HVAC&R Nation | Page 25

Around the nation  7 8 9 highlighting the word “Restrictions Apply” in red font and will apply to participants in abbreviated Certificate II courses. 40m² room. A gas room heater came in at $250, while the cheap and ubiquitous plug-in electric oil heater was more than three times as much at $825. “This is being done to emphasise that the licence holder is qualified to provide specific services under that licence,” says ARC. “The entitlements of the licence will continue to be listed on the card.” Sustainability Victoria CEO Stan Krpan says there’s a number of simple ways to help reduce heating costs. In the case of the Restricted Split Systems Installation and Decommissioning licence, this would be: RESTRICTED SPLIT SYSTEMS (1): Install/decommission Split Systems, Hot Water & Swimming Pool Heat Pumps up to 18KW (Must not repair). “This modification will provide an added level of transparency for consumers, and clarity for licensed technicians around what they can and can’t do as holders of a specific ARCTick licence,” says ARC.  n 7 HEATING EFFICIENCY BATTLE HEATS UP Sustainability Victoria has published a new report suggesting that gas boilers circulating hot water through radiator panels are the cheapest and most energy efficient form of home heating. The report provided a direct comparison between gas and electric heating systems for heating a house or just one room. Based on an average five months at six hours a day, the data suggested that heating a house up to about 170m² via gas-fired hydronics costs $915 per year. Next best was gas-ducted heating, which costs $970. Ducted reverse-cycle air conditioning was the best of two electric options at $1120 per year. Least cost-effective options were heated slabs, estimated to cost $1400 per year. However, electricity rated strongly in single-room heating, with a reverse cycle air conditioner costing $230 per year to heat a “Some simple and quick tips to save on energy include closing doors to areas of your home that you are not using, wearing warmer clothing, using the thermostat correctly and turning off your heater overnight,” says Krpan. “A small fan heater may be cheap to purchase but will end up costing you in the long run. When purchasing a new heater, check the energy rating labels. The more stars, the more efficient the unit and the lower its running costs will be. Super-efficient models can have a rating of 7 to 10 stars.”  n 8 HOT ACs RECALLED Several leading Australian retailers have been forced to recall a number of Dimplex portable air conditioners after overheating concerns were discovered. The models in question are the GDC18RWA and GDC18RBA, manufactured in 2009. The units were sold throughout Australia by 16 retailers including Harvey Norman, Good Guys, Betta Electrical, Bi Rite, Retravision, Radio Rentals, Clive Peeters, Clive Anthonys, Domayne, Joyce Mayne, Kambos, Porters, Rick Hart, AGL and Origin Energy. The affected serial numbers are 93800001-93801000, 94000001-94001068, 94600001-94601750 and 95000001-95001068. If used for an extended duration there is the potential for motor capacitors in the units to overheat, with the potential to ignite and cause fire damage. If you own or know of anyone that uses the unit, contact Glen