This is a set of six  cooling radiators.  Add on / snap on easily to 4" diameter pipe or stack. (13" circumference)  (see other listings for other sizes.)

Popular as stovepipe heat reclaimers / radiators that extract heat from the hot stove pipe and radiate the heat into the room.  They will fit 4 inch diameter pipe or stack.  See my other listings for 3", 3.6", 5, 6", 7, or 8" diameters.  CUSTOM SIZES AVAILABLE....CONTACT ME.

Installed, they make close contact with your pipe and dissipate heat from the hot pipe to be released into the air.  They, in effect, increase the surface area of your pipe, therefore allowing more heat to be radiated and released out of the pipe.  They work just like the aluminum fins on a motorcycle engine, the increase the area of heat dissipation.

 You get one lot of 6 radiators.   They are made of 28 high conductivity aluminum,  1  ½" wide.  They will work with any hot pipe....home, industrial, automotive exhaust stack, refrigeration, etc. 

They attach quickly and easily to your pipe....no screws or tools needed.  The ends lock into each other.  It takes about 2 minutes to attach all six radiators.  The bands conduct heat from the points of contact on the pipe to the loops in the band where the heat is released into the air.  

PLEASE,  PLEASE......MEASURE THE CIRCUMFERENCE OF YOUR PIPE (the length around) WITH A FLEXIBLE TAPE MEASURE !     Do not guess at your diameter...it is impossible to measure the diameter of an installed pipe.    ORDER BY CIRCUMFERENCE....see below.

FREE HEAT...

How much heat?  Here is an example for 6" diameter set applied to a stovepipe to capture / reclaim, and dissipate heat into the room:

 Each  6” diameter radiator has 11 loops that are 2” x  1.5”…that is 33 square inches of sheet metal.      

6 x 33 sq/in = 198  square inches of sheet metal.  That is equivalent to a  10" x 19.8” sheet of metal.

 So in effect, by installing this set of 6 bands, you create the equivalent of this 10" x 19.8” sheet of hot sheet metal, 300 - 500 degrees, radiating heat from both sides of the sheet into the room before it escapes out the chimney.    That is like a small space heater itself...and it is FREE HEAT.

See my other listing for radiators for 3", 3.6", 5", 6", 7", and 8" dia. standard pipes. CUSTOM SIZES AVAILABLE.

If there is a question about which diameter pipe you have, just measure the circumference (around the pipe) and divide by 3.14.  The bands will stretch to fit.

They will last a lifetime.  They never need maintenance.  They may be re-used if you replace the old pipe. 

They are guaranteed to draw more heat from the pipe or stack.

 You may put on as many bands as you wish or have room for.  (Leave at least 1" between bands)