This Puts Heat in the Same Class with Light and Water
An early ad from Williams Oil-O-Matic, which appeared in National Geographic. Thanks to Scott Massart
Heating Museum → Old Ads & Magazines Help Topics
Take a stroll through HVAC history in our Heating Museum. This section of our website preserves history and answers that so-important question: What the heck is that thing? Whenever you run across anything unusual, chances are you’ll find the old literature about it right here.