---
product_id: 409301923
title: "usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference"
brand: "usmile"
price: "HK$37"
currency: HKD
in_stock: false
url: https://www.desertcart.hk/products/409301923-usmile-low-temperature-stainless-steel-stirling-engine-generator-desk-models
store_origin: HK
region: Hong Kong
---

# Runs on hot water, no flame needed Precision metal alloy craftsmanship Max RPM with ice-cold top plate usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference

**Brand:** usmile
**Price:** HK$37
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Ignite your desk with the power of temperature—science never looked this cool!

## Quick Answers

- **What is this?** usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference by usmile
- **How much does it cost?** HK$37 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/409301923-usmile-low-temperature-stainless-steel-stirling-engine-generator-desk-models)

## Best For

- usmile enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Operation:** Just place on a hot cup of water and flip the wheel—self-running for up to 20 minutes of mesmerizing motion.
- • **Sleek Desk Statement:** A stylish, compact metal and glass model that sparks curiosity and elevates your workspace aesthetic.
- • **Interactive STEM Learning:** Perfect for professionals and educators to demonstrate energy conversion and thermodynamics in action.
- • **Harness Real Thermodynamics:** Watch science come alive with a Stirling engine powered by simple temperature differences—no batteries, no flames.
- • **Low Maintenance, High Impact:** Durable stainless steel design with easy graphite lubrication keeps it running smoothly without messy oils.

## Overview

The usmile Low Temperature Stainless Steel Stirling Engine is a precision-crafted educational desk model that runs on the temperature difference between a hot cup of water and a cold top plate. Made from durable metal alloy and glass, it operates quietly and smoothly for up to 20 minutes without batteries or flames, making it a unique conversation starter and STEM learning tool for professionals and enthusiasts alike.

## Description

This low temperature stirling engine,runs on a hot cup of water(Do not put it above a candle or other fire) The engine's speed depends entirely upon the temperature difference between the hot side and the cold side. In the case of using a cup of hot beverage, not only is the engine transferring the beverage's heat to the surrounding air, there are air currents constantly crossing the top (cold) plate. The differing temperatures will cause the engine to slow or speed according to the net difference between the two plates. For some extra fun, you could obtain a USB-powered cup warmer and place engine on that. After the warmer finally made it to full temperature, the engine will chug along like a champ. Attention: 1.If there is a little noisy, ONLY use a little graphite dry lube or a pencil quieted it down nicely. 2.Do not use oil to lubricate,which will mix with dust in the air, and become a oil-dirt, finally make the friction to be even bigger.The stirling engine can't run smoothy. Size: 102 X 102 X 125mm Material: Steel and Glass Speed: up to 180-250 RPM Start Temerature Difference: 20 Weight: 236g Package Included: 1 x Low Temperature Stirling Engine

## Features

- This low temperature stirling engine,runs on a hot cup of water(Do not put it above a candle or other fire) , could be a great conversation starter at work and unique gift to families or friends or for class demonstrations.It is almost ready to run: after the installation, put it on a cup of hot water or Ice water, wait a couple of seconds, gently flip the wheel,then it will run itself.
- Basically you can run this engine up to 20 minutes with a cup of warm water (the engine must be cool). The bigger the temperature difference between the top and bottom plates the higher RPM you will get. This works best with a hot cup of water underneath and an ice cube in a plastic bag on the top (there is plenty of room for one ice cube on top).
- Durable, well made, sytlish, and adjustable.Very fantastic craftsmanship, made with Metal Alloy
- If there is a little noisy, ONLY use a little graphite dry lube or a pencil quieted it down nicely. Do not use oil to lubricate,which will mix with dust in the air, and become a oil-dirt, finally make the friction to be even bigger.The stirling engine can't run smoothy.
- Size: 102 X 102 X 125mm ,Material: Steel and Glass,Weight: 236g

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 21.31 x 14.5 x 11.4 cm; 589.67 g |
| Item model number | 43227-871 |
| Educational Objective(s) | HIGH |
| Language: | English |
| Number of Game Players | 1 |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries Included? | No |
| tech_spec_battery_description_toys | No batteries required |
| Material Type(s) | Glass, Metal, Stainless steel, Steel |
| Remote Control Included? | No |
| Color | red |
| ASIN | B01B2MF3MY |

## Product Details

- **Size:** L
- **Brand:** Usmile
- **Theme:** Stirling
- **Age range (description):** Baby
- **Item dimensions L x W x H:** 21.3 x 14.5 x 11.4 centimeters

## Images

![usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference - Image 1](https://m.media-amazon.com/images/I/61QvycrrwZL.jpg)
![usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference - Image 2](https://m.media-amazon.com/images/I/61aUfpsPAkL.jpg)
![usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference - Image 3](https://m.media-amazon.com/images/I/61KMwya3FDL.jpg)
![usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference - Image 4](https://m.media-amazon.com/images/I/615brDz6l0L.jpg)
![usmile Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference - Image 5](https://m.media-amazon.com/images/I/61AbnGDjVZL.jpg)

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**Shop now:** [https://www.desertcart.hk/products/409301923-usmile-low-temperature-stainless-steel-stirling-engine-generator-desk-models](https://www.desertcart.hk/products/409301923-usmile-low-temperature-stainless-steel-stirling-engine-generator-desk-models)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-08*