---
product_id: 2608414
title: "Sunnytech Mini Hot Air Stirling Engine Motor Model Educational Toy Kits Electricity HA001"
brand: "sunnytech"
price: "₨1992"
currency: SCR
in_stock: true
reviews_count: 5
category: "Sunnytech"
url: https://www.desertcart.sc/products/2608414-sunnytech-mini-hot-air-stirling-engine-motor-model-educational-toy
store_origin: SC
region: Seychelles
---

# Compact 3.94 x 1.77 x 1.97 in size Runs on 95%+ alcohol fuel for lasting power Precision stainless steel & brass build Sunnytech Mini Hot Air Stirling Engine Motor Model Educational Toy Kits Electricity HA001

**Brand:** sunnytech
**Price:** ₨1992
**Availability:** ✅ In Stock

## Summary

> ⚙️ Ignite your desk with the power of precision engineering!

## Quick Answers

- **What is this?** Sunnytech Mini Hot Air Stirling Engine Motor Model Educational Toy Kits Electricity HA001 by sunnytech
- **How much does it cost?** ₨1992 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/2608414-sunnytech-mini-hot-air-stirling-engine-motor-model-educational-toy)

## Best For

- sunnytech enthusiasts

## Why This Product

- Trusted sunnytech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gift of Genius:** Elegantly packaged, ideal for STEM enthusiasts, educators, or as a unique executive desk toy that blends science with style.
- • **Fuel Your Curiosity:** Operates efficiently on 95%+ alcohol, with two spare glass cylinders and O-rings included for uninterrupted learning.
- • **Conversation Starter:** Watch heads turn as the flywheel spins from a tiny flame—perfect for sparking engaging discussions in any professional setting.
- • **Micro-Mechanical Marvel:** Compact design packs complex mechanics—connecting rods, crankshaft, worm drive, and precision bearings—into a sleek desktop model.
- • **Engineered for Excellence:** Mirror-finish stainless steel base with nickel-plated brass components ensures durability and rust resistance.

## Overview

The Sunnytech Mini Hot Air Stirling Engine is a meticulously crafted educational model featuring a mirror-polished stainless steel base, brass cylinder, and precision bearings. Compact yet complex, it demonstrates advanced mechanical principles through a heat-powered flywheel driven by 95%+ alcohol fuel. Designed for durability and ease of maintenance, it includes spare glass cylinders and O-rings. Perfect for STEM learning, classroom demos, or as a sophisticated conversation piece, this model blends scientific intrigue with executive style.

## Description

desertcart.com: Sunnytech Mini Hot Air Stirling Engine Motor Model Educational Toy Kits Electricity HA001 : Toys & Games

Review: Unbelievable little motor! - This thing is amazing! First off, it came packaged in 3 boxes. A fairly large box with air packets for cushioning, then there was a smaller box with yet a third smaller box within it! I did notice all Oriental (Chinese per chance?) writing on all of the boxes, but the very small engine was found intact. I was a little concerned by the negative reviews I've read, but I am very pleased with the quality control on this item. There was also a slip of paper written in English with simple instructions inside the box. All the screws were in place, all the rods, linkages were intact, everything was tight and looked ready to go....... and (being a 62 yr. old kid) I simply had to fire it up immediately! I poured a little alcohol in the alcohol lamp, threaded the wick, placed it in position and lit it up. Within half a minute (the directions say 20 secs.) I gave the flywheel a spin and it took off like a champ. If you leave the flame in direct contact with the motor, it keeps gaining RPM until it could vibrate off of the table. I merely moved the lamp away a wee bit and it slowed down to a manageable speed. I, too had a problem with the magnet falling off of the alcohol lamp, so I put a drop of Gorilla glue on it and set the lamp on top and it is quite solid there this morning. I had some trouble with the wick working down inside of the lamp due to vibration. As the wick is made of several strands of string, I thought I could tie a simple knot in it to hold it in place. If I failed, I figured I could replace the string. This simple knot seems to work pretty good as the wick now stays in position better. It did shorten the wick somewhat, but it still seems to work pretty good. I can always replace it with a longer wick. I couldn't help myself, but I ran two full tanks of alcohol through the lamp just watching this thing run. It seems impossible that it could operate, yet it does! Back to the review...... It came with a small foam wrap that had two glass bulbs and two O-rings in it, When I first opened the third box, a very small nut fell onto the table. I couldn't find where one was missing on the engine, so I simply double-nutted it on one of the screws to keep it from getting lost. I assumed that it is also a spare part? Tighten with care as this is a very small nut/screw. The base measures 1-7/8" by 4" and the engine stands about 2" tall overall. It appears to be built pretty good for a toy, the fit and finish being very good on the machined parts. It has only one flywheel (the catalogue description claims "twin flywheels". The base is either stainless or nickel plated steel. The Stamped parts are well made of fairly thick steel (again, these too look stainless) with a brass 1/4" elbow for an engine housing! It looks to have glass cylinders with a metal piston on the hot (top) side and a plastic piston/cylinder on the cold side of the engine. The connecting rods have ingenious linkages to the crankshaft with keepers to hold them in place. The unit came fully assembled, all nuts/screws were tight, and the unit is pleasing to the eye. It seems that Sunny Tech got their quality control straightened out. To me, this is an amazing work of science at a very affordable price. I highly recommend it to anyone with a mechanical aptitude. -------> I'll be quiet now. ;-)
Review: I LOVE IT! WORKS GREAT WITH THE CORRECT FUEL. - Love It! But be sure to use the correct fuel. First of all, I paid full price ($39.99) and did not receive any compensation for writing this, nor do I have any relationship with the seller. I seldom write reviews, but this product is worth my time. This engine is a great value. You can of course spend over $200 for a precision made European product but as much as I like my science gadgets, I don't like to overspend on them. This product is well worth it. The seller has taken extra care to make sure the engine survives the long trip from China by double-boxing it. The inner box has the engine mounted to a substantial foam sheet with several cable ties, and the flywheel is tied down with a rubber band to prevent movement. You'll find 2 spare glass cylinders, 2 O-rings, and a spare fuel container carefully taped in foam--look for them. If you happen to have issues with your engine, the seller gives you an email and promises a response within 12 hours. You'll get a one page sheet of instructions, and another page for troubleshooting with links to videos, but I did not need the links nor try them. The translation to English on these sheets was very entertaining but understandable. Out of the box, the engine DID NOT WORK. But that's because there seems to be little information on the correct fuel to use. I used ordinary 70% isopropyl rubbing alcohol, and the only way to get it started was by "jump starting" it with a cigarette lighter. But this alcohol does not burn hot enough. I tried lighter fluid (naptha) which works great except that it turns the glass cylinder black with soot. Before I went out to buy a bottle of 91% rubbing alcohol, I did some research and found that there are 3 good choices for fuel: Heet, which is the antifreeze you put into your gas tank to remove moisture, pure grain alcohol (200 proof) which is available at liquor stores and pharmacies but is rather expensive, and denatured alcohol, which is often sold in expensive gallon sizes at hardware stores. I bought a bottle of Heet at the local gas station for a little more than $2 and it works great! A tip: the glass cylinder moves in and out. Rotate the flywheel until the piston is fully extended and if necessary, pull the cylinder away from the piston about 1/8 inch or so; just make sure that the piston does not strike the cylinder when running. The troubleshooting sheet provided refers to a problem that happens during shipping whereby the flywheel connector becomes disconnected from the piston shaft and it's just a matter of clicking them back together with sufficient force. I didn't have that problem. If you like geeky science gadgets at a bargain price, I urge you to buy this one!

## Features

- Well Made----Produced with high quality material and adopts mirror surface stainless steel for the base, brass cylinder premium spring with nickel plating stand and accessories, aluminium alloy dis-placer piston, glass cylinder liner, precision bearing, bearing steel shafts, zinc alloy flywheel. All the parts have done surface treatment to avoid rusting.
- Long Lasting----Using 95% alcohol which test by one customer, It did come with two spare hot cylinder glass tubes and two O-rings inside the package. you can replace it fast and easily and replacement instruction included on the manual.
- Smart Size----It only measure to 3.94 X 1.77 X 1.97 in and contains pattern of connecting rod piston, crankshaft, lever, belt drive, gearing, worm drive, transmission, threaded fastener, rolling bearing, plain bearing, heat transfer, sealing techniques etc.
- Amazing Conversation----It's funny to see people's looks and reactions when they squeeze a little shot for this Stirling engine. Put some combustibles and get the flywheel going.
- Best Gift----Its elegant gift package makes it spruce up and presentable. It has a wide range of application as, great gift for students' science project, Physical/mechanical learning, teacher’s Demo props on the class, birthday gift for friends, families, parents.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00HGSG7V0 |
| Best Sellers Rank | #303,235 in Toys & Games ( See Top 100 in Toys & Games ) #2,907 in Educational Science Kits |
| Customer Reviews | 4.3 4.3 out of 5 stars (528) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.6 ounces |
| Manufacturer | sunnytech |
| Manufacturer recommended age | 15 years and up |
| Product Dimensions | 7 x 4.8 x 3.8 inches |

## Images

![Sunnytech Mini Hot Air Stirling Engine Motor Model Educational Toy Kits Electricity HA001 - Image 1](https://m.media-amazon.com/images/I/71HtUpzct+L.jpg)

## Questions & Answers

**Q: can you build a small lamp powered fan with it**
A: This toy is actually quite tiny. It's only about 2"X 1.5".

**Q: can I buy spare glass tubes**
A: Need spare tubes with washers I bought this product and  had no spare parts glass and tubes. If you want me to be a customer need the parts soon.

**Q: For how long can the engine run after it starts?**
A: as long as it has fuel.with 90% isopropylic alcohol, it can run for about 7 min.with a small candle, about an hour, but carbon deposits will form on the glass.

**Q: How much of the assembly does one do oneself?**
A: It comes fully assembled, but will almost certainly need to be lubricated before use.  Putting a little 3-in-one oil on the moving parts and the piston made all the difference in the world!  Not sure if this is the best oil or not, but it has worked well for us.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Unbelievable little motor!
*by O***E on September 2, 2015*

This thing is amazing! First off, it came packaged in 3 boxes. A fairly large box with air packets for cushioning, then there was a smaller box with yet a third smaller box within it! I did notice all Oriental (Chinese per chance?) writing on all of the boxes, but the very small engine was found intact. I was a little concerned by the negative reviews I've read, but I am very pleased with the quality control on this item. There was also a slip of paper written in English with simple instructions inside the box. All the screws were in place, all the rods, linkages were intact, everything was tight and looked ready to go....... and (being a 62 yr. old kid) I simply had to fire it up immediately! I poured a little alcohol in the alcohol lamp, threaded the wick, placed it in position and lit it up. Within half a minute (the directions say 20 secs.) I gave the flywheel a spin and it took off like a champ. If you leave the flame in direct contact with the motor, it keeps gaining RPM until it could vibrate off of the table. I merely moved the lamp away a wee bit and it slowed down to a manageable speed. I, too had a problem with the magnet falling off of the alcohol lamp, so I put a drop of Gorilla glue on it and set the lamp on top and it is quite solid there this morning. I had some trouble with the wick working down inside of the lamp due to vibration. As the wick is made of several strands of string, I thought I could tie a simple knot in it to hold it in place. If I failed, I figured I could replace the string. This simple knot seems to work pretty good as the wick now stays in position better. It did shorten the wick somewhat, but it still seems to work pretty good. I can always replace it with a longer wick. I couldn't help myself, but I ran two full tanks of alcohol through the lamp just watching this thing run. It seems impossible that it could operate, yet it does! Back to the review...... It came with a small foam wrap that had two glass bulbs and two O-rings in it, When I first opened the third box, a very small nut fell onto the table. I couldn't find where one was missing on the engine, so I simply double-nutted it on one of the screws to keep it from getting lost. I assumed that it is also a spare part? Tighten with care as this is a very small nut/screw. The base measures 1-7/8" by 4" and the engine stands about 2" tall overall. It appears to be built pretty good for a toy, the fit and finish being very good on the machined parts. It has only one flywheel (the catalogue description claims "twin flywheels". The base is either stainless or nickel plated steel. The Stamped parts are well made of fairly thick steel (again, these too look stainless) with a brass 1/4" elbow for an engine housing! It looks to have glass cylinders with a metal piston on the hot (top) side and a plastic piston/cylinder on the cold side of the engine. The connecting rods have ingenious linkages to the crankshaft with keepers to hold them in place. The unit came fully assembled, all nuts/screws were tight, and the unit is pleasing to the eye. It seems that Sunny Tech got their quality control straightened out. To me, this is an amazing work of science at a very affordable price. I highly recommend it to anyone with a mechanical aptitude. -------> I'll be quiet now. ;-)

### ⭐⭐⭐⭐⭐ I LOVE IT! WORKS GREAT WITH THE CORRECT FUEL.
*by A***R on January 18, 2016*

Love It! But be sure to use the correct fuel. First of all, I paid full price ($39.99) and did not receive any compensation for writing this, nor do I have any relationship with the seller. I seldom write reviews, but this product is worth my time. This engine is a great value. You can of course spend over $200 for a precision made European product but as much as I like my science gadgets, I don't like to overspend on them. This product is well worth it. The seller has taken extra care to make sure the engine survives the long trip from China by double-boxing it. The inner box has the engine mounted to a substantial foam sheet with several cable ties, and the flywheel is tied down with a rubber band to prevent movement. You'll find 2 spare glass cylinders, 2 O-rings, and a spare fuel container carefully taped in foam--look for them. If you happen to have issues with your engine, the seller gives you an email and promises a response within 12 hours. You'll get a one page sheet of instructions, and another page for troubleshooting with links to videos, but I did not need the links nor try them. The translation to English on these sheets was very entertaining but understandable. Out of the box, the engine DID NOT WORK. But that's because there seems to be little information on the correct fuel to use. I used ordinary 70% isopropyl rubbing alcohol, and the only way to get it started was by "jump starting" it with a cigarette lighter. But this alcohol does not burn hot enough. I tried lighter fluid (naptha) which works great except that it turns the glass cylinder black with soot. Before I went out to buy a bottle of 91% rubbing alcohol, I did some research and found that there are 3 good choices for fuel: Heet, which is the antifreeze you put into your gas tank to remove moisture, pure grain alcohol (200 proof) which is available at liquor stores and pharmacies but is rather expensive, and denatured alcohol, which is often sold in expensive gallon sizes at hardware stores. I bought a bottle of Heet at the local gas station for a little more than $2 and it works great! A tip: the glass cylinder moves in and out. Rotate the flywheel until the piston is fully extended and if necessary, pull the cylinder away from the piston about 1/8 inch or so; just make sure that the piston does not strike the cylinder when running. The troubleshooting sheet provided refers to a problem that happens during shipping whereby the flywheel connector becomes disconnected from the piston shaft and it's just a matter of clicking them back together with sufficient force. I didn't have that problem. If you like geeky science gadgets at a bargain price, I urge you to buy this one!

### ⭐⭐⭐⭐⭐ Review
*by C***R on July 4, 2017*

Built far more solid than it appears. We added some washers to reduce vibration which sped up the engine. Great toy, my husband plays with it constantly and his friends and family love playing with it too regardless of age.

## Frequently Bought Together

- Sunnytech Mini Hot Air Stirling Engine Motor Model Educational Toy Kits Electricity HA001
- Sunnytech Low Temperature Stirling Engine Motor Steam Heat Education Model Toy Kit For mechanical skills (LT001)
- Sunnytech Mini Hot Live Steam Engine Model Education Toy DIY (BJ001)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sc/products/2608414-sunnytech-mini-hot-air-stirling-engine-motor-model-educational-toy](https://www.desertcart.sc/products/2608414-sunnytech-mini-hot-air-stirling-engine-motor-model-educational-toy)

---

*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-25*