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#TuesdayTips: Energy efficiency myth busting

Posted 7 March 2017 by Ben Salisbury

You may think your are eco-aware but with so many myths surrounding how to keep your home energy efficient and heating costs down, what is true and false?

Households could be wasting hundreds of pounds a year in energy bills through a lack of basic knowledge about energy efficiency, according to new research from Anglian Home Improvements.

The poll of 1,000 adults looked into how energy efficient people are and revealed how a lack of knowledge is costing the nation’s homeowners money.

The internet is saturated with energy-saving tricks, many of which are completely false. We’re here to dispel the myths, and highlight the few gems that actually are speaking the truth.

Electric is cheaper at night

Many people think running appliances at night is cheaper due to demand being considerably lower than it is throughout the day. There is, in fact, a glimmer of truth in this tip but for the majority of people it really won’t make a difference.

If you are on an Economy 7 or 10 tariff, your electricity provider will charge you according to demand. With less people active at night, it is actually cheaper for you to do your washing later in the evening. However, every other tariff is charged equally no matter what the time of the day.

Verdict: Partly True

Turning up the thermostat will heat up your home quicker

It’s a common misconception that cranking up the temperature will make a room heat up faster.

Of course, the higher the temperature the warmer the room will eventually become but a higher temperature will not increase the speed at which heat is distributed. No matter what, it will take the same amount of time to heat the same room. The only way to speed up this process is to improve your home’s insulation.

Verdict: False

Painting radiators black makes them more efficient

Darker objects are known for being better at absorbing, and then emitting, heat. With science behind this, many people assume painting a radiator black will increase its efficiency.

This would be true if radiators actually transferred most of their heat through radiation. However, despite their misleading name, radiators actually transfer heat through convection, meaning heat is transmitted by a mass motion of fluids – colour has nothing to do with it.

Verdict: False

Placing tin foil behind a radiator can conserve heat

With reflective properties, placing tin foil behind a radiator can conserve heat. Specialised radiator foil can be purchased, but ordinary tin foil works just as well.

Heat often escapes at the back of a radiator, being lost into the wall. Placing tin foil here prevents this, forcing the heat back into the room.

Verdict: True

Electric can still be consumed even when devices aren’t in use

We all know that we shouldn’t leave the TV on standby, but many of us think that not using the microwave or pressing the off button on a PlayStation is enough to stop energy from being used.

Often referred to as vampire power, energy can still be drained by appliances when they’re ‘turned off’ or not in use. Even when a device is completely detached from the power source, for example disconnecting a phone from a phone charger, power can still be drained by the charger.

Verdict: True

Solar panels don’t produce energy on a cloudy day

If you’re considering installing solar panels in your home, you might have heard the rumour that they can’t generate energy on a cloudy day. If this was the case, it’s safe to say they wouldn’t be very useful at all with our gloomy British weather!

Solar panels are most effective when the sun is shining, but they are still able to produce energy on a cloudy or rainy day. Sunlight can still reach the panels, and particular models are designed to absorb a broader range of light, such as UV and infrared light which are present on cloudy days.

Verdict: False

It’s better to leave the lights on, than turn them off and on continuously

A myth that seems to circulate to this day, many believe that it’s better to leave a light on if you’re leaving a room for a short period of time rather than switch it off and on again. People assume that a surge of energy is required to turn on lights, making it more cost-efficient to simply leave them on.

All of this is completely false, no additional energy surge is required. So there’s really no excuse – don’t forget to switch off the lights whenever you’re not in the room!

Verdict: False

With all of those energy myths completely busted, you can be confident that your home isn’t draining unnecessary energy.

Melanie Mcdonald, Head of PR and Brand Marketing at Anglian Home Improvements, said: “I think most of us would describe ourselves as being energy efficient, but it’s easy to forget all the little habits - like leaving the lights on when we leave a room - can lead to higher energy bills.

“The survey showed that energy efficiency is a big deciding factor in the house buying process, so we would advise anyone thinking of selling their home in the near future to focus on the efficiency of their property as well as the decor.

“Homeowners can get instant results on their energy savings by improving the quality of their windows. Switching from single glazing to double glazed windows will save money and significantly reduce heat loss. Even replacing older double glazed windows to modern A rated double glazed windows will make a difference.”

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