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Re: Zoning Steam Heat


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Posted by Heatpro on May 09, 2010 at 20:03:23:

In Reply to: Zoning Steam Heat posted by Steve Kouroyen on May 09, 2010 at 08:58:06:

It is a bad idea; because a steam boiler has to serve the maximum radiation of the entire building, then the part that would shut off has to handle the resulting air intake, while the other part cycles.

To do so usually requires a change from one-pipe one-pound pressure to two-pipe 5 psig to handle the on-off nature with traps. This can be expensive.

If you are going to do such a radical overhaul it is better to convert to hot water heat where such problems don't exist and a payback can result from higher efficiency.


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