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Early 1900's Radiator Questions
I have a 1909 foursquare, one pipe system. I have to replace one of two radiators in the living room as one of them was replaced at some time with a smaller radiator not providing enough heat for the room. The existing radiator that is staying is an ARCO Roccoco model with a single "pipe" only across the bottom and the vent tapping is about 2/3 of the way up the side. Now, the one I sourced is a Roccoco that was also used in a steam system, but, it has a "pipe" across both the top and bottom of the radiator so slightly different. The vent location is about 1/3 of the from the floor. At first I thought I screwed up and it was for hot water, but the tapping at the top has never been drilled whereas the lower one was. I did some research and found that the one I sourced was pretty much made for both hot water and steam after 1905 (thank you heating help articles).
Now my question. Is there anything I should be aware of with this different design or will it work just the same as the single pipe radiators I have? I seems to me the new one will heat faster due to the pipes being across both top and bottom.