The adjustments to convert net income to cash flow from operations generally. involve (1) adding the amount by which an expense exceeds the related cash expenditure for the period (for deprecia-. tion, the entire amount), (2) subtracting the amount by which a revenue exceeds the related cash receipt for the period.
Gas Furnaces: Cracked Heat Exchangers. The most common reason for a natural gas furnace to leak carbon monoxide is from a crack in the heat exchanger. The heat exchanger is the metal wall or tubing that is heated up when the burners are ignited.
Wood burning and gas-powered fireplaces are a common source of carbon monoxide in the home. Leaving the window open a few inches allows the circulation of fresh air in the room while preventing negative pressure build-up / backdrafting, which can draw carbon monoxide and other toxins into the home.here are many precautions you can take that will help your family avoid dangerous exposure to carbon monoxide. Click on any of the potential carbon monoxide sources in the house pictured below to read safety tips on how to stop carbon monoxide from invading your home.