Cast-iron radiator for central heating
Radiador de hierro fundido para calefacción central
- Date
- 1855-1857 · confidence medium
- Place
- Saint Petersburg, Russia
- Credited to
- Franz San Galli
- Field
- Tools
⚠️ Disputed: the sources disagree.
What it is
A hollow metal element through which hot water or steam circulates, giving heat to the room air. Franz San Galli developed it in Saint Petersburg and it became the basis of household central heating.
In the United States Joseph Nason and Robert Briggs patented radiators in the 1860s; San Galli's development is dated to the mid-1850s.
What it led to
- central heating of apartment and office buildings
- boilers and hot-water circuits for the whole house
- modern panel and aluminium radiators