In the past few years, we've accumulated five oil-filled radiators to
heat our very small house. The alternative is a gas "furnace" that was
installed when the house was built over fifty years ago. HUGE money
waster!

Two of the rollable oil-filled radiators have simply quit for no reason
I know of. Has anyone here diagnosed and repaired one of these units?
And Is it worth the trouble? I'd like to, if it's easy/cheap enough,
rather than buying yet another pair of them.

Thanks for your attention,
JPM