November 16, 2005
Hood Thermo-Pad Canada Ltd.
Summerland, British Columbia
Attn. John Hood
Please be advised that we have
completed testing of the Thermo-Pad
re-usable heating pads, model #404, and #808. The results are as
On October 18th and 19th 2005, four
dives were made to a depth of
167fsw. Each diver wore a model #808 heating pad in the small of his
back. The heating pads were activated in the final dress-in stage,
prior to the diver entering the water. The duration of each dive was 30
minutes, the maximum allowed on a surface decompression using oxygen
dive. The water temperature was 53 degrees farenheit, and normally the
diver would have a slight chill by the end of his last water stop,
prior to entering the decompression chamber. Two of the divers reported
being very comfortable, and two actually sweated slightly. Upon
entering the decompression chamber, the divers were given model #404
heating pads. These pads were placed in their booties during surface
decompression, keeping the divers’ feet warm, and thereby ensuring good
circulation for proper decompression.
On November 14th and 15th, two dives
were made to a depth of 43fsw.
Each diver wore a model #808 heating pad in the small of his back.
Again the heating pads were activated in the final dress-in stage. The
duration of one of these dives was 98 minutes, the other was 108
minutes, with a decompression stop. The water temperature was 48
degrees. On both of these dives, the diver was slightly warm until
after one hour, and comfortable for the duration of the dive.
These heating pads seem to work well
at various depths of water, and I
could see where they could be a very valuable item in the diving
contractor’s toolbox by extending bottom times in colder water
temperatures. They also proved useful for the chamber occupant in
surface decompression operations. The pads were found to be very user
friendly, with clear, easy to understand instructions. I would
recommend these heating pads to every commercial diver or diving
contractor working in colder water.
Also, we plan to continue testing
these pads throughout the winter as
the water temperature drops, and we will advise you of those results as
they become available.
You are welcome to use this product
assessment in any future
advertisement if you so desire.
Diving Program Co-ordinator,
Commercial Diving College
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