the picture i uploaded for my essay, is a picture i took at my moms house. this is her crawlspace. if you can see the insulation has been destroyed by water damage. you need to have a certified professional come out and replace this insulation.
i am writing my research essay on HVAC inspections. there are many different aspects of the HVAC inspection. there is the furance, all the duct work, the air conditioning unit, as well as hot water heaters. and dont go out and say thereis a crack in the heat exchanger.
Clay flue tiles that have gaps or cracks allow moisture into the interior structure of the chimney which eventually deteriorates the masonry structure from the inside out. More importantly, the gaps and cracks can cause health risks, by allowing poisonous gases to escape into your home. Combustible creosote or soot can also escape through these openings and build up outside the flue liner. If the creosote catches fire in this area of your chimney, serious damage can occur, because the fire can no longer be contained within the flue.
Clay flue tiles that have gaps or cracks allow moisture into the interior structure of the chimney which eventually deteriorates the masonry structure from the inside out. More importantly, the gaps and cracks can cause health risks, by allowing poisonous gases to escape into your home. Combustible creosote or soot can also escape through these openings and build up outside the flue liner. If the creosote catches fire in this area of your chimney, serious damage can occur, because the fire can no longer be contained within the flue.
In this photo we see a crack that has formed in the heat exchanger. This is a dangerous situation and it must be replaced. However it is a condition that is difficult to confirm without a professional HVAC inspection of the exchanger.
A fireplace may be modified to install a fireplace insert. This can use multiple different fuels like gas, coal, pellets, or wood. If the insert is later removed then the original damper must be checked because it may have been removed to allow the flue to pass through.
the thermostat is a component that operates the heating and cooling system of a HVAC system. it adjusts the comfort level in the home so that you are happy with the temperature no matter what the season. it can also do this automatically via a programable type unit.
This Trane Heat Pump unit is 24 years old and nearing the end of it’s service life( my own unit ! ).
The insulation on the suction line is in satisfactory condition. Concrete pad is cracked and slightly off level. I removed the access panel and found wiring with nicks, leaf debris at bottom of unit. Recommend service by qualified technician.
When inspecting masonry chimneys we look for liners as they are required. Some chimney may not have a liner due to time of construction but they are highly recommended as they can prolong the life of a masonry chimney.
Liners can be Clay tile or metal piping. A metal liner can be snaked into an existing chimney.
A masonry chimney should have a mortar cap to protect the areas between the liner and chimney itself. Flue caps/spark arrestors are great for keeping rain and critters out.
Any gas fired equipment that is vented into a Chimney should be flush at the inside wall of the chimney flue to provide proper drafting of gases.
Cleanouts should be installed 6" below these vent systems and be 6" in diameter to allow access for cleaning and inspection.
Single wall vent pipes should have a 6" clearance from combustibles, B-vent needs 1" clearance from combustibles.
There is a gas heating unit in the living room. There may not be appropriate ventilation when windows are closed to discharge or dilute dangerous carbon monoxide gases that will be produced from the gas fired unit. There is also no fresh air intake which means oxygen levels could be depleted from combustion. Many of these convenient units advertise as vent free heating products. However, installation in an area of the home with little or no fresh air ventilation can be extremely dangerous. A qualified licensed HVAC contractor should further evaluate the need for. At the very least a carbon monoxide and oxygen detector should be installed in for safety.
A home owner that has purchased a home that is conditioned using a heat pump may be confused and or startled in the winter when the system is in the defrost cycle. Informing the homeowner of the systems operating procedures during the inspection may be beneficial to the homeowner and prevent unnecessary concern.
This is a picture of a vent pipe on a natural gas furnace horizontally mounted in a crawlspace I don’t remember if the furnace was blower induced but my concern was with the lack of a seal were this pipe connects to a masonry chimney and secondly the pipe material that enters the chimney the instructed talked about single wall and B vent type flue pipe. He did touch on a type of chimney lining pipe I don’t know if this is what he was talking about or not. The pipe also has corrosion before it connects to the flex.I recommended further evaluation by a qualified licensed and insured contractor. you could also comment on the proximity to combustibles.
I chose the article on the legal aspect of drones. There is a ton of information in the article one area that was touched on was changing your inspection agreement but the problem I have was the wording that said you are giving me permission to fly over your home. Well the buyer really isn’t the owner. A disclaimer that the drone pilot isn’t responsible for damage seems a little standoffish as well why would someone not hold the operator responsible ? I like the idea of using one but making sure the neighbors knew what was going to happen I think would be a priority of mine maybe InterNACHI could make up some door hangers that could be left behind prior to an inspection just a thought.
The air handler in this image was manufactured in 2015. After checking the return and supply air that this unit uses, it seems to work as required. It had a 16 degrees Fahrenheit temperature difference between the two. Also, no rust or damage was noted during the inspection.
I have learned that when inspecting the air handler you must be careful with the cover plates for the evaporator coils and fans. The covers have to be alligned perfectly to be re-installed.
As for the inspection of these units you must look for rust, damage, arcing from faulty wiring, and also ice on the coils.
Here we have what seems to be a brand new medium efficiency furnace. A humidifier is also installed and has no visual evidence of leaking at this time. I had thought the whitish substance visible was perhaps evidence of some condensation, but on closer inspection was just dust. Looks good.
Inspection of an HVAC system is a good idea for any homeowner… this can save on costly repairs or replacement of faulty units. Generally, the most common thing seen is evidence of condensation. This manifests itself with rust,or whitish residue where water has been pooling and sitting. These issues mean that there is a fault in the system and should be attended to by a licensed HVAC contractor.
My essay is on air condition clogged filter.I learnt that a clogged air filter prevents air flow causing the coil to freeze up and drip water.Then it pulls air from the condensate line preventing it from draining So keep your filters clean
My essay is on this old broken down out side unit.That is very bad shape has been unhooked from the house dont think it is running shape.I think the unit is ready for the scrap yard even if it did run cost you a fortune to run it.
Inspecting and identifying the basic components of the furnace is required when inspecting a home. You must identify the fuel source, distribution, airflow type, gravity or air forced, efficiency, and ignition source. Most importantly the inspector is attempting to identify any material or future potential defects in the furnace the homeowner needs to be aware of. Keeping in mind this is a visual only inspection using normal controls and many of the components of the furnace are concealed within the furnace walls. This presents a limited evaluation of the components and should be explained in the written report.