This is a very serious issue and a furnace MUST be installed by a licensed HVAC technician. document.getElementById("countdown").innerHTML = "in " + days + "d " + hours + "h " + minutes + "m "; Furnace exhaust is dangerous and so having the right furnace exhaust pipe is important. When the vent is withdrawing air from the house, it expels the gas outside through the vent. If you have an 80% efficiency furnace, then you need a metal flue pipe. Gas burning appliances vent pipes produce heat when discharging exhaust gases to exterior. 1. The furnace is equipped for installation in natural gas ap-plications. The vent outlet must be installed a minimum of 12 in. // Find the distance between now an the count down date Learn the important factors of venting high-efficiency furnaces. } A metal flue pipe is built to withstand that level of heat and won’t melt, but the plastic PVC pipe is not. of 55 to 80% for older furnaces, boilers, and water heaters, and up to 78 to 82% for newer systems. View our Privacy Policy here. You may freely link It ignites for approx... how to shut off this type gas valve in furnace? escape into the house. All new appliance installations will comply with new code requirements, including replacement appliances. The 2″ pipe leaves the furnace and connects to the 3″ pipe at the first turn. var distance = countDownDate - now; If you're not sure you have the necessary expertise to handle the equipment, tools, and materials required to vent a gas furnace, don't hesitate to hire a professional. var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)); Also, make sure the pipe meets the height requirements and adhere to the 10-3-2 rule. By preventing these gases from contacting other combustible items, your vent will also prevent other possible fires. But I got stuck when tried t... How to Select Gas Valve Replacement for Old Furnace. I don't think they are making this o... Venting a Gas Furnace Through the Chimne... Venting a Gas Furnace Through the Chimney. The single stage mid-efficient furnaces Category I vent connector size and type shall be determined by appliance input and total vent height. Check it out! Combustion products must be discharged outdoors. This is known as the house stack effect. var days = Math.floor(distance / (1000 * 60 * 60 * 24)); This is an alternative to the standard two pipe intake/vent shown in the basic furnace installation instruc-tions. Different types of furnaces require different types of flues. The vent pipe of your gas furnace plays an important role by carrying all toxic gases created during the combustion within the furnace out of the building. Suitable materials for the vent and condensate pipes include PVC (polyvinyl chloride), CPVC (chlorinated polyvinyl chloride), and ABS (acrylonitrile-butadiene-styrene) plastic pipe, depending on the furnace’s specified exhaust gas temperature. var seconds = Math.floor((distance % (1000 * 60)) / 1000); In a great majority of cases, plastic piping is used to vent high-efficiency equipment. We welcome your comments and 8. The installation of the furnace, wiring, warm air ducts, venting, etc. The installation for this natural type is quite easy with modest cost. What do you think will happen? // Time calculations for days, hours, minutes and seconds The vent pipe of your gas furnace plays an important role by carrying all toxic gases created during the combustion within the furnace out of the building. 3 Different Types of Gas Furnace Vent Pi... 3 Different Types of Gas Furnace Vent Pipes Explained. These pipes are not only environmentally friendly for residential use, but also authorized for use by regulatory bodies and insurance companies. The outlet/inlet of the vent and air intake terminations shall be a minimum of 12 inches above highest anticipated snow level. The single wall vent connector total length limits shall comply with either Table C.9 All water heater vent connectors shall meet the requirements of the venting tables. First, consider the ambient temperature of the air around the vent pipe. } Category IV Direct Venting Intake and Exhaust Pipes •PVC allowed (140°F limit) •Furnace/Water Heater/Boiler Manual –Size of pipe and allowable lengths (support) •Terminations –Through wall or through roof –12” above grade or anticipated snow level –In same pressure location –Concentric venting kit … DoItYourself.com®, founded in 1995, is the leading independent Some models of single-wall metal flue vents need … document.getElementById("countdown").innerHTML = "in " + hours + "h " + minutes + "m " + seconds + "s "; Use silicone caulk to seal all joints and seams on the metal pipe, as well as on the gas furnace and chimney. Vent pipe that is too small in diameter will not adequately exhaust flue gases to the outside atmosphere.