Janitrol A member of the Goodman family of furnaces. This list is not an all encompassing list, however, a contentious effort was made to provide the correct information to assist in determining the age of the water heater despite the numerous manufactures and the variations of dating codes.
First, when dating a water heater, first look at the data tag, the manufacturing date may be displayed on the data sticker.
We admit it! At Canada Furnace, we sell and install a lot of furnaces. From informal surveys it would appear to be the most popular Lennox gas fired furnace.
The date of production/manufacture or age of Lennox® HVAC equipment can be determined from the serial number located on the data plate. Hello Everyone, I have a serial # from a lennox HVAC unit, could someone give me a definite on the yr. Join Date: Feb (This serial number is from an actual furnace unit transcribed during a home inspection).