There are numerous ways to heat, cool or ventilate homes, offices and other spaces, but a popular energy-efficient method is to combine these requirements into an HVAC system that distributes air around a building through ducts and vents.

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Vents supply air that has been filtered, purified, cooled or warmed or has controlled moisture levels. Other vents return air back to the main HVAC units or expel stale or exhaust air from the building completely. Ducting is essential in areas that generate fumes, smoke or moisture, which is why modern kitchens and bathrooms now have extractors.

Ductwork can be made from a wide variety of rigid or flexible materials and may have rectangular, round or oval cross-sections. Sheet metal fabrication is the most popular, but ducts can be created simply by covering voids between joists and studs. However constructed, ducts usually branch from larger plenums connected directly to the central HVAC unit.

The central unit may combine heating, cooling, filtering and sometimes moisture conditioning units with the blower that drives the air around the system.

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Ducting Sizes

Round ducting exists in all sizes, from about 5cm to over a metre in diameter, and rectangular ducting comes in a similar range of widths.

Calculating the ideal duct sizes to deliver the right amount of airflow to different areas is complicated, but there are free calculators and tables online to help. Valves and other devices help you to precisely control these airflows. See a range of ductwork supplies at https://www.dustspares.co.uk/.

Ducting Materials

Size is not the only consideration. Metal ducts are easily cut and fabricated for tight bends but can transmit sound and conduct away heat. Flexible reinforced plastic ducting is insulated for better temperature control and noise suppression but is not so suitable in tight turns. A third option is to construct from fibreglass panels. This material is easy to cut and still has advantages in terms of heat and sound insulation.

Existing metal ductwork can also be insulated to further improve the energy-efficiency of particular spaces whilst also reducing the danger of condensation encouraging mould or mildew. Spray foams are one method of treatment.

Frequently, different materials are combined in different parts of a system. For example, plastic Flex is ideal for final runs to the vent outlets, with metal used in larger main ducts.

Chatbots are currently seen as one of the next big things in web design, and a harbinger of the coming age of AI automation. When we hear stories of robots taking our jobs in the future we tend to think of humanoid robots like those featured in the movie AI.

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Rise of the robots?

Chatbots, however, are nothing more than lines of code, with preprogrammed responses to common queries. While the more advanced can learn to some extent, most are simply a more advanced version of a self-serve FAQ site that could be built by any Newport web designer. At least for the moment. Some believe that the age of the AI assistant is almost at hand.

Chatbots can do more than talk and take messages though. Companies are using them on websites and embedded in social media to respond to requests for information, carry out transactions, place and cancel orders, book appointments and handle returns, taking over from traditional customer service agents. This, when done right, can drastically lower a business’s costs, and provide a 24-hour service – something millennials are growing to expect.

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Brain training for chatbots

But if you’ve gone to the effort of building your business a chatbot (and if you need help doing this talk to Netcentrics Newport & Cardiff web design agency), how do you check it’s performing effectively?

Google has once again stepped into the breach with a new free service called Chatbase. Chatbase incorporates a REST API that you can connect to a wide variety of chatbots, allowing the service to pull data from them. Unlike traditional analytics programmes, the software has to interact with a far more dynamic set of interactions. Unlike previous projects, Google is playing the role of trailblazer here rather than digital disrupter, as there are few other genuine competitors on the market at the moment.

Once installed Chatbase can monitor the number of sessions, what percentage of these have been handled effectively and how long it took. Transcripts are also available, and Chatbase can analyse these to pull out repeated words in order to help you to continue to develop your chatbot’s responses based on what your customers are saying.

The console is very similar in style terms to Google’s other products like Analytics and Adwords, so users will feel right at home with it.

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Control components provide the logic in an electrical panel, which often means deciding the sequence in which events happen. They can be simple, operating an on/off function, or very complex, providing a sophisticated control logic.

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Simple electrical control components

There are single components that do just one thing, such as timers. There are also control relays, which work to switch items on or off electrically without human intervention.

The relay has an electrical coil, a spring, and two electrical contacts – one is stationary, and one moves. When the coil is not energised, the spring keeps the moving contact away from the stationary contact and this keeps the switch open (off). In its energised state, the coil has a magnetic field. This draws the movable electric contact over to the stationary one to close the switch and allow the current to pass through (on).

The technical name for this is a normally open one pole single throw (1PST) relay. Each set of contacts is a pole, with control relays usually having between one and four.

Relays are simple and reliable controls that are used in many applications, such as computers, telephone exchanges and automated control systems. The ‘relay’ lies in the fact that the action is relayed from the first component (the control circuit) to the second component (the load circuit). Timing relays have timers that can control when the contacts open or close, switching a device on or off at set intervals.

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More complex electrical controls

Assemble a collection of control components such as timers and relays into one package, make them programmable, and you have a programmable logic controller (PLC). Using a PLC has some advantages over using a number of separate electrical components; for example, they are flexible and can be smaller.

On the other hand, sourcing electrical control components through OSMElectrical or another supplier individually can be cheaper, does not require a PC for programming, and does not need a skilled operator.

Control relays can be sourced with a number of handy options, such as indicators to show the state of the coil and contacts. This can be useful in testing and maintenance.

In the end, the beauty of electrical controls is that you can use basic components to make the control as simple or as complex as required.

Your website landing pages have one single goal, and that is to capture leads. Any visitor who arrives at one of your landing pages should already be interested and motivated to find out more, subscribe to your newsletter or finalise a sale.

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According to an article in Marketing Land, increasing the number of landing pages on your website can improve your sales figures by as much as 50 percent, so it’s worth taking the time and trouble to review your website and see where improvements could be made.

Keep to just one CTA (call to action)

Don’t confuse visitors with more than one CTA. The landing page should contain one single CTA that is clear and as concise as possible. If visitors have to search for the right button to click, then your message isn’t clear enough.

Keep it simple

Lots of images combined with too many colours and different font sizes send a muddled message to visitors. They have arrived on your landing page with the will to explore your goods or services, so provide them with information presented in a meaningful way that they can absorb quickly.

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Understand exactly what your landing page is for

Unless you are clear in your own mind about the message of your landing page, then your visitors almost certainly won’t be. You’ll almost certainly need professional advice, which should be readily available – for example, Website Express are a Drupal Design Agency with experience of leading brainstorming sessions for large organisations.

Make headlines simple and straightforward

Your landing page headline should encourage the visitor to consider the benefits of taking the next step and clicking on the CTA button, so make it as appealing as you possibly can. Once again, your WordPress or Drupal design agency can help you with this.

Include customer testimonials

In an age when everyone is a reviewer, we all like to see what others think of a product or service before we make a commitment to buy. Use genuine testimonials from previous satisfied clients – and if you don’t have any, ask previous customers to provide you with one.

Be selective about the information you ask for

Don’t ask visitors to part with too much information in your CTA. Asking for a name and an email address is usually sufficient.