How to clean the chimney of the house

The most important operation for proper maintenance of the chimney, the operation that must be performed so constant throughout the period in which the fireplace is used, it is obviously the elimination of excess ash. The ash removal should only be performed when the fireplace is completely cold.
For removal of ash from the fireplace is more than enough to use
scoop
whisk
Alternatively, you can use the vacuum cleaner but only if it has the appropriate accessory for the collection of ashes.
It is fair to say that the ashes of the fireplace can be reused for the production of compost to offer poor soil potassium. If you do not need to ask everyone you know if they might be useful before throwing it in order not to make any kind of waste.
Clean the chimney
Another important step for the maintenance of the chimney is to clean the chimney. If the flue is blocked in fact, the fireplace may not function properly and, in addition to throw dust in our home, this could also be the cause of a fire.
To clean the chimney should always call an expert why do this on their own could be very dangerous.
What we can do on their own, however, is a prevention of obstructions. The prevention is the use of periodic special products that avoid the obstruction of the flue eliminating any residual small size from time to time. These products should simply be added to the timber and set ablaze along with, and can be purchased at hardware stores, supermarkets no longer supplied, DIY stores and in stores that deal with fireplaces and heating systems.
Cleaning the surfaces of the chimney
Routine maintenance of the chimney must also remember cleaning the surfaces of which it is composed. This obviously depends on the cleaning material and for this reason it is recommended to buy a specific product for that type of material and follow the instructions on the pack.
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Cpu, noise, water and bubbles

In the early days of my interest in the world of the PC, the focus on the new CPU was not yet on the number of cores, but on pure frequency in MHz. Every so often a joker, more or less serious, he came out with the phrase "Yes, of course, and if it goes on like a day rate will be so high that there hiss ears."

In reality, things did not go right, but instead there is a problem that existed then and constantly growing: the operating temperature of microprocessors. Although the miniaturization of transistors, the increase in frequency has recently brought the concept of liquid cooling in the world of home PCs, especially those ultra performance the most hardcore gamer.

What began as an idea a little 'sock, though sensible, is nowadays a reality for an increasing number of people, but also not free of defects, the main problem of this technology is that the most economical and common liquid - water - boils at a temperature not impossible to achieve within a computer. The formation of steam is able to generate a "film" that degrades the performance of the system, and then lowers the cooling power.

Ari Gletzer has found a way to slow down this process, as writes NewsScientist: substantially inserting a speaker on the opposite face of a hypothetical cube filled with liquid (the other side would be in contact with the surface to be cooled) and projecting a sound to about 1 kilohertz, is likely to reduce the temperature by almost 150% compared to a traditional system in liquid. And moreover, the best results would be obtained in the small space, that is, with a few millimeters of liquid between the speaker and the processor, a boon for manufacturers of cooling systems for PC.

The good news is that this technology can also be used for other purposes, for example in cooling of aerospace components. The bad news is that the human ear can hear sounds between 20 and 20,000 Hz, then the hypothetical resulting sound would be added to that of the power supply fan.
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The various types of air conditioners
Air conditioners are among the various appliances in the home, a "must" that can not be missed especially during the warm seasons and sultry.
In fact, thanks to this appliance, you can lower the temperature of the house to make it bearable and inviting.
Window conditioners
Its function is to cool the air, dehumidify and filtrala. Conditioners on the market are of this type in the range from reduced dimensions with cooling capacity of 5000 BTU / h (sufficient to cool a room of small size), up to conditioners with cooling capacity equal to 12500 BTU / h, suitable to larger environments.
Of course, our advice is to choose before purchasing this appliance, an air conditioner appropriate size. In fact, an air conditioner cools too powerful certainly our house but increases the relative humidity. While a handsome little conditioner, you will not definitely lived up to our every need.
To determine the effectiveness of the cooling enough to have a energy efficiency rating (EER) of at least 9.7 for the models below the 8000 BTU / h and 9.8 for models perform better. Viewed carefully whether the model is the label that clearly indicates.

Portable air conditioners
are suitable for air conditioners cool small spaces. It 'mounted on wheels for easy transport. With the same appliance is possible to obtain both hot and cold air. Of course needs to be placed, at the moment, near a window in such a way that the warm air can be issued outdoors. Some models also contain a tray must be emptied every 24-48 hours.

Oscillating fan
Moves going back and forth in an adjustable manner for the diffusion of air on a wider area. This oscillation can be switched off or gradually increased thanks to a convenient handle. It can be used in virtually any environment and placed on qualsia stable surface.
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Installation guide of the air conditioner

Step 1: First you need to calculate the area you want to cool and measure the size of the air conditioner.
Step 2: Once you have decided the arrangement of the air conditioner should proceed to the measurement of the opening of this window in the same room in which we are going to install the unit. We need to insert the air conditioner that we bought into the opening and not all the air conditioners on the market have the same dimensions.
Step 3: Once you have chosen the location to install the air conditioner, install the mounting brackets supplied with the unit, ensuring follow the instructions provided by the manufacturer.
Step 4: Slide the air conditioner into the window and fasten the mounting brackets (again according to the manufacturer's instructions).
Step 5: We lower the window down on top of the unit.
Step 6: We extract the extensions on each side of the air conditioner and agganciamoli to the window frame.
Step 7: We use a piece of foam, sometimes supplied with the air conditioner, by inserting it between the upper part of the air conditioner and the window.
Step 8: Plug in the outer tube to drain the air conditioner.
Step 9:  If necessary, the area around the unit to help keep the hot air out of the room.
Step 10: Plug in the air conditioner to the power and enjoy the long-awaited fresh air.
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How to calculate the BTU power required for an air conditioner

Here are some simple steps to follow to calculate the BTU needed to cool our environment. It is highly recommended to perform a step at a time and write down the calculations that at each step will come out!
Step 1: Compute the area of ​​the rooms that we want to cool. To do this we calculate for each room the length and the width (the height of the room in this calculation we do not need). Then multiply the width to the length thus obtaining the square area of ​​this room. Now we add the various areas of the rooms previously taken into account. Since that for every square meter we need around 350 350 BTU multiply the sum previously calculated.
Step 2: We calculate also the sizes of the windows (height by width) present in the rooms that we want to cool. Multiply the square feet to 900 BTU if the window faces south and for 170 if it is exposed to the north. Recall that the south-facing windows are those that let in more light during the day.
Step 3: calculate the number of people who are usually present in the house (in our example) or in our environment that we want to cool. For each person considered 400 BTU.
Step 4: Let's look at our lights. Note the number of watts for each bulb and multiply it by 4.25 BTU. For example, a 100 watt bulb should generate 425 BTU.
Step 5: Check if you have any electrical equipment or machinery that will be running in the rooms to be cooled. Check the maximum power of the moltiplicartela and then to 3.15. Although the maximum power will almost never reached by the appliance is always a good idea to have an air conditioner that also meets these occurrences.
Step 6: We add the BTU calculated at each previous step. We so easily calculated power in BTU needed to cool our room!
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