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Afterwards compressed air ranging from 150 psi – 250 psi air washes anything left by the brushes, to thoroughly and completely clean the round. Once all of the supply/heat pipes are cleaned a variety of different brushes, air whips and blow back jetters are employed to source remove all of the bulk matter back towards the power vacuum. This method of cleaning is superior for actually ridding the ductwork of all loose contamination because there is typically no cleaning obstacles presented by the ductwork that the self propelled mechanical and air tools can’t over come, as well as the fact that the sheer power of the vacuums not only effectively keeps all the debris contained, but has enough power to pull this debris out of the system. Most thorough mode of cleaning where a positive effect such as increased HVAC system efficiency is realized, increased airflow from supply rounds is realized, less HVAC equipment parts failure is realized or increased part lifespan occurs elimination of foul odors presented by isolated incidents where dead animals are presented, animal liquid and solid excretions occur and odor emitting mold/mildew and bacteria occurs and in some cases dust reductions are noticed depending on the amount of contamination that is present in a ventilation system. 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.

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Likewise, we found that using the system wasn’t as simple as abode, but is still better than the majority of systems we tested. Nest’s two year warranty is one of the best in our comparison. The main drawback behind Nest Secure is that it’s more expensive than other systems we tested at $400. If you want professional monitoring, Nest Secure has a partnership with Brinks Home Security that offers no contract $29/month and three year contract $19/month options. You can also use the system without monitoring, which doesn’t require a monthly fee. Read the full reviewAffordable MonitoringSimpliSafeLow StockSimpliSafe The Essentials$14. 99/mth?Visit Siteat SimpliSafeAffordable professional monitoringLimited smart home compatibilitySimpliSafe is one of the best DIY home security systems for professional monitoring, which costs around $15 a month. This is a lower price than Scout and abode, though it lacks smartphone app controls. Unlike the competition, SimpliSafe uses a cellular connection for its primary connection, something that other systems only use as a backup. The company also offers a great selection of security and safety sensors. The system is easy to set up and comes with a detailed instruction booklet.