Posted by Mike on October 16, 2001 at 23:51:15:
I have a very old and large boiler in my house. The output is about 240k BTU.
I am upgrading for efficiency reasons, and have gotten some quotes that are
for one large boiler, and some that are for two smaller boilers hooked to
different zones of the house.
I'm trying to decide if one boiler or two are more efficient. The house is very open,
with the rooms fairly open to each other, and no zones are completely walled
off from the other zones, so I'm thinking that separate boilers for different zones
won't help much because they will either both run or neither (since most of the
house is open and therefore should be a similar temperature).
The other idea I thought of is putting two boilers in series. Then one boiler will
have hot water running into it when the other boiler can put out enough heat (when
the temperature is not real low), thereby only really running one boiler. Then
when the temperature gets real low, one boiler will not put out enough heat,
and the other boiler will have to kick in.
Any comments or suggestions?
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