and how do I adjust it?

I was told the below restricts/governs how much hot water can make it to my tub/shower. I'd like to know what it's called, and how I can adjust it to get hotter water. I'm attempting to twist the ...
4
votes
3answers
941 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 ...
4
votes
3answers
583 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 ...
4
votes
1answer
296 views

How can I run plumbing from house to a nearby new office 1.5m away?

I am building a new office next to the house; it is about 1.5m away. I need to run, from the house's upstairs bathroom, 1 hot, 1 cold, and radiator with return (all of which I believe are 28mm to ...
4
votes
1answer
70 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 ...
3
votes
1answer
93 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 ...
3
votes
1answer
3k 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 ...
3
votes
2answers
704 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?
3
votes
1answer
571 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, ...
3
votes
4answers
595 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 ...
3
votes
0answers
38 views

Hot water temp in shower/tub flucuates

I live in a condo that has 13 units in two buildings and am the president of the board. A few months ago we had a new water pump installed in our boiler room. Shortly after that all three units in my ...
2
votes
2answers
688 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 ...
2
votes
1answer
8k 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 ...
2
votes
2answers
597 views

How to calculate potential energy savings from using a tempering tank?

I have a boiler (oil) with integrated water heater (3.5 gallon). I don't have problems with running out of hot water but I do wonder if having a tempering tank before the boiler would save money on ...
2
votes
2answers
3k views

Can I remove the fresh air supply that is attached next to my furnace?

It looks like my gas furnace is already vented but I'm not sure. There are two white pipes from the top of the furnace that are vented outside. The furnace is a Trane XR90. We have cold winter climate ...
2
votes
2answers
2k views

How can I connect a portable propane bottle to a tankless hot water heater?

I'm looking at a tankless hot water heater (Rinnai V65EP) with a 3/4" NPT propane input. The manual says that a 1/2" propane feed is acceptable if it is relatively short. Required gas supply pressure ...
2
votes
1answer
715 views

Tankless water heater and inconsistent water temperature

We recently brought a house that was built in 1927, and much of it has been updated. The previous owners put in a tankless water heater two years ago. Our hot water is very inconsistent. When someone ...
2
votes
1answer
1k views

What would cause the water to stop when I turn a faucet to hot?

When I turn the faucet to hot, the water stops running. Valves have been checked and I have hot water everywhere else.
2
votes
0answers
50 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 ...
1
vote
3answers
2k views

Do modern washers heat the water if below cycle temp?

As my house is currently without hot water (heater broken), I am curious if my washer has a heating element to regulate the water temp if what comes out of the pipes is below the cycle required ...
1
vote
2answers
50 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 ...
1
vote
1answer
167 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
1
vote
1answer
107 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 ...
1
vote
1answer
85 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 ...
1
vote
2answers
93 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
vote
2answers
291 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 ...
1
vote
1answer
85 views

How does my geothermal heat pump heat my hot water tank/UV filter and softner

I had my heat pump replaced recently and had it hooked it up to the hot water tank so that as the pump was on, whether cooling or heating the home would also partially heat the water in the tank. My ...
1
vote
1answer
54 views

shower shock,when hot or cold water is used in other parts of house

our 2 showers, we can't run any other hot or cold water without get extreme hot or cold differentials while in the shower.bought house last year,built in 1985.
1
vote
3answers
2k 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 ...
1
vote
1answer
116 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 ...
1
vote
2answers
230 views

how to drain a single loop in one of my heating zones?

I have baseboard hot water heat. In one of my heating zones, there are three "loops". (i.e. shortly after the supply leaves the zone valve, the pipes split in three directions. These pipes then ...
1
vote
1answer
171 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 ...
1
vote
1answer
92 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
128 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 ...
1
vote
4answers
1k views

Leave the water heater on?

When I lived in France and the US, we can an electric boiler for hot water. It was "always on", probably with a thermostat. Now I live in an area where most people have a power switch that they turn ...
1
vote
1answer
386 views

Was my pressure release valve installed backwards?

I realise that this may well be beyond the scope of an SE site, but I'll give it a go nonetheless. We've recently had a leaky pressure release valve on our Megaflo hot water tank. We have no boiler ...
1
vote
1answer
806 views

Radiators don't heat up evenly, and am missing an Expansion Vessel. Do I need it?

I have a new Worcester 40CDI Regular Boiler that does not come with a built-in expansion vessel. I just discovered that the installer did not install an external expansion vessel either. For HW, I ...
1
vote
2answers
2k views

Why is noise coming from our hot water radiator even when it is off?

I own a condo and the heating is from a hot water radiator. We have a hot water radiator at the living room and there is quite a noise (some clanking but mostly like water running on a pipe) coming ...
1
vote
0answers
16 views

Heating system is heating the radiators instead of the hot water - why?

We have a heating system with a boiler, hot water cylinder and a controller to set the timers for the heating and hot water which it then switches between accordingly. Lately, it intermittently (I ...
1
vote
1answer
240 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 ...
1
vote
0answers
181 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 ...
0
votes
2answers
4k 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
votes
2answers
61 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 ...
0
votes
2answers
60 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 ...
0
votes
1answer
153 views

Hot water running out, already replaced both heating elements and both thermostats

Our hot water runs out during one not-too-long shower. By the end of the shower, I have the cold water completely off and the hot water coming out is only lukewarm. My husband already replaced both ...
0
votes
1answer
17 views

Does my hot water tank have a bad element?

I have an electric hot water tank. Recently I've been noticing that the supply of hot water has gone down drastically. It will only be really hot for a couple minutes, warm for another 10 minutes, ...
0
votes
1answer
34 views

Are the resin beads inside old water softeners flammable?

Our old water softener just broke and released all the resin beads into our hot water heater. I've been draining it but a significant amount of beads went into the drain pan under the hot water ...