does this go in the thinnest to install the Strataheat mat or the thinnest to install the tiles over the mat?

Name: Laticrete Strata Heat Thermal Pack - 2 per Bag
Brand: Laticrete
SKU: 0802-0003-2
Price: 32.95 USD
Availability: InStock

This thermal pack is to be added to the thinset that would be used to set the tile over the strataheat mat and wires.

Laticrete Strata Heat Thermal Pack - 2 per Bag

$32⁹⁵ USD

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Brand: Laticrete | SKU: 0802-0003-2 | MPN:

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You get uniform heat when you add the Strata_Heat Thermal Pack to a modified thin-set.

Each 3 lbs. bag contains 2 Thermal Packs
Increases thermal heat transfusion by 20%
Wires transfer heat quicker, shutting down the system sooner and reducing energy costs by 15%
Lowers kilowatt usage saves homeowners on electric bills
Reduces cold spots between wires, making floors extra luxurious
Reduces thermostat cycle times
It pays for itself in a matter of months

Use (1) thermal pack with 25 lbs. bag of Laticrete thin-set and (2) thermal packs with a 50 lbs. bag of Laticrete thinset
Remove the thermal packs from the outer bag and remove the protective sleeve to expose the water-soluble thermal pack
Take the water-soluble thermal pack and dissolve it in the appropriate amount of water in a clean mixing container - 3-3.3 quarts for 1 pack, 6.1-6.6 quarts per 2 packs
Very slowly agitate the packs and then mix with a mixing drill to fully disperse the thermal pack in the mixing container
Add your Laticrete thin-set and follow standard instructions for thin-set

Manual