Tag: smart house

  • HPH292 : What home automation do you really need? – with Mark McCall and Scott McMurray

    HPH292 : What home automation do you really need? – with Mark McCall and Scott McMurray

    After years of dabbling with various smart home technology, Mark McCall and system provider Scott McMurray explain how a fully integrated system is providing home automation in Mark’s new self build.

    Interview with Mark McCall and Scott McMurray

    Having spent years experimenting with smart technology on his first self build, when Mark decided to build for a second time, home automation was always going to be integral to his plans. After meeting Scott from Epitome Living at a trade show, they worked together to create an integrated system for the house.

    Mark has been blogging on the subject for 25 years

    While not claiming to be an expert in the field, Mark started blogging about home automation when he did his first self build, back in the mid ’90s. Automated Home was born as a result of Mark being unable to find much useful information about smart homes. Over the last couple of decades, Mark has been writing about his experiences of trying out numerous different systems, and says he knows a little about a lot, which is why he went to Scott for his expertise in the particular system he had chosen.

    It was Loxone, or nothing!

    For Mark, the Loxone system provides the right balance of security, reliability, functionality, integration, and affordability. Although not as cheap, or as expensive, as many other systems, Mark felt the extra benefits Loxone provides were more than enough to justify any higher price, and it became the only system that he wanted to use.

    And for Scott, his research across Europe had convinced him that at the heart of his business was going to be a Loxone based solution. He cites the fact that half of all new homes being built in Austria are using a Loxone system, as being evidence of its reliability and reputation.

    Design the system as early as possible

    It is important to try and avoid a situation where you are having to retrofit equipment and cables into a building that is already going up. It should be a case of designing a system that is going to work for the occupant, rather than having to make it fit around what is already there. Ideally the best time to be designing it is around the time the planning application is submitted.

    Be prepared to extend your wishlist!

    Mark’s initial brief for Scott was largely based around what he had already tried out and got on well with in his previous house, such as the automated lighting that switches on when walking into a room.

    From working with Scott and finding out about the different capabilities available, his original modest specification grew and grew into a fairly comprehensive system. The appeal was that the individual systems could be integrated and work seamlessly together, incorporating things like heating, multi-room audio, the doorbell to ring through chosen speakers and text to speech alerts.

    It contributes to the minimal feel of the house

    Most of the hardware and infrastructure are contained in a plant room so there is very little on show. Some speakers have even been concealed in ceilings and the sub-woofer is hidden in the kitchen island.

    A screen in the kitchen controls all of the subsystems and each room has a glass switch that can control lighting, audio volume, and operation of the blinds.

    To keep things minimal it is important to have a good cabling plan. Ideally have all the cabling in the walls when the house is being built, even using extra to allow for additions later on, but wireless, battery-powered additions can also be incorporated if needed.

    The system is not reliant on the internet

    The Loxone system doesn’t use an internet connection or cloud servers to operate. Instead, it has it’s own mini-server within the house.

    It is possible to enable remote access to the system though using a secure SSL link, which can provide access and monitoring when you’re away from the home.

    By keeping the system off the internet you aren’t opening yourself up to possible security failings that WiFi enabled bulbs and speakers etc could have, or risking operational failure if the internet connection goes down!

    The more subsystems that feed into it, the more intelligent it is

    Mark’s is a high performance home and the smart technology can feed into controlling energy usage. The system can pull-in weather forecasts and they are hoping to work out a way of using information from that to have the heat pump adjust automatically to compensate for likely solar gain during the day.

    The same system that controls the heating can also control the shading. So if shades come down automatically based on time of day, sun position, or external temperature, the heating will know that it shouldn’t be on. And if a window is opened to cool down a room it can automatically turn off the heating.

    The rooflights are also connected to the system so that if the room starts to overheat they can open automatically. There is a connected weather station on the roof, so if it starts to rain or the wind picks up, the rooflights will automatically close again.

    Mark says there is a synergy from all the subsystems being interconnected.

    The more complicated the system, the easier it is for the occupant

    The installer will tackle the complexity of the system, meaning that there is inevitably less for the homeowner to do. With much of the heating, lighting, window and rooflight opening etc being reactive and controlled autonomously, it can mean little more than reaching for your mobile phone or using a touchscreen if needed.

    Smart home is not the same as integrated home automation

    The usual understanding of a smart home is based around different apps on a mobile device providing a remote control function of different parts of the home, such as curtains, lighting, heating, audio, etc. Mark says these don’t always provide a great user experience and he is keen to point out how this differs from what he calls integrated home automation, which is entirely customisable to the individual.

    One example in his own house, is where the operation of a light switch in his utility room as he exits the house will activate the garage door so that it is open ready for him to drive away.

    Don’t be put off by bad experiences

    Scott explains that some people might be put off the idea of home automation, based on previous experience of bad DIY products that homeowners install themselves and then find out don’t work terribly well.

    He recommends they try and put those experiences to one side and go somewhere where they can fully experience a truly smart home.

    “It’s not the kind of thing that everybody feels that they need, but then not everybody needed automatic lights in their car, electric windows in their car, remote central locking, all these things that we’ve come to maybe expect from our vehicles. For some reason, we still put a key in our door and open our windows manually and adjust the heating manually.”

    Find out more

    Check out Mark’s Automated Home blog

    Follow Automated Home on Twitter

    Find out more about Epitome Living

    Follow Epitome Living on Twitter

    Transcript

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  • HPH133 : Building automation and KNX – with Paul Foulkes from Echohouse

    HPH133 : Building automation and KNX – with Paul Foulkes from Echohouse

    KNX consultant Paul Foulkes explains how building automation systems work, and the advantages of using the KNX standard.

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    Interview with Paul Foulkes

    Paul Foulkes has a background in engineering and also worked as an electrician before developing an interest in building automation systems. When a client’s system failed within 2 years of installation and with the system becoming redundant due to the manufacturer no longer supplying parts, he began looking at the alternatives and in 2003 became a qualified KNX installer.

     

    Building automation operates systems within a house in a more efficient manner

    A building automation system can incorporate:

    • Controls for ventilation, heating, shutters, security, lighting, etc
    • Monitoring of temperatures, heat gains, solar gains, VOCs (Volatile Organic Compounds), CO2, heat detection, smoke detection etc.

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    Take a holistic view before construction starts

    A self build house is the ideal opportunity for installing a building automation system. Consideration should be given from the outset, and looking into the future, as to how the house is going to be heated, ventilated and lit, to ensure that the correct cabling is in place.

    There will always be the fundamental needs for sockets and lighting in each of the rooms, but then there will be a constant layering of other systems (ie heating, ventilation, air quality monitoring) on top of that to bring them all together, rather than looking at them as separate systems and installations.

    “You need to be looking at all of this now and saying I can put in a system that will control all of this the most efficiently.”

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    Monitoring is an effective way of saving energy

    In Paul’s own house he has installed a detector in each room which monitors absence and presence, so can be set to control lighting or heating when someone enters or leaves a room.

    Monitoring information can be displayed in whatever way you choose, for example Excel spreadsheet or something more graphical, and by monitoring the amount of energy being used you can see the points at which it is being wasted.

    If linked wirelessly to a personal device you can also access this information remotely, ie check cameras, switch alarms off or view the monitoring information.

    Paul believes the future of energy billing will change dramatically over the next few years, with considerably higher prices at peak times. By monitoring and understanding your energy usage, and with battery storage, you can take back control of the energy that you use.

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    KNX is a non-proprietary protocol

    KNX is not a company that manufacturers a piece of kit. Instead it is a protocol, a standard that is accepted worldwide. There are over 400 manufacturers worldwide so there are always replacement parts available. It has been available for 26 years and new parts that are made today will still integrate with original systems.

    KNX isn’t a smart home system or a heating control system, it is a building automation system. It is fully scalable so can be used in domestic situations, and all the way up to stadiums and airport terminals.

    It uses an addressable bus system, whereby every input and output into the system (ie a switch is an input, an actuator that controls an immersion tank is an output) is a point within the system that can be addressed and linked together.

    “The advantage with a bus system is that it can be star wired, it can be Christmas treed, as long as the piece of kit is connected to the bus by two wires then you can address that piece of kit. So as long as you’ve got your wire to any position that you want an input or an output, you can hang what you like off that.”

    The flexibility of the system means that it has implications for care of the elderly and assisted living, where the technology can be used to adapt the house to you, rather than you having to adapt to the house.

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    Help may be required to commission the system

    A self builder might be able to lay the cabling ready, as any other cabling would be installed, but it is advisable, and probably cheaper, to have an expert commission the system for you. That involves using a piece of software which they can even do remotely. If any additional switches are required, for example other kit such as a ceiling fan needs adding to a 4 point switch, the person that commissioned the system can programme the kit and post the new 6 point switch for you to install.

     

    Passivhaus doesn’t need KNX, but you might still want it!

    Passivhaus addresses the heating energy usage and thermal loss within a building, but Paul says what KNX can do is address the lighting, hot water and ventilation to a degree, which make up a massive percentage of the energy being used. By using KNX monitoring and controls you can add the same level of energy efficiency and make savings to those.

    Paul also says that with so many Passivhaus buildings being constructed and decorated with such a high quality finish, the KNX system can be a more aesthetically pleasing alternative to traditional switches.

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    Smart home apps are an alternative for monitoring energy but have their disadvantages

    Paul explains that one of the problems with smart home alternatives is that they tend to be provided either for heating or lighting etc and not as an overall approach.

    “So straight away you’re already talking about multiple layers. You’re adding in complication and the idea of all of these systems is really to simplify your life. So do you really want your house run by 12 different apps, different systems, or do you want it run by 1 different app?”

    Paul also uses the examples of the Apple home care kit and Google’s Nest product. His personal view on their business strategy is that they want you to buy new, or upgrade, products on a 2 or 3 yearly basis. An additional problem with this is if you have a system which they decide to stop supporting you could be left with kit that is completely redundant.

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    Transcript

    Download a transcript of the interview with Paul Foulkes.

     

    Find out more

    Visit the website of Echohouse

    Find out more about KNX

    Follow Echohouse on Twitter

     

    The Autonomous House for sale

    Owners of The Autonomous House, Mike and Lizzie, are thinking of selling their ultra low-energy eco-build house in Worcestershire. The house was designed to the exacting Passivhaus standard, though is not certified. They also took their project a step further and decided to live off-grid and aren’t connected to the mains water or sewage.

    It’s an incredible and rare opportunity to buy such a house. So if you’re interested and would like more information while avoiding the estate agents, then let us know and we can put you in contact with Mike and Lizzie.

     

    The Hub update

    Our latest episode of the Long Barrow Passivhaus story takes the opportunity to look at why Alex Baines was keen to use Insulated Concrete Formwork on his project.

    We also have a new module on roofing which looks at the different types available, the support required underneath, cold roofs, warm roofs, etc.

    If you’re not yet a Hub member, then take a look at this video we have made, which tells you everything you need to know about what we can offer, and shows a sneak peak inside.

     

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