Size of Pipe

CD

I what to kill the heat in my dining room and bring the heat up to a storage room right above the dining room. The pipe size feeding the radiator in the dining room is 1" and the radiator has 7 sections. The room is 11x9 and I get great heat. I would to move the same radiator to the room up above and not have any heat in the dining room because the heat from both the kitchen and living room alone is good for the dining room. I will be using the same radiator and the room is 12x8. Can I use 1" pipe to go to the room above or do I need to use a reducing coupling and increase the size to 1 1/4"?

Alan(CaliforniaRadiant)Forbes

One inch

should be fine; how you do it will be a function of what kind of system you have: steam or hot water? If steam, 1- or 2-pipe steam?

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CD

It is a Steam

system and 1-pipe.

Alan(CaliforniaRadiant)Forbes

OK

So, with the very little I know about steam, make sure you use black iron pipe and slope any horizontal piping at least 1 inch every 10 feet.

Anything else, Steamhead, Mark Hunt, et. al.?

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Steamhead

Good Start, Alan

But it would be well to ask a couple more questions:

First, is there already a radiator in the room above the dining room? If so, is it not working as it should? It would be easier to fix what's there than to add another radiator.

Second, does the dining room have any outside walls? If so, it would probably not be a good idea to remove the dining room radiator. If the kitchen gets too hot you can fix that problem, and run a new riser from the steam main to the upper room if needed. If you do, make sure the steam main and boiler can handle the additional load.

Third, do you know for sure that the heat loss of the upper room is the same as that of the dining room? It would be well to calculate the heat loss to be certain.

If you don't have a copy of Dan's book "The Lost Art of Steam Heating", get one. It is the best book on steam I have ever seen. Order it on the Books and More page of this site.

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Joe_13

Get a small BB style steam rad

To replace the old one in the dining room. Just to have some heat in the room on the coldest days.