hm well i'll bite I guess.
Radiators are heaters for houses not just engine cooling devices. Old fashioned I think but for that don't have central air or radiant floor heating it is one way. Here is a portable one people use for space heating. Tried but couldn't find a pic of one made in the US

When I lived in Connecticut all my houses either had baseboard radiators or steam radiators to heat the house in the winter. There are a couple in my current Texas house too. I put my helmet and a couple things down on one because it was a handy spot to take them off.