The first commercial cold fusion technology is emerging as a hot-water boiler to make useful steam and hot water.
An old Architectural Record from December 1925, with no cover but otherwise in tact, contained eight advertisements for hot water boilers and a lone oil heater for domestic use in the US.
It’s amazing that, despite the technological advances, some things will never change. Hot water and steam are beloved by humans.
![1 American Radiator Co-Distribution Map for US 1925 American-Radiator-Co-Dist-Map](/wp-content/uploads/2012/03/1-American-Radiator-Co-Dist-Map-1925.jpg)
![2-HB Smith Boiler Testimonial 2-HB Smith Boiler Testimonial](/wp-content/uploads/2012/03/2-HBSmith-Boiler-testimony.jpg)
![3 Todd Oil Burner 1925 3 Todd Oil Burner 1925](/wp-content/uploads/2012/03/3-Todd-Oil-Burner-1925-web.jpg)
![4 Bryant Heating 1925 4 Bryant Heating 1925](/wp-content/uploads/2012/03/4-Bryant-Heating-1925-web.jpg)
![5 Riverside Boilers 1925 5 Riverside Boilers 1925](/wp-content/uploads/2012/03/5-Riverside-Boilers-1925-web.jpg)
![6 Aero Radiators 1925 6 Aero Radiators 1925](/wp-content/uploads/2012/03/6-Aero-Radiators-1925-web.jpg)
![7 Excelso Heaters 1925 7 Excelso Heaters 1925](/wp-content/uploads/2012/03/7-Excelso-Heaters-1925-web.jpg)
![8 Merion Heaters 1925 8 Merion Heaters 1925](/wp-content/uploads/2012/03/8-Merion-Heaters-1925-web.jpg)