A door closer is a device that enables a door to close whenever someone opens it or if is automatically opened. These are commonly seen in lots of commercial buildings.

Are there different types of door closers? Yes, there are different types of door closers. They can be concealed in frame and concealed in floor or surface mounted. Closers that are surface mounted have four different types. These include the regular arm, top jamb mounted, slide track arm and the parallel arm. Overhead type closers are mostly surface mounted, even though there are a lot of manufacturers that offers concealed models also like Norton 7900 overhead concealed and the Rixson 27 series. These are mounted inside of a pocket of the door frame though sometimes they can also be mounted in the floor under the pivot area directly and are concealed completely. The surface mounted ones are those with the small boxes attached on the door’s top corner. The arms that are jointed are the ones extended from the top level of the box on to the frame where this is bolted in.

Door closers have two distinct kinds: automatic and manual. The ones that we mostly see and are more common are the manual type door closers. There are over 70 percent of commercial buildings located in North America are using manual type of door closer.

How does a door closer works? Manual Door Closer – Either the jamb mounted or the overhead works on the air pressure principle and stored energy. This device is storing the energy that is being generated whenever somebody pushes the door open. After the energy has been generated, it will then use the stored energy to close the door automatically even without someone applying any force to close it. It is also equipped with hydraulic damper or spring mechanism which enables you to control its closing speed.

An automatic door closer on the other hand uses a different mechanism. These kinds of door closers are using electrical power instead of the energy that is stored by a human. This kind of door closer is usually more expensive. This most of the time comes with a remote control for the device and a security alarm that you can turn on whenever you need it. The automatic door closer is less common compared to manual door closer because of the amount of power that is required for it to operate, the price is higher and people usually are into conservation.

Importance. Now that we have learned the basics of door closers, you may now choose what is best for you. Why do you need anyway? Well actually these provide you a lot of advantages. Door closers are important because it helps contain sounds from outside of the door, closes the door for security purposes and privacy. Whenever the temperature changes, wind or gusts a door may swing out of control and may be very injurious to very old and very young people. That is why the door closer can also be a safety device that can protect or reduce a potential injury to someone. A door closer is also very critical in fire doors to prevent spreading of fire. Also, it allows people to pass through easily during emergencies.

It is essential for a house to have doors. This will serve as your entrance and exit in any office or home.That is why it is suggested to add electronic door closers so you can freely move in and out without having to worry that it is left open. Or you may want to try combination lock box.

Lock boxes have plenty of applications, their versatility demonstrated by their multiple uses in enterprises as varied as real-estate firms, banks, stores, and private homes. These devices provide both security and convenience, probably the most common of its applications being in the real-estate industry. For example: a house is put on the market and it follows that a good number of prospective buyers go in and out of the house to look the place up.

But times the way they are, with vandalism and home invasion (including houses with no inhabitants yet) an all too common occurrence, it is not advisable to leave a house constantly open for viewing. Neither is it practical to have someone always available with the traditional key or card key to provide entry all the time to potential buyers. That is where the installation of lock boxes comes in handy to provide real-estate agents convenient and secure access to a house.

Lock boxes are even more useful for domestic application, providing convenient entry to members of the family who cannot synchronize work or school schedule with the rest of the members. With parents now finding employments outside the home especially with their children grown up and in school or at work, not everyone can be at home at the same time. A lockbox on a door is particularly useful for kids who will never be stranded again outside their home after losing the keys.

There are people who are not family members who need to enter a home: housekeepers, plumbers or telephone repairmen. A homeowner can allow entry to a stranger who has to do some sort of service inside the house while he or she is away at work or traveling. The homeowner can conveniently alter the lock combination after service has been done inside his house, apartment or condominium.

Hung on a door knob or mounted, lock boxes are installed on flat surfaces for secure fastening. They can also be screwed on to railings or fences. This versatility makes these devices very useful indeed.

Lock boxes are places where you can keep valuable documents and jewelries as well as home keys should you be outside your home or office. This allows you to have peace of mind and never have to worry about losing things in your home. You could also try supra lock boxes.