Does a washing machine use up your existing hot water or heat new water?

Answer 1

as this question appears on the UK and Ireland site i will assume you are in the UK or Ireland.

in european machines they almost all now have internal heaters and are cold fill only.

Old machines may be different.

So no, the majority will not use up existing hot water.

"mark", "michael p", "fuzzy", "fluffy newborn kitten", "stretch", "answers addict" and "les" are wrong. Go into a highstreet white goods shop ( comet, currys etc ) and ask for a hot fill washing machine....they will have NONE for sale.

Answer 2

All new front-loading washing machines are connected to only cold water, and machine heats the water to the desired temperature that you've selected. Machines that are 3-years old or more will have dual outlet fittings so that it draws hot water from your immersion tank during the wash cycle, and cold water for the rinse cycle. Overall, that sort of plumbing is more expensive because re-heating an entire tank of water costs more than just a few litres that heated by the heating coils of the washing machine.

Answer 3

Depends on how the machine was plumbed in. Some machines have a hot fill facility, where they will use your stored hot water. This makes the cycle much quicker.
On these machines, it possible to install them as cold fill only, if they have a in-built water heater.
Look behind your machine (or in the cupboard beside it) if you see 2 pipes coming from the back of the machine (usually one is blue and the other red) then your machine is using your stored hot water. If there is only pipe, then the machine has a heater and is cold fill only.
Hope this helps.

Answer 4

Mrs. B.

"All new front-loading washing machines are connected to only cold water,"

no, they are not.

mine is a Whirpool and it is hooked up to both hot and cold, as are MOST front loaders..

the front loaders have a heating element in them.

they have very specific temperature requirements. if the water from the hot water line is not hot enough, the washer heats the water.

Answer 5

Most washing machines will use both. When you wash at 30 degrees, the machine will draw hot water, and cool it to the correct temperature by adding cold. When washing at 90 degress (I know it doesn't happen much) there is no way the hot water from your tank is hot enough - so the machine heats it.

Answer 6

most machines have 2 water line supply hoses (1 hot, 1 cold)

some new high-end machines will actually heat the water

* if you want to prove this ... try shutting off valve for hot water supply, then try to wash a load in hot water

Answer 7

Usually machines draw the hot water from the water heater but I've been checking out the ads in the paper and noticed some of the new front-load washers do have their own water heater built in.

Answer 8

If your machine has a hot and cold fill, it will use your normal hot water. If it is cold fill only, it will heat up the cold water to the required temperature.

Answer 9

Some models heat their own hot water, bu they were too slow for the modern world and they have phased-out. There's probably still a few models around, but most use heated water from the water heater.

Answer 10

depends on how it is plumbed in.

What it is supposed to do, is take water from your hot water system and then heat it further if it is not hot enough.

Many lazy plumbers of the "a rse hole" fraternity just connect the machine to the cold supply so it has to heat the cold water. In reality it should be connected to both hot AND cold supplies. A typical excuse would be that " you do not have enough pressure in your hot water system"