How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
How do I tell the age of a Ruud water heater from the serial number?
Tuesday, September 11, 2018
The third and fourth numbers in the serial number, usually after several letters, is the year of manufacture of a Ruud water heater. So the manufacturer’s data plate below indicates that it was made in 1985.
Newer Ruud water heaters, like the one with the label below, make it easy for you: the manufacture date is also stated to the right of the serial number.
To determine the age of another manufacturer/brand of water heater, go to How do I determine the age of my water heater?
To find the age of other home components, go to How can I find out the age of a roof? and How do I determine the age of an electrical panel? and How do I determine the age of my air conditioner? For life expectancies, visit What is the average life expectancy of the components of a house?
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Field Guide for Home Inspectors, a quick reference for finding the age of 154 brands of HVAC systems, water heaters, and electrical panels, plus 210 code standards for site-built and manufactured homes, and the life expectancy rating of 195 home components. Available at amazon.com for $19.95.
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