Questions tagged [hot-water]
Questions about systems that produce and distribute heated water.
251
questions
0
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2answers
18 views
Why does a system boiler with hot water cylinder not use a diverter valve?
I understand that it doesn't need a diverter valve... But I was thinking, couldn't the system be more efficient with one?
For example, the central heating could run at a low temperature (35°-40°) and ...
1
vote
1answer
33 views
cheap hot water tank failure after 3 1/2 years - expected, luck, installation problem, acid water, pressure cycle?
This "6 year" hot water heater failed after 3.5 years - is it bad luck (eg normal for the $429 box store 40 gal DHW heaters and how they make money off what I expect is a pro-rated warranty?), poor ...
1
vote
1answer
42 views
No hot water after teeing to outside spigot
I recently saw an outside cold and hot water spigot on This Old House. After checking out prices, I decided I'd make my own redneck warm water spigot by bringing a hot water line close to the outlet ...
0
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0answers
13 views
How to hookup an InSinkErator hot water dispenser to a Waterstone Hot/Cold Faucet
I'm trying to figure out what to do with the 3rd connector on my InSinkErator H-CONTOUR-SS. I have a WaterStone hot/cold filtration faucet model 1400HC-SS that doesn't have a connection for that 3rd ...
2
votes
1answer
32 views
How to prevent galvanic corrosion on water tank inlet
My current hot water tank, presumably installed by a DIY former homeowner, has severe corrosion on the inlet tube and must be replaced due to a considerable leak.
Were I to DIY, how could I prevent ...
1
vote
3answers
63 views
Water heater working when flushing a toilet
I have a tankless water heater. After I finish to use hot water and I close the faucet, the water heater starts a fan and make a typical noise, it's very typical and expected. I guess it blows off ...
0
votes
2answers
89 views
Can I replace a 40A water heater breaker with a 60A breaker to prevent trips?
Double 40 amp breaker tripped as HD want work. Can I use a double 60 amp on my water heater?
1
vote
1answer
47 views
Gas hot water tank leaking - water turned off, what about gas? Repair or replace?
My water heating tank has sprung a leak - out of the top (fortunately?) Whoever installed this thing didn't do a proper job of preventing galvanic corrosion, so the tank input is corroded (irreparably,...
1
vote
3answers
99 views
Dedicated Hot Water Recirculating System Woes
Two plumbers and no remedies to why my hot water turns cold (but not as cold as the cold water rather slightly warmer). This problem began to happen gradually and it occurs at every hot water faucet/...
1
vote
1answer
34 views
Keston C36 Combi boiler - Error E37
According to the boiler manual
E37 Water pressure error - You must top up the water pressure for your system
When opening the fill loop valve to add water pressure, water flows out the exhaust ...
1
vote
2answers
30 views
After replacing a recirculating pump (and pressure regulator), shower won't run hot
We've just had a our pressure regulator replaced, and a new recirculating pump installed. All 3 showers used to get hot water reasonably quickly (15-20 seconds). Now the shower furthest from the ...
1
vote
3answers
120 views
How do I get 150F water to the dishwasher?
I have read in a maintenance manual that the ideal temperature for incoming water to a dishwasher is 150F.
In my house, the hot water heater is currently set to 135F and it cools on traveling around ...
2
votes
0answers
37 views
Corrosion due to dissimilar metals or bad ground?
I'm a 1st time home owner but experienced DIYer here. Unfortunately I have little plumbing experience. I installed a hot water recirc. pump at my hot water heater about a month ago. I did not notice ...
0
votes
1answer
36 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 ...
0
votes
1answer
34 views
How to measure electricity used by hot water heater
I am debating the effort to save on electricity costs with my electric water heater. Solar water panel heater, hybrid water heater, etc. Before I go down that path, I want to track the cost of the ...
1
vote
0answers
33 views
What size anode do I need for this tank
I have an old pressurized hot water cylinder and I am trying to change the sacrificial anode however the local plumbing stores seem to only have anodes for models they currently sell and also I'm ...
2
votes
2answers
49 views
Can I reduce hot water distribution delay with thinner tubes?
Kitchen and bathroom(s) are at the opposite sides of my house (14m).
I recently replaced and moved my hot-water-heater (electric, now thermo-dynamic) closer to the bathroom(s) in order to reduce the ...
2
votes
2answers
128 views
Cold water leaking into the hot lines?
Recently the water heater (installed upstairs) had a leak so I disconnected it and removed it. There is a ball valve shut off on the cold line into the tank - I closed it to be able to open the main ...
-1
votes
2answers
36 views
Why does the t&p valve on gas water heater open when the tank is filled?
Put a new t&p valve on my water heater and as soon as it fills up the valve opens why would this happen?
0
votes
0answers
38 views
How can I diagnose galvanic corrosion on a water pipe?
I have a newly installed indirect hot water heater and two of the pipes are showing significant amounts of corrosion.
Given that the installation is only 3 months old, I suspect that there may be ...
2
votes
0answers
244 views
Why do I have low hot water pressure in showers only?
I have 2 showers in my house. Suddenly the hot water pressure dropped in both. The cold is fine and we haven't noticed any change in the faucets in the house. What could make my hot water pressure ...
0
votes
2answers
35 views
How does hot water get circulated into an indirect fired hot water heater?
For an indirect heated hot water tank, the hot water comes from a boiler.
Why are there two output ports on my tank?
I have appended below a diagram of an HTP/Superstor tank to use as a reference:
...
0
votes
3answers
48 views
Which is cheaper? Tankless or Storage water heater?
We are planning to build a family house, 2 adult, 2 child, 100m2, eastern EU.
We got stuck that what kind of water heating should we use.
Where we use hot water?:
shower
kitchen
sink in bathroom
...
0
votes
0answers
26 views
Do I need the “flow control” component on my furnace
Context:
My furnace supplies tank-less domestic hot water to my small house. The cold water pipe going into the furnace has a "flow control" component that limits the flow to 3gpm. I understand that ...
0
votes
2answers
42 views
No electric current going into Water Heater
We bought a brand new water heater back in November. Came home last night to no hot water. Check circuit breaker and it wasn't tripped. Turned it off an on anyway. Nothing. Hit reset button on ...
2
votes
1answer
47 views
Shower hot water not getting hot enough
I left my house unattended for a number of months. Before leaving, I turned off the water to the house and drained the lines. This was during the winter. Anyway, now that I am home, I notice my ...
0
votes
3answers
84 views
How does water flow through my water heater and up to the top floor without a pump?
My house has a gas based water heater(geyser) on the outside. The plumber has connected it such that without the use of electric pump, just through pressure alone, hot water reaches the 1st and 2nd ...
5
votes
1answer
875 views
Why does shutting off cold water valve to the water heater shut down cold water in entire house?
I'm a new homeowner so maybe my understanding is off. My question is, why would turning off the cold water intake valve on the top of the heater turn off cold water to the entire house after about 12 ...
0
votes
1answer
34 views
Why don't I have hot water after shutting off the water supply for a while?
I have a 240 watt State Select 40 gallon water heater. I shut off the water supply for maybe 6 hours to replace faucet seats in the shower. I turned off wrong breaker, and 2 days later no hot water ...
0
votes
1answer
70 views
How to switch off/on a Hot Water System
I believe I have what is called a gas-boosted, solar HWS (although there is only one solar panel on the roof). On the outside of my system, apart for the valves/pipes/wires leading into and out of it, ...
1
vote
0answers
27 views
Lukewarm water in bathroom
I recently moved to a new flat. The hotwater is supplied by a electric heater located in the kitchen which is directly next to bathroom.
In the bathroom, the tap for the shower doesn’t get hot to run ...
0
votes
1answer
32 views
Iron in Hot Water Heater
My water has a lot of iron in it so I have a water softener to take care of that. The problem is I forgot to check it and it ran out of salt.
The majority of my house is fine (I have to better clean ...
0
votes
0answers
30 views
Hot water heater intake is very close to an outside faucet: how terrible is this?
My new house has an outdoor spigot which is supplied by the same copper pipe as my hot water heater. (There's no cut-off valve for the outdoor faucet individually!) Going backwards, the pipe from the ...
0
votes
0answers
21 views
Hot water comes through cold after turning off and on
I have a combi boiler providing hot water in my house. If I run the hot water (e.g. in my shower or kitchen sink) it comes through hot just fine after a couple of seconds and stays hot however long ...
0
votes
2answers
138 views
Hot water recirculation pump suggestion in home with return hot water line [closed]
We had a hot water re-circulation pump by water heater before and had it removed last December when we detected leaks around it. This is our setup:
We have a return hot water line coming back to the ...
0
votes
0answers
64 views
Cold water handle overpowers hot water
In trying to fix a leak in my shower head, I ended up replacing both the hot and cold stems for Price Pfister handles. First, I replaced the hot water stem, which seemed to reduce the leaking. But, ...
0
votes
1answer
142 views
Why would the cold feed be backfeeding hot on a hot water heater?
The cold line is "upfeeding" hot. Both of the pipes running out of the hot water heaters(dual system) are hot. When we run the hot, it gets cold again. The cold feed pipe is hot until it reaches the T ...
1
vote
0answers
157 views
electric hot water heater high limit switch repeatedly opening
The problem
I am in the southeast US and have an electric hot water heater that is 25 years old (as is the house). Two years ago, I diagnosed and successfully replaced the lower thermostat. Earlier ...
0
votes
4answers
211 views
New electric hot water heater, hot water turns luke warm after 12-15minutes of use?
Converted my oil burner to a gas burner and added an electric hot water heater. When i use the shower the hot water turns to luke warm in 12-15 minutes. It was installed by a professional plumber and ...
0
votes
1answer
25 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 ...
0
votes
1answer
22 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.
...
1
vote
3answers
79 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
96 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 ...
0
votes
1answer
111 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 ...
0
votes
3answers
197 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 ...
1
vote
1answer
90 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 ...
0
votes
1answer
102 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 ...
0
votes
1answer
1k 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
votes
1answer
69 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
votes
1answer
41 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 ...
