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Tony[_19_] Tony[_19_] is offline
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Default Why are radiators made of cast iron

zzzzzzzzzz wrote:
On Mon, 08 Mar 2010 21:50:12 -0500, Tony wrote:

It shouldn't be a problem unless you change the thermostat a few times
daily. And if you do, set the setting on your electronic thermostat to
change the high/low settings an hour ahead, or more or less to suit your
conditions.


You have to do that anyway, with hydronic heating. However, it still matters
if you decide that it's too cold and ask for more heat. For homes, cast iron
has no advantages, some disadvantages (some major, some minor), and is more
expensive than copper/aluminum. It's got nothing going for it outside of
hype.


OK sure, cast iron is all hype like you say. There is no comfort gained
when using a heating system with a lot more mass. Just like there is no
comfort gained with hot water baseboard vs hot air. The copper,
aluminum, and mostly the hot water left inside convectors doesn't have
any more mass then hot air. Yes you are correct, no one likes hot water
baseboard more than hot air. Just because it has more mass than hot air
doesn't make it any better. You are right.