If they no longer work, they must be repaired to be in good condition or replaced with fans that meet all requirements. Wall and window fans should measure at least 125 mm in a bathroom and 150 mm in a kitchen. These new standards bring with them a new demand for suction fans, which is likely to be disrupted by COVID, as well as most supply chains. Every kitchen and bathroom in the premises should be installed there – the first consideration is where the fan should go. The best option is to use ceiling-mounted centrifugal fan systems mounted in the roof cavity. Other options available include in-line fans, ceiling fans, wall fans, or window fans. If a fan is near the tub or shower, Simx also recommends considering an additional low-voltage safety fan of just 12 volts. Details on compliant fans based on the different mounting options are listed below. All kitchens and bathrooms must have an extractor hood that is ventilated outwards.
It is important that these fans work and there are minimum performance standards: all bathrooms and kitchens must have extractor hoods that are directed outwards to ensure a healthy standard of living. Ventilation should include opening windows in the living room, dining room, kitchen and bedroom. Rooms with bathtub, shower or indoor hob must be equipped with a sufficiently large extractor hood that is ventilated outside. Fans installed before 1. July 2019, must ventilate outside the house and be in good condition, but they do not have to meet the requirements listed above. In most cases, an extractor hood is the most effective type of cooking hood for kitchens (although other types can be used) 1. Legal in the state of construction – If a room does not meet the requirements of current standards for opening windows and exterior doors, but meets other ventilation requirements at the time of construction or conversion into a habitable room, it is exempt from the new standards, as long as it still meets the alternative requirements. In-line fans are mounted in the roof cavity and draw air from a grille and exhaust outside. Each room with bath or shower also needs new fans.
The location of exhaust gases and cleanliness are also part of compliance and often do not receive the necessary attention. This can lead to urban pollution problems, especially in fast-growing cities with modern mixed-use areas. The AOM may prescribe minimum distances for kitchen exhaust gases and performance requirements for different exhaust gas orientations in order to meet G4.3.4. In any room equipped with a hob, new fans or extractor hoods must be installed. All kitchens and bathrooms in rental properties must have extractor hoods. Fans must be ventilated outwards (not in the room, roof or any other room) and meet certain standards of size and performance. The standard 1668.2 design can be very demanding for duct size and require larger, noisier and more energy-intensive fans and air conditioners. This is where an AOM certified proprietary hood is of great help. AOM specifies the extraction equipment We examine the specific cooking equipment and evaluate the hood to fit it. The positioning of the hoods, the required air flows and any filtration are designed as part of the kitchen equipment package. The advanced design of the hood allows for a refined kitchen air exhaust system. Previously, kitchens and bathrooms on rental properties only had a window that opened.
But from July 1, 2021, all kitchens and bathrooms will also have to have an extractor hood that evacuates to the outside. Recirculating fans and fans that do not ventilate outwards are not suitable for setting this standard. They can still meet the standard if additional fittings such as external ducts are installed so that they can ventilate to the outside. AOM cookers are specially and independently evaluated and certified to meet New Zealand standards. This certification makes it a proprietary solution. Click here to see their credentials. CLICK HERE for more information on HYPER150 EC fans All kitchens and bathrooms must have an outdoor ventilated extractor hood. If you`re looking to develop a new commercial kitchen in New Zealand, ventilation is a significant and significant capital expense for operations, so you want to make sure it`s compliant. For commercial extractor hoods and extraction systems, we first look at clause G4 of the building code – ventilation. In doing so, we focus on the following performance criteria; Not all fans installed before July 1, 2019 have to meet these new standards. However, if they no longer work, repairs or replacements must comply with the new standards.
We have three fans that depend on the length of the duct and the type of room you ventilate (e.g. bathroom or kitchen), are suitable. These are as follows: If fans and rangefinders are installed after July 1, 2019, they must have a minimum diameter (including ducts) of 150 mm or an exhaust gas capacity of at least 50 l/sec. Local health and safety legislation – access and maintenance of the product and take the general place of contamination of kitchen exhaust gases. Since this demand is only increasing as we get closer to the deadline, we recommend that you meet all requirements on time. If fans and rangefinders are installed before 1 Only 2019 – as long as your equipment is in good condition and ventilated to the outside (directly or by piping), it meets the requirements of the standards for healthy homes. 2. It is recommended that owners seek professional advice to apply this exception Proper treatment of kitchen exhaust gases can be proven with tests to support filtration and, most importantly, odor removal performance for different types of cooking.
It is important that actual cooking fumes are tested and odor control is specifically measured, and AOM is one of the few organizations that has done so. In this way, we are able to provide independent evidence to meet these requirements and specify them with confidence. Many fans in New Zealand had a diameter of 100 mm in the past. These do not correspond to the norm and therefore not to the new standard. Simx recommends replacing these fans with a fan that meets the new standard. If you mount the fan in the ceiling, we have a special set of fans that meet the standard with a number of optional grilles. They are the best fans because they develop a very high pressure that allows the channels to be used over long distances and difficult distances while remaining compliant. The information contained in this article is for advertising purposes only. They do not constitute legal advice in any way and should not be used as a basis for legal actions or contractual transactions. The information is not and does not attempt to be a complete representation of the relevant law in New Zealand.
If you need legal advice, you should seek independent legal assistance. myRent.co.nz assumes no responsibility that may arise from the use of this information. Use our online tool to find out if you need to install new extractor hoods in the kitchen and bathroom of your rental property. With certification and test data, AOM can examine the entire exhaust system in context and provide a well-founded specification for compliance. By combining the certified hood and the tested filtration, we obtain a complete solution from the extractor hood to the atmosphere to comply with G4. AS/NZS 4323.3 – Determination of odour concentration by dynamic olfactometry All habitable rooms in a rental property must have at least one window, door or skylight that opens outwards and can be fixed in the open position. NZS 4303 – Ventilation for acceptable indoor air quality. The following diagrams provide an easy way to choose the best fan for the application, depending on the length of your ducts and the number of curvatures you have Our guidance document contains more specific information about the ventilation standard. In each room, the size of the windows, doors and skylights to be opened together must be at least 5% of the floor area of that room. UL 1046 – Standard for grease filters for exhaust ducts Traffic hoods do not meet the standard because they are not ventilated to the outside and must be replaced by a compliant one.
The New Zealand acceptable solution document refers to the Australian standard AS 1668:- as a whole and also specifically to Part 2 – 2002. In Australia, Part 2 of 1668 has been updated to a more detailed version of 2012. Both standards are designed to operate according to G4`s performance criteria, so compliance generally overlaps. Both versions contain the following clause; These describe our overall goal in designing a system.