answersLogoWhite

0


Best Answer

It is the "sacrifice" part of a corrosion protection system: When two different metals are connected between them and are contacted by a electrolyte (water with dissolved ions), a small electric current is generated by them (thats how an electric battery is constructed) and one of the two metals corrodes (the anode or less noble of the metal pair) To protect an iron tank from corrosion you can connect to it a magnesium anode, in this metal pair the magnesium will corrode, thus protecting the iron from corrosion. If a copper pipe is soldered to the iron tank will produce the opposite effect, that is, as copper is more noble than iron, the anode will be the iron and it will corrode

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is an anode in a hot water cylinder and what does it do?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

A magnesium rod in a hot water tank is a?

Sacrificial anode.


Why would you not have an anode rod?

Anode rods are used in RV and home hot water heaters. Aluminum tanks are not required to have an anode rod where steel tanks usually are.


What is the anode and cathode of Baghdad's battery?

the copper cylinder(cathode) and iron rod(anode)


What is the anode in a gas water heater?

The sacrificial anode in a Hot Water Tank takes most of the rusting problems away from the tank itself, hence the word "sacrificial!" When the anode has finished its course of use, you will get rusting happening on the walls of your tank which leads to a wrecked and leaking hot water tank. Manufacturers do NOT want home owners to know about these anodes, because if everyone replaced them there would not be any hot water tanks to replace.


What does cyl stand for in a floor plan?

Hot water


Why is there a overflow pipe on top of the hot water cylinder?

This is to allow for expansion of the hot water-- otherwise the cylinder would blow up.


Hot water cylinder works?

i dont get this question?


How do you find how much propane you have left using hot water and how does it work?

By pouring hot water on a propane cylinder you are heating the metal cylinder. The liquid propane in the cylinder is cold and forms condensation on the outside of the cylinder showing the level of propane remaining in the tank much like condensation forming on a glass of ice water on a hot day.


Why does your hot water heater bubble when faucet is turned on?

Sounds like the anode is giving up the ghost or a faulty dip tube


What is the lifespan of a hot water heater?

As a rule of thumb, 10 to 15 years is the expected useful lifetime. If yours is older than that, you need to replace it before it's too late. This all depends on whether the hot water heater has been installed correctly and whether the maintenance of it has been kept up to date. A well looked after hot water heater can last for many many years. A hot water heater is the same as a car, because if you maintain your car with regular services, it will be in good running order and last for years, its the same concept with a hot water heater. A secret to those not in the know, to help your ELECTRIC hot water heaters lifespan even more, make sure that the anode is replaced every 2 years, 95% of people who own hot water heaters never replace the anode resulting in burst hot water heaters and hot water heaters which don't last very long, replacing a hot water heater is expensive, replacing the anode every two years is not. Be wise.


What are the types of Hot Water Cylinders?

There are four main types of hot water cylinders: Direct hot water cylinders. These cylinders have an immersion heater inside that heats the water directly. They are the most basic type of hot water cylinder, and they are relatively inexpensive. However, they can be inefficient, and they can take a long time to heat up the water. Indirect hot water cylinders. These cylinders use a heat exchanger to heat the water. The heat exchanger is connected to a boiler, which heats the water from the mains supply. Indirect hot water cylinders are more efficient than direct hot water cylinders, and they can heat up the water more quickly. However, they are also more expensive. Vented hot water cylinders. These cylinders are connected to a cold water tank. The cold water tank is located above the cylinder, and it provides the water that is used to heat the water in the cylinder. Vented hot water cylinders are the most common type of hot water cylinder in the UK. They are relatively inexpensive, and they are easy to install. However, they can be inefficient, and they can lose heat through the venting system. Unvented hot water cylinders. These cylinders are not connected to a cold water tank. Instead, they are connected directly to the mains water supply. Unvented hot water cylinders are more efficient than vented hot water cylinders, and they do not lose heat through the venting system. However, they are also more expensive, and they require a special type of expansion vessel. The type of hot water cylinder that is right for you will depend on your individual needs and requirements. If you are looking for an inexpensive option, then a direct hot water cylinder may be a good choice. If you are looking for an efficient option, then an indirect hot water cylinder may be a better choice. If you are concerned about losing heat, then an unvented hot water cylinder may be the best option for you.


How do you remove magnesium rod in hot water heater?

Follow Some steps for remove magnesium rod in hot water heater.1 Turn off water and fuel supply (gas or electricity) to water heater.2 Partially drain the water heater.3 Locate the anode rod on the water heater; if necessary, unscrew and lift off the cover from the top of the heater.4 Use a ratchet wrench and 1 1/16-inch deep socket to unscrew the anode rod from the heater.5 If the anode rod won't budge, slip a steel pipe onto ratchet wrench handle for extra leverage.6 Lift out and discard the old anode rod.7 Wrap Teflon tape around threads of new anode rod; insert anode rod into water heater and tighten with 1 1/16-inch socket.8 If limited space above the heater prevents the installation of a standard anode rod, install a collapsible type.9 Turn on the water and fuel supply to the water heater.alliedallcityinc.com