How to Use


How to Use

Inserting Heating Pads




Temperatures and Durations





  • It should be worn over a scrub top and under the OPERATIONHEATJAC Vest with a scrub warm-up jacket or surgical gown or any garment used to keep heat in.
  • Place the OPERATIONHEATJAC around your torso so that the pockets face away from your body and the openings of the pockets face up. It should be worn up higher on your body than where you would wear a belt, (on the torso).
  • Fasten the OPERATIONHEATJAC snugly but comfortably, using the double-sided hook ends of hook and loop material attached to the elastic straps.

insulating vest

Our vest is to be worn over your scrub top and OPERATIONHEATJAC belt and under a typical scrub warm-up jacket. As some hospitals provide thin, what seems to be paper, “warm-up” jackets, having an insulting layer underneath to keep the heat in is needed.

Our vest is NOT a single or few uses product. It is washable (cold water, gentle cycle, hang dry), the same as our belts, once the heating pads and insulating pads are removed, and then replaced when dry.

The vest pocket is designed and positioned to accommodate our 11.1V, 5200 mAh battery, and one may find this to be the more comfortable option over placing the battery within the second pocket of the double pocket or in belts without the second pocket, behind the insulating pad.

These come in sizes S, M, L, XL to accompany the belts.



Remove heating pads and insulating pads. Cold water wash, gentle cycle, hang dry. After dry, replace insulating pads and heating pads or just insulating pads if using the air-activated warmer model. The OPERATIONHEATJAC insulating vest can also be laundered in the same way.

Battery Storage

Store the battery and controller and transformer in a cool, dry area. Re-charge after long periods of not being in use.


Please read and follow all instructions prior to using this product. Discontinue using the OPERATIONHEATJAC if it or any component becomes damaged or defective. Do not attempt to disassemble the battery unit, charger, controller, transformer, or heating pads. Do not place the heating pads directly on the skin. OPERATIONHEATJAC should always be worn over at least one layer of clothing. Do not use this product on children or on potentially desensitized skin as in areas of frostbite or in diabetics with neuropathy. Do not wear this product to bed. Discontinue immediately if the heating pads become uncomfortably hot. Do not use this product if there is a chance that the OPERATIONHEATJAC, heating pads, or any of the electrical components will be exposed to water or wet conditions. Do not use the various heating modalities together. Do not place air-activated warmers in a microwave oven. Do not use air-activated warmers in oxygen-enriched environments. Careful supervision is required when used by the elderly, the handicapped, and those with sensitive skin. People with paralysis, nerve damage, circulatory problems, and people cannot put on or remove the OPERATIONHEATJAC by themselves, should not use this product. Do not open packaging for the air-activated warmers until ready to use. Do not open or put a hole into the air-activated warmers. Do not allow contents to get in eyes or in mouth. If in eyes, flush thoroughly with clean water. If swallowed, contact poison control, as they contain iron powder, which can be harmful if swallowed. Keep out of reach of children and pets.