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Central Heating Radiator Types [type 11, type 21, type 22]

Radiators are available in three main types, detailed as follows:

Type 11 Single panel, single convector. The first digit indicates 1 panel, second digit 1 convector [ridged metal fins on back of radiator]

Type 11 Radiator

Type 11 Radiator

Type 21 Double panel, single convector. The first digit indicates 2 panels, second digit 1 convector [ridged metal fins in middle of radiator, between panels]

Type 21 Radiator

Type 21 Radiator

Type 22 Double panel, double convector. The first digit indicates 2 panels, second digit 2 convectors [ridged metal fins in middle of radiator, between panels]

Type 22 Radiator

Type 22 Radiator

Always check the manufacturers heat output data for each radiator you want to install.

It is also important to compare different radiator styles for heat output. A heated towel rail, as shown below, may look quite big – but often not too good for heating a bathroom.

Chrome Heated Towel Rail Radiator

Chrome Heated Towel Rail Radiator

Sadly heated towel rails are not sufficient to heat a bathroom. It is always worth going for a larger size towel rail, if you intend it to also heat the bathroom. Manufacturers data will confirm the design heat output. Add 25% capacity required if you are hanging towels on it. As radiators can not warm towels and heat rooms very efficiently at the same time.

Please leave a reply or email me at aim.home@gmx.com if you want any help with this post.

I have put a post together giving details of how to choose the right size of radiator for heating a room. The link https://aimhome.wordpress.com/2012/12/30/central-heating-radiator-sizing/

will take you there.

AIM – improving your world without costing the earth


Water Service Pipework Emergency Stop of Supply

During cold weather it is often the most inappropriate time for problems with pipework, taps and appliances. I visit many properties that have either damaged/defective stoptaps/stopcocks or the access to stop supply is obscured by debris in outside meter stopcocks or even fitted kitchen cupboards or heavy furniture for interior stopcocks.The picture below shows an exterior stopcock cover. This cover top may be set at surface level so only the access cover is visible. The position of the stopcock may not be too obvious. Look at the front or back of your property  for a metal or plastic cover about 6″ [150mm] square. You may have a shared supply with a neighbour or a row of properties, depending on the main supply pipework arrangements. It’s always good to check with neighbours, before you stop the supply. It will not be obvious you have a shared supply, until someone complains, after you’ve cut their water off!

Outside Stopcock cover

Outside Stopcock cover

You may have a modern water meter. If you see a round plastic cover looking like the one below

Water Meter Boundary Box

Water Meter Boundary Box

You will only see the circular plastic cover at surface level of the road or pavement.

You must take care to protect your working area, avoiding hazards to other road users and pedestrians.

The inside of the meter box or cover box may be full of water or other debris. Have plenty of rags and a large sponge handy to clear out the box, so you can see what you are doing.

The picture below shows what you may see once you’ve opened the cover.

Water Meter view from above.

Water Meter view from above.


Water Meter view from above

Water Meter view from above

Access may be difficult so investing in a stopcock key may well save time and make access much easier.

There are two types of domestic stopcock keys, as shown below.

Stopcock Key [short]

Stopcock Key [short]

Stopcock Key [long]

Stopcock Key [long]

The stopcock may be of either plastic MDPE [medium-density polyetheline] or brass construction. The pictures below show the most common types.

MPDE Stopcock

MDPE [medium-density polyetheline] Stopcock

Brass Stopcock

Brass Stopcock

It is always good idea to check your water stopcock in good weather, to avoid problems with operation in times of bad weather. If you have problems with the functioning of your water supply stopcock, contact the Company who you pay your water bill to.

This link shows a map of Water Company areas http://www.water.org.uk/home/our-members/find-water-company

This link gives contact details for UK Water Companies http://www.water.org.uk/home/our-members/list-of-companies

The Water Company will arrange a visit to rectify or replace your stopcock. During bad weather the maintenance staff are very busy attending to faults and failures. A domestic Customer may have to wait up to a week for someone from the Water Company to attend.

Don’t wait until an emergency to find out your water stopcock doesn’t work.

Please contact me at aim.home@gmx.com or telephone 07901380746 if you need any help or want to discuss issues raised in this post.

Regular maintenance and inspection is not too expensive, and may well save much more if you have problems in times of bad weather.

Water is a valuable resource that must be saved at every opportunity.

Help to save water by undertaking regular maintenance of your supply equipment.


AIM improving your world without costing the earth

Central Heating: Smart Controls to Save Money

A fully manual central heating can be very inefficient and costly to run. There are a number of measures you can take to improve efficiency and save money.

1 Time Control Clock

Many modern boilers are fitted with an integrated time control clock. Many boilers, especially those more than 5 years old do not have any built in time control.

An independent time control clock is fitted between the fused isolator switch and the electrical connection to the boiler. There are two types of control clock:

Mechanical timer clock.

The Danfoss 103 as shown below was once very popular, and still available if anyone wants one.

Danfoss 103 Mechanical Timer

Danfoss 103 Mechanical Timer

Digital RF* room thermostat.

Digital equipment is now becoming much more affordable. Prices have fallen by 50% in the last couple of years. It is now possible to buy wireless RF thermostats for under £50.00

Danfoss RF Room Thermostat

Danfoss RF Room Thermostat

* RF stands for Radio Frequency [typically 433MHz, with a working range up to 100 meters]

The items above can be combined into a fully digital timer/control/thermostat arrangement [RF programmable room thermostat] as shown below.

Danfoss Prgrammable RF Room Thermostat

Danfoss Programmable RF Room Thermostat

There are three options for the programmable functions. A RF thermostat will only be ONE of the following:

24 hour – one set of time settings will be available for all days of the week. This offers least flexibility of function/lowest cost reduction [if you like a lie in on some days, the heating will come on at the same time regardless]

5/2 day – this offers one set of times for Monday – Friday and the option of different times for Saturday – Sunday. Better than the 24 hour option, but no good if you want to alter different days.

7 day – the best option by far. The 7 day option offers the facility to set different times for each of the 7 days of the week. Fully flexible and gives the option to control heating times around your lifestyle.

The same RF technology is now available for hot water cylinders as shown below.

Danfoss RF Cylinder Thermostat

Danfoss RF Cylinder Thermostat

The standard mechanical thermostat is shown for completeness

Danfoss Mechanical Cylinder Thermostat

Danfoss Mechanical Cylinder Thermostat

The disadvantage of the mechanical setup is that it needs to be hard wired to the boiler controls. The saving in time and materials is much better if a. more expensive,  RF wireless cylinder thermostat is installed due to savings on labour charges.

The most radical and energy saving change to heating controls in recent years are the eTRV [Thermostatic Radiator Valve] and programmable TRV. These two devices offer full automation of each radiator. Before these valves were available it was a major task involving both plumbing and electrical works. at considerable cost, to create separate heating zones.

The eTRV is shown below

eTRV [Thermostatic Radiator Valve]

eTRV [Thermostatic Radiator Valve]

The eTRV is controlled by a remote device similar to a television remote control.

eTRV Remote Control Handset

eTRV Remote Control Handset

The eTRV actuator head can be fitted to many existing standard Thermostatic Radiator Valves. This makes retro-fitting a simple and cheap solution.

Check the link below for the eTRV compatibility guide


Programmable TRV.

The programmable TRV differs from the eTRV in that the time control function is fitted, individually, to each TRV actuator head. The picture below shows a programmable TRV.

Programmable TRV

Programmable TRV

These units again can be retro-fitted to many existing TRVs quickly and at little cost.

The great thing about eTRVs and programmable TRVs is that you can independently switch radiators on and off, regardless of the control settings of the boiler. An example of what can be done is as follows:

Boiler starts at 06:00 and is on until 23:00.

The upstairs TRVs are set to come on at 06:30 and go off at 08:30.

The downstairs radiators are set to come on at 07:00 and go off at 22:00

The upstairs radiators are set to come on at 21:30 and go off at 22:30

From the time settings above the boiler is in operation for 16 hours a day. However 50% of the radiators are only on for 3 hours. The heat demand from the boiler is therfore 100% for 3 hours and 50% for 13 hours.

Typical savings for a boiler consuming 60p worth of gas per hour are 3 x 60p = £1.80 and 13 x 30p = £3.90 total spend = £5.70

If standard radiator valves are installed, without intelligent controls, the same boiler demand would be 16 x 60p = £9.60 almost £4.00 more spent per day, over £27.00 per week, OVER £1400.00 PER YEAR.

With Programmable TRVs and eTRVs costing upto £15 to£40 per unit, they are not cheap. However the cost for a typical property with 3 bedrooms and with 12 radiators would be between £180.00 and £480.00. Still could be £900.00 better off in year one.

Please e-mail me or call me on 07901380746 if you need any further help or advice with heating controls.

Remember once money is spent on wasted energy, you can’t get a refund

Central Heating: S Plan and Y Plan wiring arrangements

There is often great confusion regarding the wiring of central heating systems.

The two most common are known as S Plan and Y Plan. The basic differences are the Y Plan has one three port valve supplying heating and/or hot water. The three port valve can look like a Y shape when looking at the schematic layout of pipework, as shown below.

Y-Plan-Water S-Plan-Water-300x208

The S Plan has two SEPARATE motorised valves, one for heating and one for hot water. These two valves can be independently controlled and switched. It is also possible to add further zones by adding additional thermostats and motorised valves to each circuit.

The wiring of both systems is reasonably uncomplicated if the following diagrams are followed. I have put these together with reference to most popular manufacturers instructions. Trying to mix and match different manufacturers equipment and instructions can be very confusing, and time consuming. The following diagrams are based on a standard 10 way wiring centre. I have included CPC details for all conductors for completeness.

The S Plan diagram is shown below.

S Plan Wiring Centre

The plan above includes provision for a second circulating pump. This may be the case in a larger property where pumped hot water is needed to avoid drawing off too much cold water on long pipe runs from the boiler.

The Y Plan system is less complicated as there is only one three port valve needed.

Y Plan Wiring Centre

The cost savings from installation of thermostatic and timer controls must not be under estimated. I have had Customers who have saved £20.00 PER WEEK in times of peak demand. It should cost between £125.00 and £350.00 to upgrade the heating and hot water control systems. Money well spent, and should be recovered within 12 months due to reduced gas consumption.

Please contact me if you need any further advice or have ideas to improve this article.

I have PDFs for the two wiring centre diagrams. E-mail me at aim.home@gmx.com if you would like copies.

I’ve also included a link to the Honeywell download page. The wiring guide PDF shows details of all available heating/hot water system configurations.



AIM – improving your world without costing the earth.

The Cost of Bath -v- Shower

There is a surprising difference in costs between taking a bath and taking a shower. If you pay water rates, you pay fixed charges as detailed below. The published figures are chargeable, regardless of how much water is actually used.

Type of premises




Single person household








Semi-detached houses and bungalows




Detached houses and Other household premises




However if you have a water meter fitted the cost is directly charged by the quantity of water drawn of to supply your property. There is also a cost for sewerage. This is not metered, but a simple additional cost per m³, as detailed below:

Water meter rates



Standing   Charge

Price   per m³

Standing   Charge

Fixed   charge

Price   per m³






The table above water costs £0.002458 per litre. This is the total cost of water drawn off and sewerage returned after use.

The average bath takes 150 litres to fill. A cubic meter of water contains 1000 litres. From the prices above the average bath contains 20 pence worth of water.

  • A five minute ‘high-flow’ shower uses approximately 90 litres of water which costs about 12 pence.
  • A five minute ‘standard’ shower uses approximately 50 litres of water which costs about 12 pence.

Now total costs for comparison are

Bath = 37 pence = £259.00 per year*

5 minute Shower high flow rate = 22 pence** = £154.00 per year*

5 minute Shower standard flow rate = 12 pence** = £84.00 per year*

* based on 2 instances per day for 350 days per year

**Note the shower flow rate is based on optimum 18 litres per minute. Many operate at approximately 10 litres per minute. This reduces the shower costs to 12 pence [7 pence for water and 6 pence for waste water to sewer]

Compare your costs and see if you are better off with a water meter.

Please contact me if you want any further advice or guidance.

AIM – here to help

Take control of your water don’t pour money down the drain

Save Money With Energy Efficient Curtains and Blinds

Up to 80% of heat loss in a property can be through windows and doors. Thermally efficient curtains and blinds can have a huge effect on energy efficiency and temperature levels within your home. You could fit replacement windows or double glazing. However you have to decide what you can afford and what the cost benefit will be.

Thermally efficient curtains and blinds can add 10 – 15% to the cost of your curtains. However these will improve energy efficiency by up to 40%

Thermally efficient curtains contain the following layers

medium to heavy weight interlining.

Cotton/ wool material sandwiched between the front (face) fabric of your curtains and the lining fabric.

Thermal or blackout lining fabric

Thermal lining fabric has a thin, rubberised backing to reduce heat loss.

Blackout lining has an extra acrylic layer to prevent light passing through the fabric.

English Heritage found that heavy curtains reduced the heat loss by 41% (and lowered the u-value from 4.3 to 2.5). Secondary glazing to existing sash windows can cut u-values to 1.7

The following give details of cost savings upgrading from single to double glazing.

[Based on 4p per kWh using gas central heating]

House   Type

Window   area

1 Year saving

5 year saving

10 year   saving
















These results have been generated by the Glass and Glazing Federation Energy Saving Calculator.

The link below will enable you to check out the details for your home.


This will help you decide if energy savings from installing double glazing will help you pay for the cost of installation.

We can offer advice on fitting and supply of energy efficient curtains and blinds.

Contact us; we are here to help you.

AIM – improving your world without costing the earth

LEDs Beware of Pale Imitations

LED lighting is relatively new technology. I have tried many products and can confirm price does not always guarantee quality!

Last week I spent a day at MHA lighting, UK based LED lighting design and manufacturing Company based in Atherton, near Wigan.

I was really pleased to see the passion for excellence in all products supplied. The design and manufacturing process is all undertaken on one site. Every stage of production is followed by testing. MHA can provide a 5 year guarantee because every product has been tested at least 6 times before it’s dispatched from the factory. Excellent attention to detail, a real confidence boost for the installer and end user Customer.

MHA have experience in a wide range of applications from ships to deserts, they produce electronic products to withstand the most rugged environments. All products have a ambient temperature range from -35 C to + 55 C.

A 5 Year guarantee for all products is provided because MHA lighting understand the technology and design products to last.

Check out the MHA lighting website for details of Customer testimonials. http://www.mhalighting.co.uk/

Fresh produce looks better with good quality lighting

I am offering the MHA lighting range for all relevent applications in leisure, retail and healthcare applications. I will visit your site, undertake a free of charge detailed lighting survey and talk with you to establish your needs and see what can be done to save you money.

Product range displayed to best advantage with excellent lighting

Correctly designed and installed lighting can improve product shelf life, increase Customer confidence and drive up spending levels for your business.

We can look at a range of financing options so you can have improved lighting without increasing bottom line spending.

The following tables and photos give further details of the MHA Lighting range. MHA Lighting also offer bespoke design and production services. This is excellent for the retrofit applications as it may be possible to reuse existing enclosures to hold the LED lighting modules.

Please call 07901 380746 or 01782 504503 to discuss your requirements and to arrange a free lighting survey. You can also e-mail me at ecologic@gmx.co.uk.

MHA Lighting Product Range

QuarterLite – External

MHA Lighting’s award-winning QuarterLite combines high quality, uniformly distributed light with energy savings of up to 80%.

The entire range delivers clean, bright light to create the highest levels of illumination whilst slashing energy bills and CO2 emissions.

Our patented QuarterLite technology provides a light output of more than 400 Lumens using just 4 watts and has been designed as a direct replacement for fluorescent tubes and inferior LEDs.

The QuarterLite is the perfect solution for lighting internal and external advertising signs, illuminated company names and large format billboards.

All QuarterLites are supplied with a five year guarantee.

The    benefits:


Typically uses 80% less energy than conventional   back-lit solutions.

Zero Maintenance

Reducing costs and disruption of routine   maintenance – often at height.


A useful lifetime of 60,000 hours.

Light Distribution

Uniformly distributed glare-free light which   achieves LG Standards Lux Levels.


Ghost-bands and flicker is eliminated.

Shock resistant

QuarterLites do not break or explode like   traditional fittings.

C Lite – External

MHA Lighting C70

MHA Lighting’s award-winning C Lite combines high quality, uniformly distributed light with energy savings of up to 80%.

MHA Lighting C100

The entire range delivers clean, bright light to create the highest levels of illumination whilst slashing energy bills and CO2 emissions.

MHA Lighting C140

The C Lite is the perfect solution for internal and external applications of heights ranging between 4 and 9 metres. It is a recessed behind a fascia of polycarbonate, acrylic or toughened glass and is easy to clean and maintenance free during its 60,000 hour lifespan. It is available in a range of wattage and sizes depending on the application.

External applications: Tunnels Canopies Roads Floodlighting

Internal applications: Manufacturing Warehouses Retail sheds Shopping malls Concourses.

The light is delivered in 5500 Kelvin, 65CRI for precision working but can be delivered in a variety of colours to suit your requirements. The fittings also include intelligent controls such as ambient sensor or dimmer to further maximise energy savings.

The C Lite is designed using MHA Lighting’s patented LED technology and complies with all British Standards. The range is EU Energy rated A and achieves LG standard LUX levels. It typically replaces 150-400 watts low and high bay fittings

The    benefits:


Can achieve up to 80% energy savings compared to   traditional fittings

Zero Maintenance

Reducing costs and disruption of routine   maintenance


A useful lifetime of 60,000 hours.

Light Distribution

Uniformly distributed glare-free light which   achieves LG Standards Lux Levels


C Lites are robust and do not break or explode   like traditional fittings

PSU Specifications

90-277 Volts AC DALI / DMX options available

No Heat

Perfect for air-conditioned environments or open   refrigerators


LED Type

Philips Rebel (ES)

Colour Rendering

65 CRI

Colour Temperature

Other colour temperatures are available upon   request

Product Type

Available with a glass, acrylic or polycarbonate   cover


Five to seven years depending upon operating   hours

Housing Type

Surface mounted, chain suspended, recessed or   trunking mounted

Emergency Options

Integrated emergency options available in either   standard battery pack or 110 volts AC

Output Content


Operating Temperature

-35 to +55C


Intelligent controls

Manual dimmers, PIR sensors, Photocells, voltage   optimisation, power conditioning etc.

RodLite – Internal

MHA Rodlite, the clever flourescent replacement

The RodLite GRP provides a direct low-energy LED replacement for fluorescent tubes – with all the benefits of LEDs.

The RodLite GRP’s patented LED technology creates glare-free uniformly distributed light and achieves LG Standards Lux levels – but typically uses 80% less energy. It is ideal for any internal or external application where fluorescent tubes are currently being used and is available with a variety of covers including prismatic diffusers to provide the same aesthetics as a fluorescent fitting.

For external applications such as multi-storey car parks, construction sites and subways the RodLite GRP is vandal-proof and is Ingress Protected. It is suited to heights of 2.4 to 8 meters and typically replaces 4,5,6,7 and 8 foot fluorescent tubes. The RodLite GRP will appeal to those customers who want to replace fluorescent tubes, whilst still achieving the same light output quality as well as the energy savings of LED.

RodLites can be used with power conditioning, voltage optimisation and intelligent controls such as dimmers, ambient settings and PIR sensors. The entire range is designed using MHA Lighting’s patented LED technology and complies with all British Standards. The range is EU Energy rated A and achieves LG standard LUX levels.

The    benefits:



Can achieve up to 80% energy savings compared to   traditional fittings

Zero Maintenance

Reducing costs and disruption of routine   maintenance


A useful lifetime of 60,000 hours

Light Distribution

Uniformly distributed glare-free light


Light spillage and light pollution are removed by   using reflectors.

Shock resistant

RodLites are robust and do not break or explode   like traditional fittings

PSU Specifications

90-277 Volts AC DALI / DMX options available

Thermal Management

A heat sink design for reduced heat emissions for   temperature controlled environments.


LED Type

Philips Rebel (ES)

Colour Rendering

80 CRI as standard for internal applications and   65CRI as standard for external applications

Colour Temperature

3500 / 4000 / 4500 for internal applications and   5000 / 5500 for external applications

Product Type

Metallic, Acrylic and Polycarbonate


Five to seven years depending upon operating   hours

Housing Type

Surface Mounted, Chain Suspended, Recessed,   Retrofit, Trunking Mounted

Ingress Protection

IP66 available upon request

Emergency Options

Integrated emergency options available in either   standard battery pack or 110 volts AC (to work with a back-up generator   system)

Output Content


Operating Temperature

-35 to +55C


Retrofit design

This uses the existing housing and facia

Complete Unit

Identical to the Retrofit product but is recessed   behind its own cover and uses its own mounting brackets

Intelligent Controls

Manual dimmers, clocks, PIR sensors, Photocells,   voltage optimisation, power conditioning etc

Product   Code

LEDs Fitted


Luminous Flux

Lumen Output

[including inefficiencies]

C70   – C100 600mm x 600mm x 135mm


60/120 lumen


7200 lumens

6120 lumens


70/120 lumen


8400 lumens

7140 lumens


80/120 lumen


9600 lumens

7968 lumens


90/120 lumen


10800 lumens

8640 lumens

C140   1200mm x 600mm x 135mm


120/120 lumen


14400 lumens

11952 lumens

Product   Code

LEDs Fitted


Luminous Flux

Lumen Output

[including inefficiencies]

600mm   x 600mm x 75mm

TiLite   20

16/100 lumen


1920 lumens

1327 lumens

TiLite   30

24/100 lumen


2400 lumens

2017 lumens

1200mm   x 600mm x 75mm

Double   TiLite 30

24/100 lumen


2400 lumens

2017 lumens

Double   TiLite 60

48/100 lumen


4800 lumens

4034 lumens

Product   Code

LEDs Fitted


Luminous Flux

Lumen Output

[including inefficiencies]

Rodlite   16

16/120 lumen


1920 lumens

1656 lumens

Rodlite   20

20/120 lumen


2400 lumens

1999 lumens

Rodlite   GRP 24

24/120 lumen


2880 lumens

2448 lumens

Rodlite   GRP 30

30/120 lumen


3600 lumens

3139 lumens

Rodlite   40

40/120 lumen


4800 lumens

3984 lumens

Rodlite   30

48/120 lumen


5760 lumens

4608 lumens

Cheap Lamps May Not Be So Cheap

GU10 Halogen

The best energy saving measure is to switch it off. However we need lighting for modern living and safety reasons.

Commercial electricity costs between 8 pence and 11 pence per kilowatt hour [kWh]

Domestic electricity costs between 11 pence and 16 pence per kilowatt hour [kWh]


Looking at GU10 lamps the following cost comparisons can be made

Lamp   Purchase Cost Cost Wattage Cost per 100   hours
GU10 Halogen £0.70 50 £6.50
GU10 Compact   Flourescent £6.50 11 £1.43
GU 10 LED £12.00 7 £0.91
Lamp Running [cost per year] 3 hours per day 6 hours per day 9 hours per day
GU10 Halogen £7.12 £14.24 £21.35
GU10 Compact   Flourescent £1.57 £3.13 £4.70
GU 10 LED £1.00 £1.99 £2.99

GU10 lamps are very popular and can be a costly purchase if the running time in use is not taken into account.


Looking at the extreme case of nine hours use per day:

The GU10 halogen lamp costs 70 pence to purchase but £21.35 to run. Total annual cost £22.05

The GU10 LED costs £12.00 to purchase but just £2.99 to run. Total annual cost £14.99

The increased purchase cost per lamp gives a year end saving of £7.00 per lamp. After year 1 the saving increases to over £18.00 per year, per lamp as the purchase cost has been covered in year one.

There are many examples of inefficient lighting in daily use. Please contact us on 01782 504503 or 07901 380746 to discuss your requirements. You can also e-mail aim.home@gmx.com to ask any questions or arrange a free survey of your property.

Home Utility Usage Explained.

We will look through your last two years utility bills [gas/oil, electricity & water] to check how much energy your property uses and see what can be done to cut your bills. We will compare what was spent in summer and winter to identify trends and see what opportunities there are to save you money.

We will compare your costs against an average for your house size, type and location. This will give an indication of how your home compares to the average and importantly what can be done to save you money.

We aim to save you money without you changing anything you do. However once you know how much your electricity costs every time you switch on a light or boil the kettle. You may choose to change what you do and save even more.

You will be surprised at the savings that can be made by making a few changes to how you use utilities in your home. We have an extensive range of inexpensive equipment that can save you much more than you think.

We want to end fuel poverty for everyone. We cannot improve your income but we can definitely make what you have, go further.

Households are considered to be in ‘fuel poverty’ if they would have to spend more than 10% of their household income on fuel to keep their home in a ‘satisfactory’ condition. Satisfactory is defined as maintaining living areas at 21 degrees centigrade with 18 degrees centigrade in the other occupied rooms.

Gas consumption is generally governed by the size of property.

Number of bedrooms in house

Average gas consumption per year (kWh)

Cost per year [2012]

based on 4p per kWh

Cost per year [2017]

based on 4p per kWh

+ expected 60% increase in retail gas prices

















5 or more

Add 2500 kWh per room


per room


per room

Electric energy consumption is generally governed by the number of occupants and time spent in the property. Average electricity consumption levels are detailed in the table below.


Consumption kWh


[£0.135 p kWh]

Cost per year [2017]

Based on £0.135 p kWh

+ expected 60% increase in retail electricity prices

Single person

3100 kWh



Working couple

4200 kWh



Family + 2 children

5500 kWh



Each additional person

750 kWh



AIM – Improving your world without costing the earth

Making the Most of Your Home Lighting

We will check your installed lighting and offer advice on fitting energy-saving lamps. We will compare prices and running costs to offer you options for replacement or upgrade of your home lighting. We want to make your home brighter, without breaking the bank.

There are many new energy-saving lamps available. LED lamps are the latest and most energy-efficient lights available. You can have the same level of brightness at the flick of a switch for up to 90% less than the cost of existing lighting equipment. We will compare costs of installation and running for all available lighting types. You can then choose what best suits your finances and requirements for future use.

We offer a lighting design service and can bring sample light fitting and lamps so you can see how they will look and work in your home.

With the correct matching of low energy lamps to your requirements can cut energy consumption by up to 90%. That turns into a massive saving on your electricity bills. The added bonus is your savings will increase as energy prices raise in the future.

AIM – Improving your world without costing the earth.

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