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Marysville HVAC Codes

We often take the heating of our homes and work spaces for granted, but when it doesn’t work properly, it’s not always the most convenient time to fix or clean it. Save yourself the hassle and have your air ducts or furnace cleaned, repaired or installed if it needs to be replaced to provide the cleanest air for those in your household or work space. You may even be looking to get a newer and more compatible furnace, but what are the qualities that make up a good furnace? This article will cover how you can select the best possible furnace for your home, what the coding requirements consist of for your HVAC system in the city of Marysville and how to select the right person to have your furnace and air duct codes installed or cleaned.

First things first when purchasing a new furnace. You want your furnace to be as efficient as possible, which is why it is a good decision to look into a furnace with the highest Annual Fuel Utilization Efficiency level. Many oil heated boilers are listed at a 90 percent efficiency level, however most propane and natural gas furnaces are listed at 95 percent. If your furnace has a higher efficiency level, then it is going to regulate its use of gas better causing you to save more money on your heating bill. It is also important to consider the safety factors of furnaces, which is why it is important to make sure that your furnace is a sealed combustion furnace to prevent the escape of carbon monoxide in your home or building. Some HVAC systems will end up creating an uneven displacement of heating in rooms and also unnecessary noise within the ducts. The variable speed technology not only helps reduce heating costs, but it also captures more of the contaminants in your air ducts while also using less electricity. You may also want to consider a furnace with two-stage heating to keep a consistency of the heating in your home without having to function at the full heating capacity and not having different temperatures in each room. One of the most important factors to look into when buying a new furnace is the warranty because you never know when something will go wrong and it would be most efficient to have your furnace repaired for free as opposed to paying outrageous fees. Most warranties are good for a 20 year time frame on the heating unit and most parts within the system are good for 5 years.

The city of Marysville adheres to the requirements listed in the Washington State Energy Code for furnace and air duct discrepancies. For air ducts that are assembled in floor and ceiling, the duct work must be located inside a conditioned area,insulated and sealed to the same levels as the grade walls located above. If you are replacing or repairing HVAC equipment, the duct testing will require an air handler replacement, an outdoor condensing unit, cooling or heating coils and a furnace heat exchanger. Currently duct testing is only required, you do not have to have all ducts sealed.

The Washington State Energy Code states that equipment types featuring boilers and hot water that are gas fired must be less than 300,000 Btu/h with a minimum efficiency level of 80 percent. If you are using an oil fired furnace featuring a boiler and hot water system, it must also consist of an efficiency of 80 percent and less than 300,000 Btu/h. Boilers that convert to steam require that gas fired furnaces be less than 300,000 Btu/h, but must have a minimum efficiency of 75 percent. For oil fired furnaces using a boiler that converts water to steam, they must be less than 300,000 Btu/h and have an efficiency of 80 percent.

Whether you’re looking to replace your current air ducts and furnace or just have them cleaned, it may be beneficial to you or your company to make sure that your heating systems are up to date with the correct coding. If you are looking for other coding regulations for the Marysville area, log on to or for cleaning and contracting purposes.