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Cost to operate water heater Figure Volts Amps Watts for water heater How to wire tankless electric
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Compare 16 electric and 3 gas water heater timers Troubleshoot Rheem tankless Clean sediment out of water heater
9 ways to save with water heater
How to install recirculation system Point of use water heater
How electric water heater works Troubleshoot electric water heater Troubleshoot-gas-water-heater Troubleshoot Bosch tankless
Type 1 and type 2 surge protection surge protection
2016
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Repair Water heater valve

Gas control valve

Resource:
Troubleshoot and replace by type of gas control valves
Troubleshoot gas water heater
Troubleshoot FVIR system

How to light water heater
How to adjust temperature


Use pipe to remove gas control valve
How to replace water heater gas control valve thermostat
Do not remove valve from tank to replace Honeywell gas controls
How to replace Honeywell gas control valve
Bradford White gas water heater  Turn off gas valve

Gas shut off valve

Resource:s
Emergency steps for leaking water heater
How to install gas water heater
Water heater safety precautions

Buy ball valve
Brass Gas ball valve at Amazon
Ball valve

Ball valve is OFF when handle is perpendicular across gas or water line


All ball valves are same
Same for gas and water lines.
1/4 rotation needed to turn ON or OFF
When handle is perpendicular to line, then valve is OFF
Buy ball valve/ water
3/4" ball valve at Amazon
Brass ball valve
Buy Ball valve/ gas
Gas ball valve
TP valve     Raise TP lever

TP valve/ Aka pressure/Temperature valve

Pressure release opens when temperatures exceed 150-180 degrees
Lift and gently lower TP valve once each year

Buy TP valves:
Replacement TP valves at Amazon
Teflon tape at Amazon
Resource:
How to troubleshoot and  replace TP valve
TP valve code
Brass drain valve    Water heater drain cap  

Drain valve

Use hose cap to solve dripping drain valve
How to troubleshoot and replace drain valve

Buy:
Buy replacement brass drain valve at Amazon
Brass hose caps at Amazon
water heater ball valve
Water heater drain valve

Replace Water heater drain valve with ball valve

Easier flush and clean out
Full open position lets you insert 1/4" copper pipe flushing tool

Resources:
How to clean sediment out of water heater
How to replace drain valve
How to flush water heater/ steps3/4" ball valve at Amazon
Brass ball valve

Buy parts to make this drain valve
Dielectric nipples at Amazon
3/4" ball valve at Amazon


3/4" pipe to 3/4" garden hose
Flush tooltank rinser

Buy plastic tank rinser

Works with ball valve shown above

Buy:
Tank rinser at Amazon
Resources:
How to replace drain valve with ball valve
Water heater flush tool

Make a flush tool

Works with ball valve
36" aluminum tube or plastic tube connects to garden hose.
Remove drain valve to insert tool -or- install full-flow ball valve shown above
Tube inserts through ball valve opening.
Make tool using 3/8" flexible copper pipe
Buy:
3/4" Hose barb adapter at Amazon
Hose adapter to 1/4" compression
No-rust hose shut off at Amazon
3/8" clear hose at hardware
Hose clamp at hardware
sharkbite ball valve

Sharkbite ball valve for pex water line

Hot or cold installation
Push fitting... push pipe into fitting
Pex polybutuylene pipe is popular for some installations because it is quick and easy, reliable, not overly vulnerable to low temperatures, can be retrofit into old construction with minimal effort, can be installed in new home very quickly, and is low cost

Buy
Sharkbite ball valve at Amazon
Sharkbite water heater connection
anti-siphon valve

Anti-siphon valve/ attach to outdoor spigot

Install on each outdoor spigot. Then attach garden hose to valve.
Prevent water from being drawn into home from outdoor hose
Each time water is turned on inside home, the pressure from running water can draw water into plumbing pipe from garden hose
Never leave end of hose in a swimming pool, pond, or puddle of water

Buy:
Anti-siphon valve at Amazon
Tank pressure

Pressure gauge on drain valve

Two reasons why:
1) Low water pressure
Use pressure gauge on drain valve to test household pressure
This will indicate if pressure problem is before water heater or after
Resource:
5 Steps to determine low hot water pressure

2) Pressure over 80psi can damage water heater
Can also shorten life of plumbing fixtures, and faucet cartridges
Can shorten life of water well pump, etc

Buy:
Water pressure gauges
Safety Equipment for Professionals
Industrial and scientific Amazon
pressure gauge
Permanent pressure gauge

Install Permanent pressure gauge on cold water line

Pressure over 80 psi can damage tank and shorten life of plumbing fixtures
1/4" iron pipe thread

Buy:
Pressure gauges at Amazon
Temperature-pressure gauge
Temperature pressure gauge at Amazon
sharkbite pressure gauge
Permanent pressure gauge

Pressure gauge for Pex pipe

Pressure over 80 psi can damage tank and shorten life of plumbing fixtures

Buy:
Pressure gauges at Amazon
Sharkbite pressure gauge at Amazon
Expansion tank

Reduce pressure with expansion tank

Pressure over 80 psi can damage water heater and pipes over time

Install expansion tank anywhere on cold water line, between any check valve and water heater
Tank will allow hot water to expand water in water line preventing long-term damaging to pipes and fixtures and water heater

Water confined to a storage tank or piping system, when subjected to a temperature rise of 10F (increasing from 75 to 85),increases pressure from 50 psi to 250 psi

Buy:
Expansion tanks at Amazon

Resource:
Expansion Tank Installation pdf
Closed system / pdf

Pressure reducing valve

Pressure reducing valve

High pressure over 80psi can damage water heater and plumbing
Install expansion tank, and/or pressure reducing valve
Pressure reducing valve is installed on cold water supply line to regulate and stabilize flow pressure

Buy:
Pressure reducing valves
Pressure regulating valves at Amazon
Resource:
Watts pressure reducing valves/ pdf
Back pressure relief valve

Back-pressure relief valve

Relieves pressure when unit is heating, on plumbing systems where a check valve is required on cold water supply line. To be plumbed over open-site drain.

Buy:
Back pressure relief valves at Amazon
Probably non-existant product

Pressure increasing valve

Low pressure can cause plumbing problems.
Tankless water heater might not activate
Home might not be able to run water on upper floors.
Resource:
How to increase pressure using pressure reducing valve
main water shut off

Main household shut off valve

Open meter box. Dig down in soil on house side of meter.
Rotate valve 1/4 turn so handle is perpendicular across line.
Use water key or channel locks etc
Emergency steps to turn off leaking water heater
Leaking water heater

Buy water key at Amazon
Water keys at Amazon
water meter Household water meter
A main water meter is the Water Retailers’ approved water meter connected directly from the water main located as close as possible to the properties’ title boundary.
Approved Contractors install household Water Meters

You can install water meter on outdoor hose or other location inline, or portable on your water supply without getting city approval
Buy:
Water meter with digital output
Water meters at Amazon
water heater shut off valve

Gate valve or ball valve/ Shut off

Installed on cold side of water heater
Size 3/4"
Install on cold water side.
Open hot tap and let run for a few moments. then feel both pipes on top of water heater. Cold side will feel cooler.

Resource:
How to solder pipe
Buy:
3/4" ball valve at Amazon
Brass ball valve

Shop Amazon - Industrial and scientific
automatic water heater shut off valve

Automatic water heater shut off valve

Automatically shuts off water in case of water leak
Set detector in water heater drain pan
Plug transformer into 120Volt outlet
Lead free brass

Buy:
Water heater shut-off at Amazon
Automatic water shut off valves at Amazon
Resources:
Onsite Pro FS1NPT manual
Watts WDS 0301003 discontinued
Watts automatic shut off valve sell sheet
Watts automatic shut off valve manual
Turn off water heater

Main shut off

Emergency steps:

-Turn off water to house and turn on cold tap if pipes are leaking
-Turn off water to heater and open tub spout on hot side if water heater is leaking bad
Buy:
Water key at Amazon
Resource:
Emergency steps for leaking water heater
Delime tankless
Larger image  
Service valves

Delime tankless yearly
Tankless heat exchanger is prone to scale build-up, and must be delimed each year. Error code IL means delime.
Deliming will not restore full efficiency. Read research
Resource:
How to delime tankless water heater
Maintain water heater 2012/ pdf
Delime-tankless-water-heater.pdf
Rheem-De-lime-tankless/ pdf

Buy project materials
Tankless flushing kits
Tankless service valves
Submersible pump
Filter washers at Amazon
Washing machine hoses at Amazon

You need service valves and pipe parts, 1-2 washing machine hoses with female connection both ends, circulation pump, and find 5 gallon bucket along road, plus buy 2 gallons white vinegar at grocery store.
Only takes 45 minutes!  Assemble parts for flushing and do it each year until yer widow inherit the job.
Arern't you glad you squeezed that tankless in the closet, over the hardwood floor? What a space-saver!
Or just install ordinary tank type water heater yourself for $385
Water heater odor
Applies to gas and electric water heaters
Larger image

Read more about how to flush water heater each 6 months

Control odor by adding Hydrogen Peroxide regularly

Read more about anode odor problem at pro water heater forum
Install ball valve on Hot side so you can pour in peroxide
Hot side will allow peroxide to enter top of tank. (cold side will put peroxide at bottom)
Applies to gas and electric heaters.


Turn off power to water heater:
Let tank cool so hot does not explode out ball valve
Shut off cold water to tank.

Open bathtub hot side to release pressure.
Leave bathtub valve open until finished. This will tell you when tank has refilled and ready to apply power.

Drain 2 gallons from tank


Add 2 pints harmless Hydrogen peroxide to water heater. Let stand for 2 hours.
H2O2 is easy to flush out, and generally harmless to people. Can be used as mouthwash, read label on hydrogen peroxide bottle.
Do not use clorox.
CLOROX is NOT used for this purpose since it cannot be easily flushed out, and bleach odor can last weeks or longer coming out each tap for extended period of time.
Then drain tank to flush hydrogen peroxide. Refill completely until water is coming out of bathtub drain, then turn on water heater. Applies to gas and electric heaters.


Buy parts to make this drain valve
Di electric nipple
Ball valve at Amazon
Lead-free ball valve at Amazon
Plastic funnels at Amazon
Buy hydrogen peroxide at Grocery store or Drug store
Shop Amazon - Industrial and scientific
Backflow preventer

Backflow preventer valve

Not used on water heaters, but can be part of household plumbing
Backflow preventer is required for connecting irrigation system or sprinkler system to household water pipes. This prevents indoor water use from drawing water from sprinler pipes back into household water pipes.
Swimming pool, or outdoor ponds: If water hose is left in pool or pond or puddle of water, then water use inside home can draw pond water back through water hose and into home water pipes. Install backflow preventer 
Swing check valve

Swing check valve

One way valve: Lets water pass one direction, but not other direction
Why is this important?
Recirculation system loop can draw cold water into hot pipe causing cold flashes during shower.
Bad swing check valve can cause crossover: Crossover
Swimming pool, or outdoor ponds: If water hose is left in pool or pond or puddle of water, then water use inside home can draw this water back through water hose and into home water pipes. Install backflow preventer shown above.
Install this type check valve in horizontal position
Buy:
sharkbite check valve
Swing check valve at Amazon
Resource:
Install swing check valve
check valve

Check valve for sump pump

Not used for water heater
One way flow. Stops water from flowing other direction.

This type Check valve is installed on sump pump drain line so water does not run back into sump
This type valve is not rated for household water lines, and will break loose and cause massive water leak.
Use swing check valve shown above for household pipes
Buy:
Buy check valve at Amazon
2" PVC solvent weld check valve
Recirculation system
Crossover valve
Crossover valve

Recirculation crossover valve

Each recirculation system has one-way crossover valve
The valve comes as part of recirculation system
Take apart and clean with white vinegar
Buy:
Replacement crossover valve


Resource:
Water heater recirculation system + troubleshoot

Noisy recirculation pump:
Install air vent to keep air out of pump impeller
Take apart and clean pipes and pump with white vinegar

Larger image  

Air vent/ Eliminate air build-up in water line

Add air vent to high point on plumbing
Eliminate banging pipes caused by air inside line
Frequently found with recirculation systems so pump lasts longer, runs quieter
Required with solar installation
Buy:
Air vent/ Float vent
Resource:
Air vent .pdf
Mixing valve         Mixing valve

Mixing valve

Different temperatures for different parts of house
Very hot water for laundry room, regular Hot water for rest of house
Rotate knob to select temperature
Requires separte pluming lines to each area of house
Resources
How to save hot water using mixing valve
Installation pdf
Buy from my affiliate links:
Mixing valve kit at Amazon
Water heater mixing valves at Amazon
vacuum relief valve

Vacuum relief valve

Vacuum relief valve opens when pressure drops.
Air is admitted into line to prevent tank from collapsing
Required on solar water heater installations
Read Wiki
Buy:
Buy vacuum relief valve at Amazon
Marathon water heater connections

Marathon Vacuum relief valve

Marathon tank is non-metallic, and might be susceptible to drop in pressure in conditions where steel tank would not be affected
Resources
Review marathon water heater
Rheem Marathon parts list
Marathon troubleshoot walk-thru/ pdf
water heater valve
Heat trap nipples
Hot side and cold side heat trap nipples

Water heater valve making noise???

Might be heat trap nipples or inserts
Resources
New water heater making noise

Buy:
Pex-lined di electric nipples/ at Amazon

More links:
2-pole contactor        3-pole contactor

2-pole and 3-pole contactors

Use 2-pole for household 120Volt and 240Volt circuits.
Use 3-pole for 3-phase, or multiple household loads.
Resource
Contactors
3-phase motor wiring

General 3-phase motor wiring

All 3 wires are needed to run 3-phase motor
Contrast: 240Volt household motor requires 2 Hot wires.
Color code for 3-phase wires varies by country, and by appliacation
Motor is switched on-off by contactor or motor starter etc
Resource
What is 3-phase
How to wire 3-phase timers and contactors

3-pole contactor

Control 3-phase using contactor
Resource
How to wire 3-phase timer
3-pole contactors
Contactors and relays

Additional links

Basic household wiring
Basic water heater circuit

Figure volts amps watts for electric water heater
Test elements
Replace elements
How to wire tankless electric
How to change water heater temperature using timer
Change water heater from 240Volt to 120Volt
Replace thermostats
How to wire thermostats
How to wire water heater for off peak operation

How to twist wire
How to wire Cooper 277 pilot light switch
How to wire combo switch-outlet
How to replace 3-speed fan switch
 

How to wire dimmer
How to wire 3-way dimmer
How to wire occupancy switch
How to wire motion detector
How to wire TM811 and TM8111 switches
How to wire wall timers
How to wire box timers
How to wire off-delay timer
Wire off-delay timer
How to wire pin timers

How to wire and troubleshoot photo eyes
Reverse photoeye so it turns on in day
24 Volt photoeye
24 volt programmable timer

How to wire switches
How to add switch
How to add 3-way switch


Timer for 3-way switch
Timer for 4-way switch

How to add outlet 
How to wire 3-way switches
How to wire 4-way switches


Troubleshoot Malibu outdoor lights
Terminals 
Select and install wire connectors
Select wire size

Electrical formulas
Electricians forum
 

Electrical pages


How to wire arc fault breaker
How to wire GFCI
How to wire GFCI combo

Basic water heater circuit
How to wire water heater for 120Volt
Install old work box

How to drop wire from attic
Wire connector

How to wire 240volt outlets
How to install 3-phase timer
How to wire 3-phase outlets
How to wire 3-phase surge protector
What is 3-phase

How to wire whole house surge protector
How to wire under-counter water heater
 

See inside main breaker box
Replace breaker
Install subpanel

Fuseholder
Contactors
How to solder wires
Whole house surge protector
3-phase surge protection
Circuit breakers

Difference between 120 volt and 240 Volt
Difference between 50Hz and 60Hz
How to install electric meter on water heater
How to wire water heater thermostat
How to wire water heater with switches and timers

6x6x4 Enclosures
Intermatic timer enclosures

Convert AC water heater to DC
How to wire DC solar water heater
DC relays for solar water heater
How to add another thermostat to water heater

How many Kwh to heat water
Chart for figuring heating time for electric heater

Gas and electric water heaters

Resources:
How to install gas water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
Intermatic control centers Control centers:
+ manuals and parts


All control centers and parts

Including Z-wave
box timers Compare box timers

Control with Z-wave
programmable timer Compare programmable timers

Control water heater with programmable wall timer
Countdown timers Compare countdown timers

Control water heater with countdown timer
Compare power packs

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