Weekly
Column
This Is A Hammer
By
Samantha MazzottaRadiator Tips
Q: I recently
moved to the Northeast and purchased a converted
loft that is heated by an old radiator system.
While it seems to give off plenty of heat, the
radiator makes all sorts of funky noises from
time to time. Can I fix this problem without
having to call in a repair person? Charles
M., Boston
A: Keeping an old
steam radiator system in top shape is practically
an art form one that in many areas of the
country is slowly becoming a lost art as the
number of experienced steam-heat repair
professionals diminish. Luckily, youre in
an area where hot-water and steam heating systems
are still fairly common, and a good number of
pros are available to fix problems that arise.
The problem of
noises banging noises, mostly
coming from a radiator is one that can likely be
resolved on your own. Simply adjusting the height
of the unit at one end may be all that is needed.
Check the support
legs at the bottom of the radiator. If there are
bolts in the legs that can be turned to adjust
their height, great. If not, youll need
shims (basically, thin pieces of wood or metal)
to make this adjustment. Next, check the type of
pipe system: a one-pipe radiator has a single
pipe (usually located near the bottom) for both
the steam and condensate to enter and exit; a
two-pipe system has a pipe near the top (for
steam to enter) and a pipe near the bottom (for
condensate to drain).
Whats the
difference? If your radiator is a one-pipe
system, you need to tilt it slightly to allow
condensed water to drain out through the pipe. If
its a two-pipe system, water must drain
into a special trap that allows it to cool down
before being drained. So, locate where the
condensate actually drains before shimming the
unit.
Open the
radiators steam valve fully (place a bucket
or towels beneath it and be careful its
hot), then tilt the radiator up toward the trap
or pipe by either turning the height adjustment
bolts on the legs or inserting shims of
appropriate width underneath the legs. Close the
steam valve.
If the height
adjustment doesnt resolve the noise issue,
dont lose heart. Old systems often develop
a lot of problems due to excess silt and
corrosion. The trap or pipe could be clogged; the
supply pipes valve could be partially
closed; In these cases, a professional should
come in and inspect the buildings entire
system, in addition to your radiator.
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