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These units are installed with three switches and they are labelled as heat light and fan. This gives liberty on user to turn on either light or heat lamps or just exhaust fan.

The Heat light Fan units are used all around the year and normally heat lamps are used in winter months to keep warm after getting out of shower and towelling.

There are many brands available and it is available in 2 heat lamps or four heat lamps. The units with 4 heat lamps have two switches controlling two heat lamps each.

JD Electrical & Communications can supply and install the unit or can install only if the unit is supplied by the customer. It is a must in modern homes.

Please follow this link to get more information https://www.worksafe.qld.gov.au/safetyswitches Owners of domestic rental accommodation in Queensland must have a safety switch installed in their rental properties if one is not fitted.

Landlords
If your rental property does not have a safety switch installed, you must arrange installation by a licensed electrician.

If a safety switch is not installed in your rental property you may get fines of up to $1,500.

The safety switch must be installed by a licensed electrical contractor.

Find out more about what an electrical licence looks like, and check whether your electrician is licensed.

The ceiling fans are also available with the light attachment. It normally replaces the lights in bedrooms and used as fan and light combination. The fan light together looks neater in bedrooms compared to separate light and fan.

JD Electrical and Communications can supply and install ceiling fan or ceiling fan with light. In most cases it is straight forward installation where the existing lights need replace with fan with light. We run extra cable for switching the fan and replace the existing switch with fan controller and switch on the same plate.

How do Solar Panels Work?
The basic premise of solar panels stems from the utilisation of photovoltaic cells in order to produce an electrical current through the transferring of energy from light. (Gil Knier, 2008) Select materials, usually silicon, gallium arsenide, metal chalcogenides and organometallics, exhibit the photoelectric effect. (Gelest, N.D.) The photoelectric effect is the phenomenon when electrically charged particles (photons) from radiation (light on the electromagnetic spectrum). (Erik Gregersen, N.D.) The solar panel itself consist of an array, with modules and cells. The array is the whole panel itself which consist of modules. Modules consist of a number of cells, usually 12 cells, to produce 12 volts per module.

(Source: Clean Energy Council, N.D.)
The power put back into the network can in turn generate money to be put back into the pocket of the consumer.

• How much would Solar Panels save me?

Solar is a cost-efficient method in reducing the cost of your electricity bill by offsetting the energy usage from the grid to your personal generation through solar panels. Current legislation allows for users of renewable energy to be rebated an amount dependent on their energy provider. (more information on
https://www.legislation.gov.au/Details/C2019C00061) The amount of rebate you are liable for can be found using the Australian Government EnergyMadeEasy website; https://www.energymadeeasy.gov.au/.
On average a household uses 6.1 Megawatt-hours a year (Queensland Government, 2018) which can be completely offset with a 4.0 kW system producing 16.8kWh daily in Brisbane. (Clean Energy Council) In turn this produces 6.132MWh per year.

Are Solar Panels good for the Environment?

Overall solar energy has no direct Green House Gas emissions from its energy generation, however the production of the materials of solar panels are energy intensive. (Jeremy Moss et al, 2014) Comparatively, energy generation between solar panels and fossil fuels like coal and gas are simply cleaner under solar panels with a study conducted in 2008 producing the following findings.

(Source: Akella et al, 2008)
Overall solar energy generation is almost a 10 th in terms of carbon dioxide and a much lesser fraction of sulphur dioxide and nitrogen oxides. However, as the environmental impact is largely associated with the production of solar panels, longevity of the panels decreases the environmental impacts significantly.

What is a photoelectric smoke alarm?

A Photoelectric smoke alarm contains a photo cell and a light beam that shines away from the cell. As soon as the smoke enters the test chamber, some of the light is dispersed by the smoke particles and strikes the cell, which triggers the alarm. They respond to a wide range of fires but are especially susceptible to smouldering fires and dense smoke emitted by foam-filled furnishings or burnt PVC wiring. A few advantages of photoelectric smoke alarms is that they are not as prone to cooking nuisance alarms and contain no radioactive
materials.

If a fire starts, the fumes emitted can overwhelm you. The purpose of smoke alarms is to detect smoke and provide an early warning. With interconnected alarms, the warning will be triggered no matter where you are, or where the fire starts. This is especially useful when you are asleep, as your sense of smell weakens.

Types of Photoelectric Alarms
Hardwired 240v
A hardwired smoke alarm is connected to the mains power and has a battery back-up. The battery back-up works if the power fails.

The battery back-up must work under normal operating conditions as follows:

• non-rechargeable batteries = 1 year
• rechargeable batteries = 72 hours (charged by mains power while in the alarm)

  Note that hardwired smoke alarms must only be installed by a licenced electrical contractor
  in accordance with the Queensland Electricity Safety Act.

  Battery Powered
  The battery must be non-removable and provide power to the smoke alarm for at least 10 years without being recharged.

  How do I keep my smoke alarms working?
  If cooking sets off the smoke alarm, do not disable it. Turn on the rangehood/exhaust fan, open a window or wave a handtowel near the smoke alarm until it stops beeping. Use the hush button if the smoke alarm has it. If issues persist, consider relocating the smoke alarm.

  Every month check the smoke alarm by pressing the test button. If you cannot reach the button, use a long object such as a broom handle.

  Replace the back-up battery on hardwired alarms:

  • rechargeable batteries – refer to manufacturer specifications
  • non-rechargeable – replace once every year.

  Most alarms will emit a short ‘BEEP’ when the batteries are low. This is a reminder to replace the battery.

  Smoke alarms must never be painted.