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  #11776  
Old 4/22/18, 6:10 PM
Mark Gilvary Mark Gilvary is offline
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There are many things to look for when inspecting a fireplace and the chimney. The flue must extend four inches past the cap. The cap can not be deteriorated. The damper inside the fireplace can not have any signs of corrosion. Also the mortar joints need to be inspected as well.

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  #11777  
Old 4/22/18, 6:21 PM
Jean-Michel Telhomme's Avatar
Jean-Michel Telhomme Jean-Michel Telhomme is offline
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The chimney is the most vulnerable exterior component. It can collapse during earthquakes and cause fatality.Periodically the home owner should look for crumbling mortar,separation gap from the building, deteriorated footing caused by frost, soil erosion below the footing. The house resident should also be aware of the areas in the house were a chimney can collapse and stay away from them during an earthquake.

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  #11778  
Old 4/22/18, 10:50 PM
Fran Grenier Fran Grenier is offline
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The attached image contains the gas vent pipes from my natural gas boiler and water heater. This is a good example of two exhaust vents stacked properly. The larger appliance, the boiler, is the lower vent and the water heater vent is on the side of the chimney. Originally these two vents were at the same level entering the chimney. When the boiler was replaced, the HVAC technicians properly oriented the vent pipes.

Student discussions of "How to Inspect Fireplaces, Stoves, & Chimneys" course
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  #11779  
Old 4/23/18, 12:10 AM
Jeff Madderra Jeff Madderra is online now
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CHIMNEY FLASHING
Chimney roof leaks are preventable. Proper flashing while a roof is installed is worth many years of piece of mind.Chimney leaks are a duel hazard and an easy prevention. Chimneys are a critical part of most homes. A leak around a chimney can cause over ten different problems from detachment to thousands of dollars in repairs. Only use licensed contractor once a re-roof is determined.

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  #11780  
Old 4/23/18, 7:13 AM
Fran Grenier Fran Grenier is offline
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Reviewing image titled 'improper-vent-connector-1.jpg', some key points to always look for include that the vent connector piping contains as few bends as possible and is as short as possible. Additionally, if possible, check that the vent connector does not extend too far into the chimney/flue. This could obstruct proper flow. Be aware of clearance requirements to combustible material.

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