'Your fridge is the most expensive item in your house to run'

FreeBear

Kernel_Sanders wrote: »

Don't CH pumps use about the same number of Watts but with a much more frequent duty cycle?

A typical CH pump is rated at between 60W to 80W.

Benight

coffeehound wrote: »

What's the betting the numbers relate to American homes and appliances. Just looking on Sears website, even a modern U.S. large fridge-freezer uses 715 kWh a year. Older ones must be horrific!

It seems to be based on this graphic


So definitely not the typical UK home.

Note that the washing machine & tumble dryer are in the bathroom

So that may explain the absence of an electric kettle too.

Mind you, there are so many errors in that graphic, it's hard to know where to start.

e.g. the electric oven in the energy-efficient home is claimed to use 150kWh per year costing £23.21, whereas in the traditional home, it uses the same 150kWh per year but seems to cost £84.93

If you follow the guides to the various appliances, the guide to the induction/ceramic hob points to the washing machine, whereas the washing machine guide points to the hob

The taps to the kitchen sink are closest to the user, rather than the wall, so hindering user access to the sink. If you can find out where in the world that have that crazy design, it may give you more clues to where this is actually based upon.

Benight

Gerry1 wrote: »

You thought that your heating system was the most expensive item that consumes energy, closely followed by your immersion heater, tumble dryer, kettle etc?

Well, it turns out that we've all been hopelessly wrong !

According to Gulf, it's the fridge ! They think It consumes around one-third of the total energy in your household...

Whilst the article refers to "energy", it means "electricity", as the article refers to the following:

It's not easy to estimate how much energy a household uses because it depends on many different factors:

• how many people are in the house,
• how well insulated your home is,
• how many appliances you use and how much time you spend at home.

Low consumption is estimated being 1,900kWh-2,500kWh; medium consumption estimated being 3,100kWh-4,200kWh; high consumption 4,600kWh-7,100kWh.

Those figures quotes are the current TDCVs published by Ofgem for electricity.

If you look at the graphic, there appears to be some sort of air grill high up in the internal wall of the bedroom and lounge (and external wall of the kitchen)

That probably indicates this property is heated by warm air heating, so not electric.
(Perhaps the kitchen vent is an extractor fan?)

Gerry1

They're certainly very strange households, each having the hob in the bathroom.

However, it's doubtful whether the Induction Hob would need to be switched on very often. You'd just place your pots and pans on top of the 200kW tumble dryer ! Perhaps that's why it's in the bathroom - when the clothes all catch fire, you can throw them into a bath full of water.

GS..

Fridges don't use that much electricity but it does under pin my preference for economy seven which means we pay around third of the rubbing cost for around a third of the time.
Ummm we're just moving into a new build next week, can we still get economy 7 tariffs?

Kernel_Sanders

How can one tumble dryer use two-and-a-half times the electricity of another if it is the same wattage? If it's not, then they aren't comparing like with like, nor are they taking account of the fact that the high-powered one will be operating for a shorter period.

Unless the much more efficient one is a Fischer tumble dryer, of course....

Talldave

GS.. wrote: »

Fridges don't use that much electricity but it does under pin my preference for economy seven which means we pay around third of the rubbing cost for around a third of the time.
Ummm we're just moving into a new build next week, can we still get economy 7 tariffs?

They're referring to a fridge freezer and using the example of an older C rated model vs a new A+ model.

Kernel_Sanders wrote: »

How can one tumble dryer use two-and-a-half times the electricity of another if it is the same wattage? If it's not, then they aren't comparing like with like, nor are they taking account of the fact that the high-powered one will be operating for a shorter period.

Unless the much more efficient one is a Fischer tumble dryer, of course....

Because they're comparing a C rated appliance with an A+++ one.

Kernel_Sanders

You sound like a Fischer salesman!
A kW of heat is the same in any tumble dryer, so the only way the efficiency can vary is due to to the rotation of the drum and the insulation of the cabinet. Those inefficiencies will increase power consumption by a fraction, not 150%!

Benight

- based on electrical usage in 2014

Cold appliances (basically refrigeration) top the list of uses, followed by lighting, consumer electronics, cooking and wet appliances (washing mostly).

Source: https://www.ovoenergy.com/guides/energy-guides/how-much-electricity-does-a-home-use.html

Talldave

Kernel_Sanders wrote: »

You sound like a Fischer salesman!
A kW of heat is the same in any tumble dryer, so the only way the efficiency can vary is due to to the rotation of the drum and the insulation of the cabinet. Those inefficiencies will increase power consumption by a fraction, not 150%!

A tumble drier extracts moisture from clothes. It's not a room heater, so the "a kW is a kW" argument is irrelevant.


Energy efficiency varies by technology used to dry - eg: vented vs condenser vs heat pump. That's why there are driers with energy ratings from C to A+++, with price variations reflecting the energy rating.

What you're saying is that all tumble driers ever manufactured have the same energy rating, which is clearly not the case.