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After this method of cleaning is performed, assuming that the occupant maintains that furnace filter I previously mentioned to manufacturer recommendations, then cleanings may only need to be performed every 3 4 years or even longer if you invest in a high media filter unit. This method of cleaning is the safest form of cleaning in ensuring a reduced amount of mishaps and or errors at a jobsite occurs. Typically speaking, a company will use a glorified shop vac, various carpet cleaning hose attachments in conjunction with carpet cleaning machinery and or even a glorified shop vac with a spinning brush. Most contact cleaning companies will spend 30 minutes to 2 hours in attempting to reach as much ductwork that a person is physically able to reach. A small minority of contact cleaning companies will even make a good go at it and will spend up to 8 hours at an average residential jobsite. It is even fair to say that if a contact cleaning company spent all day, if the ductwork was completely exposed and if the ductwork was small enough, a contact cleaning company could technically perform a thorough job if the technician was motivated to perform a thorough job. The contact cleaning method of air duct cleaning is very limited in what dirt, dust and debris is actually pulled out of a ventilation and or HVAC system. 2” diameter vacuum hoses cannot suck up 3” diameter beer cans or soda pop cans. Due to the laws of physics in that a 2” diameter vacuum hose leaves behind all large diameter items, no airflow improvement is ever realized after the service is performed. Clumsy shop vac hoses usually cannot effectively clean through most furnaces burners, hence the ash, dirt, carbon and dust that can be found in these burners typically stay in the burners. This results in no efficiency improvement when cleaning out the burners, because the shop vac hose could not fit inside of the burners to properly clean it as compressed air or nitrogen can.

Posted by Anonymous at 3:19PM | (5 comments)

alarm system residential

An engineering professor and five students at Central Michigan Universityhave created a ''Smart Cane'' to read electronic navigational tagsinstalledbetween buildings to aid the blind in reaching their destinations moreeasily. ''This project started as a way for me to teach students to see andunderstand the ways that engineering can be used for the greater good,''said Kumar Yelamarthi, the professor and project leader. ''We wanted to dosomething that would help people and make our campus more accessible. '' During the spring term, Yelamarthi and five senior engineering studentstested the cane, which is equipped with Radio Frequency Identificationtechnology, similar to what retailers put on products to keep them frombeing stolen. The Smart Cane contains an ultrasonic sensor that is paired with aminiaturenavigational system inside a messenger style bag worn across the shoulder. For the test, the students installed identification tags between twobuildings on the campus in Mount Pleasant, Mich. A speaker located on thebag strap gave audio alerts when the system detected an obstacle and toldthe user which direction to move. Students wearing glasses that simulate visual impairment tested the cane. The students also created a vibrating glove to assist those who are bothvisually and hearing impaired. Yelamarthi said it's one of the first outdoor applications of RFID and saidhe plans for students in upcoming classes to further refine the systemwhilehe seeks grants to speed the research. The next step probably involves using the system in a wider area.

Posted by Anonymous at 3:19PM | (5 comments)

security systems for stores

No matter what time of day or night a customer calls in with a question or concern, Frontpoint will be ready to answer with knowledgeable, capable, and polite customer service representatives who are keen to help. Here’s a quick snapshot of some of the positives and negatives with Frontpoint:There are also a lot of options that go with Frontpoint, too, including door and window sensors, great keypads and control panels, and more. If there’s something you’re looking for in a home security system, you can probably get it with Frontpoint. You can also expect excellent customer service, an installation that’s fast and easy to setup, and a very low pressure sales approach that keeps you from feeling bothered about upgrade or additional purchases when you call in with questions or concerns. It’s a great way for the company to keep their customers feeling happy with their choice of security system. Although the technology is very advanced, it’s also very user friendly too, so it’s easy to get started once the system is installed, and then working your system is generally quite intuitive too. There’s also cellular monitoring and two way voice communication too as nice touches. The equipment is efficient, and if you choose their premium service, you’ll also receive a lifetime warranty on the equipment itself. That can go a long way toward protecting your budget and ensuring that you’re making the right investment. All of this means you can have peace of mind that you are well protected. The monthly monitoring cost is around $30 to $50 per month, and Vivint customer service will be excited to sell you their latest and greatest options.

Posted by Anonymous at 3:19PM | (3 comments)