Before I explain where to install Carbon Monoxide detector alarm and show you recommended CO detector alarm locations in your home, let me list a few areas where CO detectors are not required. However, if they are required and you have them installed – make sure to put them on a house maintenance priority list.
Gas burning appliances vent pipes produce heat when discharging exhaust gases to exterior.
Temperature of the vent pipe is transferred to the surrounding area and all the materials that are in the vent pipe vicinity. Problems start arising if those materials are combustible and located to close to the furnace, water heater vent pipe. If you apply heat to a combustible material for some period of time (that varies between materials), its point of ignition will gradually get lower and eventually little heat will be required to start a fire – that’s why you need a clearance between the vent pipe and a combustible material.