How to bleed radiator in house: find the bleeder valve, turn counter clockwise until you hear a hiss, then wait until water comes out to shut it.

If you want to get the special tools for bleeding your radiators, the tools can be found at hardware stores or online fairly inexpensively. Alternatively, you may have small needle nose pliers that might do the trick.

Kobalt pliers used in the video: https://amzn.to/3Fbb3RI
Radiator bleeding keys: https://amzn.to/3H1sRQC, I may receive a commission if you click on the links.

Photo pf radiator by Hautala https://commons.wikimedia.org/wiki/Us...
CC 3.0: https://creativecommons.org/licenses/...