To determine the age of an HVAC system or water heater, begin your research by locating the brand name and serial number on the HVAC system or water heater. Visit the appropriate index page from the menu or buttons above where alphabetized lists of manufacture brand names have been provided.

December 26, 2023 - Turn off the furnace and look at the fan blades. Some manufacturers stamped the date on the fan. Once you’ve found the serial number, examine the first four digits.

Where is the serial number located on your Central Boiler outdoor furnace?

If you lose those manuals, you can find the Coleman serial number on the data tag inside the unit. It is not difficult to find where this sticker is located. See the example in the following image.

Find out how to read the serial number and where to locate the data plate on your York HVAC unit in our easy-to-follow guide.

This "How to Locate Your Furnace Model and Serial Number" video guides the viewer through how to find, identify and use the information on the manufacturer data sticker to determine the series, model and revision information necessary for ordering the correct furnace parts your particular furnace at www.HvacPartsShop.com.

You can find the model and serial numbers (M/N and S/N) for your furnace by removing the top-front service panel and looking to the left side of the interior cabinet or the top of the blower deck, depending on whether your system is an 80% or 90% AFUE unit.

August 27, 2024 - Here are some examples of how to interpret the serial numbers for some leading furnace brands: 71422L41G (7 represents the year and 14 is the week = April 2007) 12331234B (12 represents the year and 33 is the week = August 2012) M3P45678 (M represents the 1st month and 3 is the year = January 1983) 920545678 (92 represents the year and 05 is the month = May 1992) ... If your online search doesn’t lead anywhere, try contacting the manufacturer directly.

You can also use this form to LEARN THE AGE of your unit to determine if it is still in warranty, please click here to download the Serial Number Code/Age of Unit form pdf.

September 8, 2022 - If you didn’t purchase your furnace, or you can’t locate the installation paperwork, you can determine your furnace age by serial number by following these steps: Locate the sticker that lists the model and serial number of the unit.

May 18, 2025 - If you are unable to read the label you can look down into the condensing unit from the top to see the compressor and often use the compressor part number to determine the tonnage using Google.

September 9, 2022 - Most furnaces should have a sticker listing the serial number and manufacturer either on the exterior or inside the removable door on the front of the unit. When you find it, write down the serial number and search the manufacturer’s site or manual for decoding the date format.

Answer (1 of 3): Each brand has a type of serial number identification. Date of manufacture, size, voltages, gas type, etc. They are not all formatted the same, but the information can be found on the web most of the time. If not, the manufacturer will be able to help you out. Usually, the firs...

December 16, 2024 - You’ll usually find this number on the nameplate or label attached to your furnace, often on the inside panel of the unit. Decode the Serial Number Carrier uses a specific coding system for its serial numbers.

December 27, 2024 - Common locations include the front or side of the indoor air handler or furnace, the outdoor condenser unit, or the back of the unit in some cases. Check both the interior and exterior of the unit to ensure you locate the label.

April 2, 2024 - The easiest way to determine your furnace's age is to identify your furnace serial number, visit Rheem’s “How Old Is My Furnace” webpage, and type your serial number into the search bar. If you still need help determining your furnace's age, contact your local HVAC contractor for assistance or continue reading below. You could argue that our residential HVAC systems are the backbone of our household's climate. Utilizing your central HVAC system allows homeowners complete control over their home's climate, regardless of where they live.

The furnace nameplate is located on a side panel behind the front panel of the furnace. Accessing the nameplate will require removal of the front door

December 16, 2024 - The rating plate is typically on the inside of the furnace cabinet door. If you cannot find it, look near the blower or the control panel. The serial number on an older furnace, the serial number might be stamped directly on the metal cabinet.

The model and serial number can be found on the rating plate on the inner wall of your furnace or air handler. A dealer should be involved in accessing the serial number.

September 21, 2022 - One way to determine your furnace's age is by looking at the manufacturer's label. This label is typically included on newer furnaces and is often affixed to the front of the unit. It will have the date of manufacture listed on it. If you can't find the manufacturer's label, or if it has been removed, you can also look for a serial number.