Tempest 2 and Tempest 2 Slim Manual

Unscrew the Cap. Fill the bowl by pushing it into your ground material, or use the vacuum/straw method. Keep the threads clean and make sure air can flow. Tamp lightly only. Screw the Cap on gently until it is fully closed. Avoid touching the steel parts of the Cap (the indicator housing and induction sleeve), as oil from your fingers can burn onto them.

Read the YLL setup section below. Set the heater for your thermal media using the settings table. Heat until Timeout.

Hold the flame tip about 1 cm (1/2 inch) from the Cap. Rotate the device slowly for even heating while you watch the visual indicator and listen for the click. The first click usually comes at the lower end of the ideal temperature range. The indicators respond to where on the Cap you apply heat. Never heat the indicators directly. Use a dual, triple, or medium-size single-flame torch.

Hold the hot Cap securely with the Tempest Case or the Reload's magnet. Twist it off and empty the used material. To release the device from a magnet, tilt it; don't pull it. The Cap stays very hot for several minutes, so store the device somewhere safe. The Leather Case and Tempest Case are safe for storage even while the Cap is hot.

• For best results, take long, slow draws and cover the stem's air intake for most of the draw.
• The click discs change slightly after the first 30–50 uses. The Cap has two click discs, but they may click at the same time.
• When reheating, stop heating one marking earlier on the visual indicator than you did the first time.
• The visual indicator keeps moving as the heat spreads and evens out inside the Cap. Never heat the indicators directly.
• Avoid touching the heated parts of the Cap, as oil from your fingers will burn onto them.
• When pushing the bowl onto the stem, twist it as you push to protect the O-rings.

Loosen the screw on top of the Cap, turn the induction sleeve to set the airflow, then retighten the screw. If the screw is too tight, use the included flathead screwdriver bit with a large handle and follow "Remove an over-tightened Cap screw" below. 

Loosen the small ring below the heat shield to adjust or fully close the stem's air intake. 

Loosen the mouthpiece and turn the heat shield to adjust or fully close the stem's air intake.

Use the included steel tube to set the bowl to 0.6 cc, 0.9 cc, or 1.2 cc (about 0.1 g, 0.15 g, or 0.2 g). The Tempest 2 Slim also has an extra, smaller 0.3 cc (about 0.05 g) setting. For the half (0.6 cc) or three-quarter (0.9 cc) size, push the screen all the way to the bottom first, then push it slowly back up from the neck side until it is seated. The Bowl Screen Tool makes this easier.

The two-layer Heater Core replaces the balls for more conduction and easier cleaning. On the larger outer part, the wider opening faces the indicator end. The small part can face either way. Before fully closing, check that the screen's three ears are inside the metal rail, then turn the screen until it clicks into place.

Fill the chamber with balls until they are just below the screen's slot line (approximately 40 x 3 mm). Make sure the screen is flat, with the arrow marking pointing clockwise. Guide its three ears gently into the three openings and rail without pressing down on the screen. Before fully closing, check that the screen's three ears are inside the metal rail, then turn the screen until it clicks into place. If the three ears don't fit easily into the rail, check that you haven't overfilled the chamber with balls and that the screen is flat.

Turn the bowl so the locking tabs line up with the slots on the stem. This gives a better grip when opening the bowl.

Always flatten the screen before installing it. A bent screen may not tighten properly and can come loose inside the bowl or Cap.

Use the included screwdriver bit, or any 2.5 mm or 3 mm flathead jeweler's screwdriver with a large handle for better grip and control. Do not use an electric screwdriver.

Hold the Cap as shown in the image above. Press the screwdriver firmly down against a table or other solid surface while turning counterclockwise. This stops the driver from slipping and damaging the screw head.

Use the Tempest to push the glass cup to the correct depth, as shown in the video, so it sticks out slightly from the bottom of the Wand IH. 

If the glass cup is hard to push into place, don't force it, as it can break. Check that the silicone insert hasn't bulged out on the other side, as this can stop it going in completely. If needed, reinstall the silicone. 

Set the temperature from the settings table and let it run until the "Timeout" message appears. 

For a stronger roast, increase the temperature setting in 10°C / 10°F increments or gently push the adapter 1 mm further down. 
For a lighter roast, lower the temperature setting or raise the adapter. 
A deeper adapter increases conduction in the bowl, which helps with an uneven roast or a slow-starting draw. A higher adapter (Wand IH glass closer to the bottom red line) increases convection, which can improve flavor, but may roast unevenly if the bowl is packed too tightly.

When heating with the Wand IH, ignore the click indicators. Heating power drops to about 20% when the LED turns solid red, so there may be a 5–10 second delay between the click and the "Timeout" message.

When the battery level drops to 50% while not heating, consider raising the temperature setting by 10°C to make up for the weaker battery. The battery level drops a lot during heating; this is normal. Expect about 10–15 heat-ups from full charge to empty. 

The glass adapter gets very hot. Don't touch the bottom of the glass or set it on anything that could melt. The Wand Stand accessory keeps the glass raised.