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Designing homes to conserve energy and use it efficiently, from sources that cause least environmental harm. Solid, liquid and gaseous biofuels are becoming more widely used in New Zealand, and have the potential to meet a lot more of our energy demands. In the construction sector they can...
Designing homes to conserve energy and use it efficiently, from sources that cause least environmental harm. Electrical design is subject to a range of statutory and regulatory requirements aimed at ensuring performance and safety. Power, communication and audiovisual requirements in buildings have changed rapidly in recent times and...
Designing homes to conserve energy and use it efficiently, from sources that cause least environmental harm. Water can be heated using solar energy, electricity, gas, a wetback system, or a heat pump water heater. Each has advantages and disadvantages, though in general solar and heat pump are the...
Designing homes to conserve energy and use it efficiently, from sources that cause least environmental harm. Heat pumps provide a very efficient method of heating water. On this page: Advantages and disadvantages Energy efficiency of heat pumps for water heating Heat pump configuration Key design decisions An air-to-water...
Designing homes to conserve energy and use it efficiently, from sources that cause least environmental harm. The efficiency and effectiveness of a solar water heating system will depend on the size and type of panels used, and on positioning them to maximise absorption of solar radiation. On this...
Designing homes to conserve energy and use it efficiently, from sources that cause least environmental harm. The choice between storage and continuous flow system will depend on a range of factors. In continuous flow systems, water can be heated using electricity or gas. In storage systems, the water...
Taking care with materials, equipment and work procedures and dealing with hazards. If loose materials and bare soil on site are wet by heavy rain or large amounts of water from any other source, it may become run-off, which can enter and clog waterways, drains and the stormwater...
Taking care with materials, equipment and work procedures and dealing with hazards. Solvents can have serious adverse health effects. Just how serious depends on the type, amount and frequency of exposure to the solvent, so all solvents should be considered hazardous. Common sources of solvents are LOSP treated...
Taking care with materials, equipment and work procedures and dealing with hazards. Before using a ladder, confirm that the ladder: is the safest and most effective piece of equipment for the job is in good condition is rated for industrial use is the appropriate length for the job...
Taking care with materials, equipment and work procedures and dealing with hazards. Consideration must be given to safety when working on a roof: Consider the location and provision of anchorage points for safety harness systems or safety nets. Provide a guardrail around the perimeter. Prepare the area below...