Surveying the dark basement of a Boston-Edison historic home, I stumbled across a rusting indoor oil storage tank. Stamped boldly on its front are the words "Silent Automatic Detroit".
With some research, I discovered that this was probably an old storage tank that accompanied a Timken Silent Automatic Oil Boiler system. Equipped with the famous Wall-Flame Oil Burner, the oil fueled system was designed to out perform its hard-coal fired rivals.
A Schenectady Gazette advertisement from March 10, 1931 proclaims eight buying points:
1. A Product of a Great Engineering Organization
2. Low Purchase Price
3. Cheaper Grade of Oil (use #1 or #2 oil)
4. Fuel Economy
5. Save Cost of a Gas Pilot (with the slight up charge for an electric ignition)
6. Hot Water Supply (system can supply both heat and domestic hot water)
7. One Model for any Site Home (models for "modest homes" are the same as those installed in "more wealthy neighbors")
8. Installation By Only Factory Trained Men
Complete installation is listed at a depression era $335 (oil storage tank extra).
The boiler's only moving part was the Mono-Roto. It "whirls tiny droplets of oil outward against the chromium-steel flame rim... In a few seconds after the burner starts, the flame rim becomes glowing hot ...[as] a blue-hot flame... blankets the fire box walls for the quick transfer of heat."
A division of the Timken-Detroit Axle Company, the 32 acre main manufacturing plant was located at 100 Clark Street in Detroit, Michigan. Other plants were located in Jackson, MI, Oshkosh WI, Utica, NY, New Castle, PA, Ashtabula, OH and Kenton, OH.