Installing 'new' old cast iron radiators

John_34

I'm going to be installing cast iron radiators in an addition we're building. 5 rooms in all. Hot water heating, and I'd like to zone the new rooms and the rest of the existing house. How big should I drill holes to run the 3/4" copper tubing? Can anyone recommend a good book on the subject of zoning? Any other advice would be welcome as well, thank you!!

Steamhead

Start with these two books

from Dan: "How Come?" and "Pumping Away". These are two of the best I've seen on hot-water heating. You can order them on the Books and More page of this site.

To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"