Cast-Iron Radiator Restoration: Removing Old Pipe Nipple to Make Way for New Fittings
Bob "Hot Rod" Rohr of Caleffi shows how to remove an old pipe nipple to make way for new fittings when restoring a radiator.
Hot-Water Heating → Radiators Help Topics
This section is your guide to hot-water heating systems with information about system design and piping, air elimination, pumping away, primary-secondary pumping, valves, radiators, troubleshooting tips, and more.
Recent Articles in Hot-Water Heating → Radiators
Radiator Paint Colors
Ever wonder why so many of the old radiators you see are painted silver? Back in the day, they were mostly plain grey metal, but then the Spanish Influenza arrived during...
Old Radiator Ratings
If you're replacing a steam boiler, there's only one right way to size that boiler, and that's to measure the radiators. If you're replacing a hot-water boiler, you'll do...
How Do You Paint Cast-Iron Baseboard Radiators?
This past summer, we had Burnham BASE-RAY cast-iron baseboard radiators installed in our home. One of the benefits of BASE-RAY baseboards is that you can paint them to co...
Mixing Passive and Active Heaters Can Lead to Problems
Sometimes, you just have to think like air. The house had been sitting on this old Connecticut street for more than 100 years. Children, grown and long gone, had once ski...