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Questions tagged [water-heater]

For questions generally relating to the hot-water supply system of a typical residential or commercial building, primarily regarding the heating mechanism itself (a traditional hot water heater tank, tankless heaters including "point-of-use", boilers and heat exchangers, etc).

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4answers
2k views

Can Tankless & Conventional water heaters Join forces?

Although I have properly maintained my nearly 20 yrs old 40 Gallons (150 L) Kenmore natural gas-fired water heater, However, I have been considering replacing it with a natural gas-fired tankless ...
0
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1answer
39 views

Water is too hot in electric water heater

My electric water heater all of a sudden started producing scalding hot water. Tried turning down the thermostats. No change. Replaced both thermostats. No change. Turned new thermostats way down to ...
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1answer
33 views

Should you turn off and drain gas water heater if you leave are a snowbird for 6 months

Water heater when you areA snowbird for six months
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0answers
21 views

Why momentary chemical smell after Tankless Hot Water Heater install

Why is my hot water stinky for a few seconds? This is a strong but hard to describe chemical smell like CPVC glue, not rotten eggs and not sewage or gas. I put in a new propane-fired tankless water ...
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1answer
35 views

Trouble understanding my heating system

Hi, just moved to this new place and I'm struggling getting the right temperature for hot water and heater. Could anyone help me understand the direction and source of each pipe? I guessed some of ...
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1answer
95 views

Do I really need to replace the anode rod?

Whenever I look online for information relating to anode rods in a water heater, they most often say they should be replaced regularly (4-5 years). However, every single plumber I have talked to has ...
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0answers
29 views

Installation of Liquid Propane Gas line to new Takagi Tankless Water Heater

I'm installing a new Takagi Tankless water heater and wanting to make sure I have the line plumbed to the unit correctly. I have the Main line @ 3/4" hard Pipe, 3/4" Ball valve, 3/4" Flex Line, Tee ...
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3answers
88 views

Can I replace a 30 amp breaker on my panel with a 25 amp for my new hot water heater?

My New Hot Water Heater requires a 25 amp breaker rating at the panel. I currently have a 30 amp at the breaker at the panel for the hot water heater. Should I change it to a 25 amp?
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1answer
26 views

Bedroom Install of a Takagi T-H3-DV-P - 199,000 BTU Propane Indoor Condensing Ultra-Low NOx

I'm in the process of a remodel, though I need to do it in phases. third or 4th phase down the road is to use part of the Master bedroom and make a Laundry room with some of the space. Though I ...
0
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1answer
46 views

No Hot water to Shower and Taps furthest away from hot water tank

I have this setup coming off of my hot water tank. Recently I started getting only luke warm water to the taps and shower furthest away from the water heater(#9 & #10), also sometimes my cold ...
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0answers
27 views

Relocating water heater to addition on block foundation

I'm doing a renovation in a small house I just bought. All the plumbing will be ripped out and redone and I'm hoping to take the opportunity to move the water heater and laundry. The problem is, the ...
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2answers
39 views

Water Heater - Discharge Pipe Goes Upward, How To Address

My tankless water heater (located in the basement) has the TPR valve discharge pipe traveling upwards, which is against code, and it terminates into the soil outside the house. What is the best way ...
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1answer
43 views

A water heater pressure relief valve/pipe is guided to release hot water outside of the pan (see picture). Is this installation correct?

A plumber installed the hot water pressure relief pipe to point outside the water heater pan, as shown in this picture (on the right). What could be the reason to do so? Is this recommended/proper ...
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1answer
46 views

Why is my circulator pump heating my house?

Our house had always had some latent heat coming through the vents even when they were turned off, which was causing the temperature to be pretty unbearable during the summer. One day, we heard ...
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1answer
25 views

Hot Water Water Hammer When Cutting Off Cold Supply

The house is 3 years old. This just started to happen. When you cut off any cold water supply the inlet line to the water heater knocks or water hammers. The first attempt I cut the water off at the ...
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2answers
50 views

Installing expansion tank at washing machine valve?

I own a condo with a terribly cramped water heater closet (it sits underneath the air handler with about 6 inches of clearance). I need an expansion tank, but it really will not fit in that closet (...
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0answers
22 views

Solar water heating for spa - how to / pump / etc

Dear "home improvers" I would like to create my own solar heating system for spa (intex 28456, pure spa jet & bubble octagon deluxe). This spa has its own heating system together with salt water ...
0
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2answers
73 views

Flushed water heater yesterday got a lot of sputtering right after that and today hot water is not flowing with the same pressure as before

Yesterday I decided to flush my water heater and I did the following: turn to pilot turn off cold water supply to water heater open valve and drain hot water. I noticed it was still flushing for a ...
0
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1answer
67 views

Do I need separate water heater for each gas/electric unit (for multi-family dwelling)?

I am seeing just one water heater for a multiple family home. I am not sure if the gas used in the water heater is charged for just one gas/electric unit or separately. Can a single water heater be ...
0
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2answers
118 views

Is a WiFi Gas Water Heater worth it?

First a little background, two things. I'm married to a Russian wife, which means hot water for showers are mandatory to keep the wife happy (only mostly kidding, we've been through tough times ...
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2answers
92 views

How does cold water pressure get used by a hot water heater to produce hot water pressure?

Recently I had to change a washer in the shower for my hot water tap. I couldn't find the pressure tap for the hot water on my hot water boiler. I asked a friend how to switch off the hot water ...
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1answer
30 views

Wire size for water heater

I'm installing a instant on demand water heater that requires a 220v - 40 amp circuit and would like to know what size wire is required for a 50 foot run. ??????
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2answers
58 views

Should anode rod avoid touching bottom of Water Heater?

I want to get a replacement anode rod for my water heater. I have a 40-gal tank measures 56" top-to-bottom, excluding legs. It seems the anode rods (multi-sections) come usually in 42-44" or 54". If I ...
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1answer
32 views

Recirculator pump hot water

I currently have the Watts Recirculating system, pump Model 500803, on my water heater with the bypass sensors located under two areas in the house. We have enjoyed it. The con on this is that the ...
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2answers
114 views

Is it a bad idea to tie output of hot water heater to sump pump drain?

I bought a house and I have a leaking hot water heater (appliance is from 2001). I'd say it fills up an 8 ounce cup after two hot 10-15 minute showers. I had a plumber come out and he replaced the ...
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0answers
31 views

Rinnai tankless water heater service cost

My tank-less water heater stopped working with an error code 11. I had somebody out to take a look at it. relatively quickly we went through the troubleshooting steps and concluded the flame rods/...
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1answer
47 views

Turned off gas to water heater - should water be coming in?

My water heater has a bad thermocouple and striker. I’m having to replace the entire assembly and waiting on the parts to be delivered. I noticed today that I no longer get any water from the tank ...
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0answers
21 views

How to connect a new water heater (with side T&P valve) to this existing T&P discharge tube (from water heater with top valve)?

The picture above shows an old water heater (located in detached garage) that I'd like to replace. Notice that the T&P release valve, which is on the top, connects with some piping over to a ...
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0answers
40 views

Moved into flat, cold water tank leaking, can it be removed?

Background I've moved into a flat recently and have been renovating. I'm doing all the work myself - have installed a new bathroom, new kitchen, new shower and cistern etc. and now I've realised the ...
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1answer
43 views

How were these copper pipes attached to the T&P discharge valve likely connected?

In the rental house I'm in now, the T&P release valve on the water heater is connected with copper discharge tubing which exits the garage. See this picture . The right-side of the pipe seems to ...
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3answers
120 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 ...
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1answer
52 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,...
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0answers
51 views

Can I discharge water heater condensate outdoors?

I'll be installing a condensing tankless water heater that has a condensate drain. Can I discharge this line outside instead of into sewer?
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1answer
64 views

Overflow line tied with Condensate Line

had a house inspection done and the inspector told that Irregular materials were used, I am attaching a pic. how much work is it to repair it? is it a easy fix? Thank you
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1answer
46 views

Planning to switch to a tankless water heater

I am planning to convert to a tankless water heater but have a few questions to make sure I am on the correct path. I live in a rowhouse in Philadelphia where natural gas is used for heat and my ...
2
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0answers
38 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 ...
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3answers
74 views

Should the magnesium rod be removed from a water heater if a softener is used?

Our water heater is less than 3 years old and I am starting to hear small particles bouncing around inside what the thing is heating up. Our old water heater never did this and was 22 years old both ...
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0answers
24 views

Gas Water Heating

When I turn on a cold water tap including the garden hose my instantaneous gas water heater starts up.I have turned the hot water valve off at heater and checked that ALL hot water taps have no flow ...
0
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1answer
65 views

Water Heater on/off switch

My water heater and dryer are connected to the same circuit breaker. Consequently, when the washer-dryer combo is in use the water heater (tank type) is working too and consuming electricity. Can I ...
0
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0answers
26 views

Sediment buildup in water heater from downstairs flat

I recently moved into an apartment that was built in the 60's, and can hear a "popping" noise from the bathroom wall, almost constantly. After doing some investigating, it looks to be sediment build ...
0
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1answer
43 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 ...
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2answers
58 views

Gas Water Heater and Water Shut Off

My house and my neighbors' houses are going to have our water shut off from 9:00 am to 4:30 pm this week by our Water and Wastewater District. I called the manufacturer of the water heater and also ...
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1answer
26 views

Identifying a Manual Gas Shutoff Valve for Water Heater

I've been reviewing some instructions before flushing my water heater - and one of the first instructions is to shut off the gas valve to the appliance. The trouble is, I'm just not certain enough to ...
0
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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 ...
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0answers
35 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 ...
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1answer
59 views

How to troubleshoot gas supply not making it to some appliances

I recently purchased a home and once utilities were turned on I've been having issues with certain gas appliances. Some appliances required a normal amount of time to get the gas flowing after being ...
4
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2answers
110 views

Is storing hot water over 140F a regional requirement?

It seems to be "common knowledge" that to help prevent Legionella, hot water tanks/heaters should be set at 140F. This temperature is enough to cause terrible burns and scalding so devices like ...
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0answers
4 views

Composite Scale Reducer in Britony Flexiflue can it work without it?

I have got the above that is to be replaced with a new system very soon. I don't want to pay £60 to replace the leaking one I have, any ideas on what I can do, tempory fix or do without it if the ...
0
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1answer
100 views

Can I have two different types of water heater in the same house?

I currently have an indirect fired 55 galon water tank. The house is pretty big and the former owner had a second, power vented water heater on the other side of the house. It seems he also had the ...
1
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1answer
68 views

How to clear a copper water line in the concrete pad?

I replaced a gas hot water heater. I opened the valve to fill it while the faucets were off.( The gas is not yet turned on.) Then opened the kitchen hot ,of course a blast of air then some slightly ...