Wissen über Heizen und Kühlen

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Induction cooktops work by generating an electro-magnetic field heating the cookware directly. While most cooktops are capable of generating only 1000 watts to 1300 watts, the new Duxtop Induction Cooktop Model# 8300ST sensor touch generates 1800 watts of power heating food more quickly. There are several advantages to induction cooking listed below.

Electrical Source

Duxtop Induction Cooktop uses 120 volts, 15 amps of electricity – standard in all homes. Basically you plug the cooktop into any standard household outlet. This makes it very convenient to move around.

Safety

There is no open flame or hot element with these cooktops. The cooktop only gets hot where the pan is sitting, any other part of the surface, including within the cooking area, remains cool. Safety features are built in requiring a certain size of ferrous metal to touch it before it comes on, preventing accidental heating of jewelry or kitchen utensils. This sensor touch model has a Safety Lock Key that locks all functions of the cooktop. In order activate the lock, you press and hold the Safety Lock Key for 3 seconds. This design helps prevent injuries in children who may accidently touch the cooktop.

Instant Heat Adjustment

For serious cooks, this is an important feature. You can instantly and accurately adjust the temperature and the cooking power of the cooktop. Like gas cooktops, the change in heat is instantaneous. Cooking levels range in Duxtop Induction Cooktop Model# 8300ST from 200 watts to 1800 watts and temperatures from 140°F to 450°F.

Heat Efficiency

There is no wasted heat with induction cooking as the cookware receives all the energy through the magnetic field. No part of the cooktop not in contact with the pot or pan heats and no heat is released into the room from the cooktop. Approximately 85 percent of the energy used is used for cooking. Automatic timers allow for precise cooking times.

Ease of Use

Duxtop Induction Cooktop is easy to install (plug in) and easy to use. The model# 8300ST has an on/off switch and control for the power level and temperature levels. Most induction cooktops require very little space for their use. These cooktops are a snap to clean. Simply wipe clean with a damp cloth when the cooktop is cool after cooking.

In comparison with the traditional PVC Sticker control panel, the sensor touch control panel is durable for long-term use. Unlike the PVC Sticker or PET sticker control panel, there is nothing to wear out or wilt after as little as six months of use and cleaning. There is no worry with the Sensor touch design, cleaning after each use is a breeze and you don’t have be concerned about your control panel disappearing!

The sensor touch design provides a more enjoyable cooking experience, making every touch soft and giving a tender sensation. In addition, the convenience of the sensor touch makes cooking more fun. The entire appearance of the cooktop is more elegant and beautiful, a wonderful addition to any kitchen.

Duxtop Induction Cooktop makes cooking a breeze providing up to 1800 watts of energy for quicker cooking, and precise temperature levels for fine-tuning the cooking method.

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Source by G. Chastain

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The Romans had water therapy. They knew the pleasures of sitting by a cool fountain, but it was the ancient Egyptians who started refining the first air conditioning system.

To the Egyptians, the Nile River was the River of Life in many ways. Not only did it provide water for drinking and bathing, but it made farming possible in an otherwise arid landscape. Besides that, the Nile provided water for the first evaporative cooling on a large scale.

For eons, folks knew that putting water inside a semi-porous container, like an unglazed clay pot, resulted in a cool drink because of evaporation cooling. The Egyptians kicked it up a notch when they constructed parapets over which cascaded sheets of water. Slaves equipped with enormous fans stood nearby and kept the air circulating over the moving water. The result: evaporation cooling.

Several ancient cultures also used „wet mats.“ We know that Egyptians, Romans, and Greeks all made use of wet mats to cool the air inside homes and other buildings. When a thick, damp cloth was hung over doors and/or windows, the air movement effectively promoted evaporation cooling and could reduce indoor temperature down to as low as about 66° Fahrenheit. The Egyptians even figured out how to make ice!

In the early days of air conditioning, especially in the arid parts of the United States, evaporative cooling was still in broad scale use. The boxy, adobe-style houses of the Southwest often have a roof structure designed to support the considerable weight of a shallow pond. When the roof is flooded, fans blow dry air across the liquid, speeding up evaporation. The cooled air is then routed through the building, a welcome relief in the hot summer months. These coolers, sometimes called „swamp coolers“ are economical to operate and are still in use in some areas.

Modern air conditioning systems no longer rely on water for evaporation cooling. Gases like Freon or Puron are the modern refrigerants that lower air temperature. The actual air conditioning unit is usually placed outside the building because it is a harmless and more efficient way to get rid of the inside heat (into the atmosphere).

An important function of today’s AC system is to reduce the humidity levels inside the structure. Keeping the humidity levels low (in the area of 30%) reduces problems with mold and mildew, and helps to alleviate serious health problems for people who suffer with allergies. Also, dust mites find it difficult to survive in low humidity conditions.

When an air conditioning unit is up and running, it works to maintain a pressure level throughout the entire structure. To help the unit work efficiently, doors and windows need to be closed so that the pressure can remain as constant as possible. For spot cooling, consider adding a small fan to move the air right where you need to up the comfort level.

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Source by Brian Figlioli

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The Trane heat pump reviews specifically for household models were created to help consumers buy the right products for their needs. The household versions of the are different compared to heavy duty models. The main difference lies on the power consumption, size, capacity and components of the models. Household models are smaller and more compact. This is necessary since homes have very small and limited spaces. The should be able to fit in any area of the house without any problems. People can choose from different models that have been designed to have specific shape and size. Wall hanging models are ideal for houses with a high ceiling and limited floor areas.

The power consumption is another important aspect of the which should be given great attention. This is necessary especially for families which are experiencing financial distress and shortages. The amount of electricity utilized should be minimal in order to prevent significant increase of the power bills. The optimum heat producing capacity of the household should range from 500 to 1000 watts. This would suffice for a small house with an average area of 300 square meters. The heat pumps should be equipped with an electrical battery in order to store the excessive power utilized. This feature has been recently added to provide longer use even if the electricity has been cut off. People should make sure that they buy models which are equipped with a long lasting battery.

The heat pumps reviews also discuss the durability of the products. The people involved in the review have tested the products extensively. The products underwent abusive and continual use. Extreme assessment of the product includes continual operation for a couple of weeks without turning off the unit. The units are also brought in room with excessively cold temperature. The writers try to check if the unit would able to increase the temperature and heat level.

The Trane heat pump reviews for household models are very extensive and comprehensive. The consumers would be assured that the information they acquire would be reliable and useful in different conditions.

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Source by Jordan Laurent

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Insulation is one of the least prioritized expenses in a household. However, it is a great way to lessen electric and utility bills because it can help in keeping your house cool in summer and warm in winter. One good way to do this is through self spray foam insulation.

Windows and roofs are the biggest entry and exit points in thermal loss. Foam can be applied in windows and roofs to keep heat and cold from getting in and escaping in your house. It is sprayed in liquid form and will become durable foam when dried. You can also use self spray foam insulation in preventing leaks in your roof aside from insulation purposes.

The R value and insulation rating are key indicators in the performance and efficiency of a certain material. External walls and roof can have different rating specifications with your internal wall, ceiling, and floor. This should not be a problem because foam is suitable for wide range of household and commercial applications.

Cellular glass insulation, as well as asphalt layer, is a good combination for foam. Polyurethane, the main component of foam, is being sprayed in liquid form and will fill in loose spaces and small gaps. This makes foam applicable for irregularly shaped areas and joists.

It comes in spray foam insulation kits for convenient installation. It is packed with hoses and nozzles for various purposes. They are made to withstand attacks from birds, pests, and insects. Kits differ in their features and polyurethane drying time. Some kits are also environment-friendly, and some are also applicable for sound-proofing purposes.

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Source by Patrick Ault

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Conditioning is a word that is used a lot in the fitness industry but what does it really mean to have conditioning? There are those that are ripped from strength conditioning, marathon runners have to go through a type of stamina conditioning and then there is the conditioning that is necessary for fighters and martial artists.

Conditioning can come off as this hard core concept of hard work and training to build your body up so it can perform or endure what the sport demands of it.

And it’s true.

However, that is not the whole picture of what it means to be a conditioned athlete. Building your body and it’s performance potentials is only the outcome associated to having „great conditioning“.

The other half of the definition of conditioning is more about the discipline, the standard and the values that you adopt.

„Great conditioning“ is the result of adopting and integrating habits, standards and values that slowly, over time changes and transforms the conditions of the body.

Conditioning isn’t so much about building yourself up but rather more about adopting a specific way of being that will serve you in the long run which is beneficial for the performance and execution of the skills in a given sport or physical activity.

So, how do you integrate a great conditioning ritual? One that will meet your athletic needs based on the sport or physical activity of your choice?

A good place to start is by looking at where your values are placed in your sport. By looking at the components that you already have a natural inclination to favour and value, then you have a platform where you can design for yourself a discipline that you are more than likely to commit to.

If for example you naturally favour cardio, then use that as a base to develop a discipline to condition, not only great cardio but also as a way to condition better form, more strength and greater endurance doing the activity that is the source of cardio. It’s also a great way to develop secondary attributes. If, for instance you typically rely on jogging for cardio but you would like to develop another physical skill or work on some upper body, than you might consider cardio boxing. Or you might want to develop better foot co-ordination and do some skip rope.

By focusing on what you already prefer, you are much more likely to build on it and develop a discipline and from a place of discipline is where conditioning can flow from the best.

Also, using discipline is a powerful way to predispose yourself to growth and improvement in a specific skill or attribute. Once you have established a discipline on a particular practice, then it’s only a matter of pushing yourself and upping the ante in order to improve and refine that conditioning.

Let me leave with one final thought, and that is, when thinking in terms of the type of conditioning you feel you may need for whatever fitness goal that you have, think about what habits you need to adopt and how you need to be in the process of the training rather than what you need to do to reach and achieve a goal to finally arrive at. Chances are that when you arrive at that goal, in order to maintain it, you will need to sustain the conditioning by maintaining the practice that got you there in the first place.

Conditioning is a process.

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Source by Clinton Boucheix

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Popularity of the state-of-the-art electric cars is on the rise. According to an industry source, by 2020, electric cars will be in vogue worldwide, and their global sales will rise up to $635 billion.

With this rise in demand for electric cars, the need for appropriate universal charging systems will be felt more vividly; And this can be made possible only through the dialogs and concerted efforts of the policy makers, car manufacturers, researchers working in the field of automobile science, and consumers all across the world.

Now, coming to the reason behind the increased popularity of electric cars, the mechanism that drives these car engines requires an optimal economic structure. The vehicles also require lesser automotive parts, and most of them are cheaper than those required for other available diesel or petrol cars in the market. But the most significant advantage of electric cars is that they cut down to emission level to the lowest, and in today’s time this is very vital, as ensuring sustainable development through the use of renewable energy sources is the need of the hour.

However, there is a challenge in the way of developing these alternative energy driven cars. The cost of a high-capacity rechargeable battery amounts to almost two-third of the cost of the electric cars, and this makes them quite an expensive buy for the consumers. Additionally, the issue of the recharging standard is also there.

Nevertheless, all the leading nations, pioneering the cause of sustainable development, are working towards this critical issue. Cutting-edge technologies are being discovered every alternate day. It is expected that a solution will be worked out soon, and alternative mobility solutions like electric cars will be able put up a grand show in the years to come.

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Source by Lavanya Gupta

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What would we do without the blender? No more smoothies or fancy drinks and no easy way to create pureed foods for both variety in the kitchen and special diets in the hospital. There would even be limits on scientific research as the blender is an important tool in the laboratory, used by such scientists as Jonas Salk in his search for the answer to polio.

Fortunately Stephen Poplawski got the bright idea in 1922 to add a spinning blade to the bottom of a glass jar. He did it so he could make fancy drinks for soda fountain patrons. Of course, whenever someone has a good idea, someone else thinks of a better one and so it was with the blender. Fred Osius, one of the founders of the Hamilton Beach Manufacturing Company, took on Poplawski’s idea and made it better.

Back in 1910, Osius, along with L.H. Hamilton and Chester Beach, formed a company to make kitchen appliances, which they did successfully then, and still do very well. Then in 1933 Poplawski’s soda fountain tool caught Osius‘ attention. He made significant improvements in Poplawski’s design and patented his version. But it is a long way from patent to successful marketing and Osius needed money to follow that road.

At that time Fred Waring’s big band, The Pennsylvanians, was very popular and financially successful. Waring didn’t start out to be a musician, however. He originally was a student in architecture and engineering at Penn State. He always retained his interest in new inventions and so seemed to Osius to be a good prospect. In fact, Waring was also searching for an easier way to make the special diet of liquefied vegetables that his doctor had prescribed to treat Waring’s nagging ulcers. Thus, in 1935 when Osius talked his way into Waring’s dressing room after a live broadcast at the Vanderbilt Theater in New York, Waring was all ears.

Waring put $25,000 into the development effort of Osius‘ blender. Six months later the problems with the blender still weren’t solved. Waring, as the primary investor, fired Osius and hired someone else to redesign it. It took a bit more time, but finally the Miracle Mixer was complete in 1937. It sold for $29.75 and was an immediate hit when it was introduced at the National Restaurant Show in Chicago.

The next problem was getting people to hear about this wonderful new tool. Fred Waring took on the marketing himself. He began in 1938 by changing the name of the company manufacturing the blender to the Waring Company and the tool to the Waring Blender. Then he spread the word. As a musician Waring was on the road a lot, spending much time in hotels and restaurants. He pitched his Waring Blender to the chefs and bartenders wherever he went. Next he took on the big department stores such as Bloomingdales and B. Altman. And by 1954, 1 million Waring Blenders had been sold. They are still selling today in modern versions and even a vintage reproduction of the original machine.

Waring once bragged about his Waring Blender to a St. Louis reporter. He said „This mixer is going to revolutionize American drinks“ and he was right.

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Source by Johnny Waymire

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Unless you have an unlimited HVAC budget, chances are that you spend a great deal of time trying to keep comfort levels up while keeping energy costs down. This can seem like a never ending battle that only changes when the seasons do. Fortunately, there are things you can do to help get the most from your heating system and thus lower energy bills.

How to get the Most from Your Heater

1. Filters – Take time to change out the filters on your system. Depending on the age and type of system the frequency will vary, but a good rule of thumb is once every three months. By changing the filter, your heater will not have to work as hard, plus you get the added benefit of cleaner, healthier air.
2. Thermostat – Be sure that your thermostat is properly calibrated. A HVAC technician can do this for you as part of a basic inspection or maintenance check. You can also save money by installing a programmable thermostat that allows you to not just set the temperature in your home, but to control when the heater turns on and in what rooms, Some of them can even be controlled via your smart phone so that you can have an even more accurate use of the heater.
3. Age – Sometimes the best way to get the best heating scenario is to update a system. Older heater units did not have the same standards of efficiency that we have now. If your system is more than. 10 years old, consider an update.
4. Maintenance – Your HVAC unit needs to be inspected at least once a year to ensure that all the pieces and parts are working correctly in that nothing is in need of repair. Frequent checks means that you are aware of any issues and can address them before they become a problem – such as having the heater go out just as blizzard comes in!
5. Temperature – There is no reason to crank your heater to 80 degrees just because it is 40 degrees outside. In fact, the HVAC can typically only get your home around 20 degrees warmer (or cooler in warm months) than the outside air.

Lower the energy bills means more money for doing those great winter time activities such as skiing or escaping to a warmer climate for a winter vacation. If you are unsure about to implement these tips, talk to a local HVAC professional to learn what your home or office needs to do. After all, when it comes to warmth and saving money, there’s nothing more important than planning and being proactive. Get started today.

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Source by Janet Slagell

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I have been asked a lot times why helicopters hover with one skid low. Helicopters with a counter clockwise rotating rotor system hover left skid low and helicopters with a clockwise rotating rotor system hover right skid low.

Now there are two factors to consider in order to explain this phenomenon. The first one is what we call translating tendency or tail rotor drift. This factor causes a sideways pull on the fuselage of the helicopter and in the case of a counter clockwise rotating rotor system this pull will be to the right. To explain it very briefly it is the result of the tail rotor force acting at the tip of the tail boom counter acting the torque reaction which wants to rotate the fuselage clockwise.

In order to counter this sideways pull results in the second factor this is tail rotor roll. To counter the sideway movement to the right the cyclic needs to be positioned slightly to the left which will tilt the Total Rotor Thrust to the left thereby inducing a horizontal component of Total Rotor Thrust to the left acting on the same level as the plane of rotation.

Now normally in small helicopters the tail rotor which produces a force to the right when viewing the helicopter from the back acts below the plane of rotation. This force which counter act the torque reaction forms a couple with the horizontal force to the left which was the result of tilting the cyclic (Total Rotor Thrust) to the left. To put it a bit simpler imagine a horizontal line with one force acting to the left and above the line and another force acting to the right and below the line. The two forces acting against each other and not on the same line will produce a rolling moment.

As I mentioned this is just a brief explanation for a not so straight forward aerodynamic principle.

One last comment when it comes to tail rotor roll is that it is most prominent during the hover off course because it is related to the amount of torque that the helicopter develops. That is why a counter clockwise rotating helicopter tends to drift to the right as it transitions from forward flight back to the hover because power or torque is slowly applied as the speed decreases.

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Source by Harry Cameron

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For anyone who loves music and crisp, clear sound, the name Bose probably means much more than „speaker company“. In fact, Bose has long been known to produce the best speakers on the market. The revolutionary technology that Bose speakers use started in their 601 series, and more than 20 years later that product still stands up against some of the best sound engineering in the world. But are they really the best speakers ever? Well, the short answer is yes, and no.

In 1982 when they were first released to the market, Bose 601 speakers were cutting edge technology, providing the most crystal clear sound and smooth base available. While the series is discontinued, the quality of these speakers puts most widely available brands to shame. Their durability is unquestionable, with many of the original models still in perfect working order. And although they are highly sought after, there are many places online where you can bid on or purchase these beautiful vintage models. The directional technology incorporated into these speakers means that they will stand up against much of today’s competition. And with the crystal clear sound, durability, and revolutionary sound disbursement features, these were a truly unique offering in the marketplace.

However, there are some down-sides to the Bose 601 series speakers. First, this system will require a quality amplifier to work properly. You’ll never be able to hear the full potential of these speakers without it. Second, if you plan on using these speakers with a surround sound system, you’ll need to purchase other Bose products to make it work, including the VSC-10 center channel, and a pair of Bose 161 speakers. Third, some say that while the cases were very attractive and modern in 1982, they light cherry or graphite grey finishes don’t work as well with today’s home décor, so you may need to paint the cabinets to suit your taste. Finally, while they are widely available online at auction sites like eBay, they are still not „common“ and therefore can be a bit pricey, when you add in shipping costs and any fees (if you are importing them to or from another country.

All in all, if you can find a set of Bose601 Series speakers, you might go through a little bit more trouble to find them than just going to your local electronics store – but the reason for their lasting popularity will be obvious the minute you switch on the power!

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Source by Shawn Parker