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Description
Hot Air Stirling Engine Model Kit Science Toy Physical Principle Metal Model ToysDescription: Product Name: Stirling Engine Model Color: As shown on the picture. Material: Metal,Glass Usage: 1. Security start step (1) Put the engine model in a horizontal position. (2) Turn the flywheel gently with the hand, check whether the flywheel is running smoothly if there is a strong sense of astringency, check whether the connecting rod is connected to normal, whether the piston in the air cylinder and the spindle on the copper sleeve have
Description:
Product Name: Stirling Engine Model
Color: As shown on the picture.
Material: Metal,Glass
Usage:
1. Security start step
(1) Put the engine model in a horizontal position.
(2) Turn the flywheel gently with the hand, check whether the flywheel is running smoothly if there is a strong sense of astringency, check whether the connecting rod is connected to normal, whether the piston in the air cylinder and the spindle on the copper sleeve have oil if there is a dry cloth or toilet paper with oil. Wipe the piston and the outer wall of the spindle, confirm that there is no oil stain or foreign matter to ensure that the flywheel runs smoothly.
(3) Check whether the two crankshaft angle on the flywheel is 90 degrees (the crankshaft is at the bottom or the most right side of the crankshaft at the bottom), if it is not to be adjusted in parentheses.
(4) The alcohol lamp is moved to the hole of alcohol lampholder, and the alcohol lamp is ignited on the premise of confirming safety.
(5) After heating for 60 seconds, start with your hand gently toggle the flywheel until the flywheel can run automatically.
(6) The whole process of heating must not touch the main cylinder (high temperature danger!).
2. Security end step
(1) Please let the engine model cool down after use.
(2) If the end of the way is to end, the alcohol lamp is extinguished to confirm that it is completely extinguished, please let the engine model naturally cooling in the cooling process to stop operation automatically.
(3) If the engine model is cooled down naturally, please keep the engine where the child can't get it.
(4) Children should use the engine model under the care of adults, so as to prevent scalding or accidentally breaking the glass.
3.Matters of attention
(1) When alcohol is added to the alcohol lamp, please confirm that the alcohol lamp is in the state of extinction.
(2) If alcohol is inadvertently sprinkled on the model floor or on the desktop, please wait for the alcohol to evaporate completely or dry the alcohol, and then ignition.
(3) The wick of the alcohol lamp can not meet the test tube, and the light core will produce water vapor when it burns. If it meets the test tube, it will break the test tube.
(4) The engine model has high rotational speed and will vibrate when running, so be careful to slide down from the table.
(5) Be careful when heating, prevent scalding.
Package Include:
1 x Stirling Engine
1 x Alcohol Burner
1 x Spare Heating Glass Tube
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.4 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Healthy and delicious
Flavor Name: Variety Pack, Size: 12 Fl Oz (Pack of 12)
Let’s compare to Alani! I was a HUGE Alani consumer, wanted something healthier, tried more energy drinks than I can count until I ended up HERE with Bloom! I am very happy about these :)
These have 180mg of green tea caffeine, Alani has 200mg. After switching from Alani to less mg caffeine energy drinks; I cannot handle an Alani anymore! They give me anxiety, and make me feel really bad.
Flavor wise!! Delicious. But let’s compare to an Alani.
Bloom peach mango, in comparison to a juicy peach Alani is a much milder sweetness and doesn’t come across too overwhelming while still being just as delicious, and in my opinion they taste even better!
Bloom cherry lime, in comparison to Alani cherry twist is a HUGE difference. Alani’s leaves a weird chemical after taste that I cannot get past and makes me refuse to drink them. I am a loverrrr of cherry lime drinks, and this one does have a slight medicinal taste, but it’s more like a sweet tart in comparison. It’s still a win to me!
Bloom strawberry watermelon is comparable to Alani watermelon wave!! But not as tart/sour. I am going to be honest in saying this flavor on both brands is probably my favorite! They both remind me of a jolly rancher. Again, I am much happier enjoying the bloom version.
Bloom raspberry lemon is not actually comparable to any Alani in my opinion, I would reach to say Alani pink slush, ONLY because they both have a different sweetness that comes with a “pink” brand drink. I used to love pink slush until the flavor became nothing but carbonation to me.. I can’t be sure but feel the ingredients were changed somewhere along the way, as Alani tends to do. But I really enjoy the flavor of raspberry lemon Bloom, and you can definitely taste BOTH flavors.
Alani is zero sugar, B12, B6 and biotin, 200mg caffeine and artificial sweeteners. After drinking them for maybe three years, I got burnt out.
Bloom has zero sugar, 180mg caffeine, B6, B12, apple cider vinegar, prebiotic fiber, no artificial flavors or color or aspartame.
You can decide for yourself, but this is a side by side comparison:)
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Best energy drink
Flavor Name: Variety Pack, Size: 12 Fl Oz (Pack of 12)
Nice that it comes with three different flavors. They are all great tasting. Great value !
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Variety
Flavor Name: Variety Pack, Size: 12 Fl Oz (Pack of 12)
Great variety of flavors, doesn’t make you jittery from caffeine, perfect size and great taste
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Reviewed in the United States on May 30, 2026
★★★★★ 4
cleaner caffeine hit, some flavors better than others
Flavor Name: Variety Pack, Size: 12 Fl Oz (Pack of 12)
Been going through this variety pack for a few weeks now and it's become a solid pre-workout alternative. 180mg caffeine from natural sources hits noticeably cleaner than the usual energy drinks — no jittery spike and crash. The sparkling texture is satisfying without being overly carbonated.
Flavor-wise the variety pack is hit or miss. A couple of the flavors are genuinely good, a couple I'd skip if buying singles. The zero sugar formula doesn't have that artificial sweetener aftertaste that ruins a lot of "healthy" energy drinks, which I appreciate.
The price is a bit higher than standard energy drinks but you're paying for the cleaner ingredient list. If you care about what's in your drinks, it's worth it.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
The best ever!
Flavor Name: Variety Pack, Size: 12 Fl Oz (Pack of 12)
I lost my taste for coffee so I ended up trying several different energy drinks. Most of them are very, very unhealthy. However, I found this one “Bloom“. It is refreshing and has enough caffeine to keep me happy. The flavor is great except that I wish they would not use sucralose. It is not necessary.
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Reviewed in the United States on May 12, 2026