I emailed Lochinvar and asked them to send me information on how to decode their serial numbers for the date of manufacture. This is what they sent:
Sweet! Thanks for sharing.
this couldn’t have came at a better time. I just inspected a lochnivar water heater this afternoon.
thanks for the info!
I thought it would be wise to have something in writing from the company. I also emailed
Bradford White and Rheem have it on their websites.
I hope this worked, Ive never attached more than one item before.