Heating Museum → Old Steam Help Topics

This article by Henry H. Aronson about venting unit heaters appeared in Heating, Piping & Air Conditioning magazine. Thanks to T.P.

This patent contains the very best description of a water seal trap's role in vapor heating. This is courtesy of Steve Pajek. 

Here is a nice mailer from American-Standard Heating and Plumbing with lots of information about their radiators and convectors from 1946. Thanks to Kirby Slear for scann...

This is a circa-1956 installation manual for American-Standard Radiantrim baseboard panels.

Here is a colorful brochure from American Radiator in 1930 announcing the Arco Radiator. Thanks to Robert Reape for sharing this with us.

This chart is from the U.S. Department of Commerce’s National Bureau of Standards, published on July 19, 1935. For a number of years this subject has received considerabl...

Thanks to Gerry Gill for sharing this Mouat Vapor Heating System proposal from the early days of steam heating. Note the nine-ounce setting on the relief valve. You don't...

Stephen Gold was the inventor of the first radiator, the "mattress" radiator. Here is is patent for his boiler, which appeared nine years later. Much thanks to Gerry Gill...

Gold's Mattress Radiator was invented in 1854. It is in its final days here in this 1898 Heating and Ventilating magazine ad.

Here is an excellent piece about pneumatic controls for heating systems from an old-school leader in the field, Johnson Controls.