Room Radiator Images

[John Evans]

First time I have scanned hot water system radiators, appears to be blockage at the top 1/3 of the two largest ones. Any thoughts on the cause, air lock or corrosion?

[David P. Valley]

John,

I find this situation quite a bit, especially the last image showing half the radiator heating up. I always recommend a Plumber to maintain the boiler and bleed the radiators.

[rbibler]

We don't see them things out in Calif any more. Brings back to old days as a kid back in Ohio.

Nice find.

Best

Ron

[Michael Larson]

Originally Posted by jevans

First time I have scanned hot water system radiators, appears to be blockage at the top 1/3 of the two largest ones. Any thoughts on the cause, air lock or corrosion?

Attachment 31209

Attachment 31210

Attachment 31211

Probably just air bound.

There should be an air bleed fitting near the top of the cast iron radiator.