A question about house radiators in U.S.A.

[nasadowsk]

The old B&G 100s weren’t a bad pump, but you had to lubricate them every year in the fall, and the motor mounts sagged and needed replacement every few years. And sometimes (always a cold weekend), the seals would start leaking. That sucked to fix.

The can-type pump showed up in the US in the early 70s, and became popular. Much quieter, more reliable, and they don’t leak, or need maintenance.