ExplorersWeb Inc. :: Body Heating Systems :: HEAT foot warming system

Package includes:

2 x HEAT AA Power Packs

2 x Heating elements with 3 settings

2 x Heating extension cords

2 x Cut to size Soles

1 x Pelican case
Not included: AA batteries.

For maximum battery effect and reachability, the extension cords allow for the Power Packs to be carried on the body.

The Heating elements can either be used under the sole (ball of foot) or inside gloves.

For extended expeditions with lots of friction wear expected, 2 extra heating elements are recommended.

When and why do I need a heating system?

Explorers typically don't need a heating system until temperatures reach below -15C (5F). The risk of frostbite dramatically increases below -20C (-5F) and can come on suddenly.

Due to competition for blood flow between fingers/toes and large muscle groups, the biggest risk of frostbite often occurs during the first hour of activity (following camp or a rest stop). Fingers and toes need help heating until the warm blood returns.

Do I use the heating system all the time?

If it's very cold outside, you typically put the Power Pack on level 3 for 15-30 min and then turn it down to level 1 or 2.

The Power Pack can often be shut down completely after an hour or so. The Power Pack should be used when hitting the trail in the morning, directly after a break, or when waiting in line (on fixed ropes).

How many batteries do I need?

Each Power Pack holds 4 AA batteries. Use Alkaline, Lithium-Ion, rechargeable NICD or NIMH AA batteries. (Energizer Li-Ion batteries are lighter, more cold resistant and last longer.)

8-16 Li-Ion AA batteries should be enough for a long summit push. A complete South Pole expedition (60 days) requires about 30-50 batteries. A complete North Pole expedition about 40-60 batteries.