---
product_id: 23424611
title: "Usmile® Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference"
brand: "usmile"
price: "S$10"
currency: SGD
in_stock: false
reviews_count: 8
url: https://www.desertcart.sg/products/23424611-usmile-low-temperature-stainless-steel-stirling-engine-generator-desk-models
store_origin: SG
region: Singapore
---

# 20 min runtime Manual operation Temperature differential Usmile® Low Temperature Stainless Steel Stirling Engine Generator Desk Models Education Toy Model Run Off The Temperature Difference

**Brand:** usmile
**Price:** S$10
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Fuel Your Curiosity with Every Degree!

## 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?** S$10 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/23424611-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

- • **Eco-Friendly Fun:** Runs on simple temperature differences—no batteries required!
- • **Ignite Curiosity:** Perfect for sparking conversations at work or in classrooms.
- • **Unique Gift Idea:** A standout gift for friends and family who love science!
- • **Educational Value:** A hands-on learning tool that demonstrates thermodynamics.
- • **Craftsmanship Excellence:** Durable metal alloy construction for lasting enjoyment.

## Overview

The Usmile Low Temperature Stainless Steel Stirling Engine Generator is an educational toy that operates on the principle of temperature difference, making it a unique conversation starter and a fantastic gift. With a runtime of up to 20 minutes on a cup of warm water, this stylish model is crafted from durable metal alloy and glass, perfect for demonstrating thermodynamic principles in a fun and engaging way.

## 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 |
|---------------|-------|
| Material Type | Stainless Steel, Glass |
| Subject Character | Stirling |
| Theme | Stirling |
| Item Weight | 1.3 Pounds |
| Item Dimensions | 8.39 x 5.71 x 4.49 inches |
| Size | Large |
| Operation Mode | Manual |
| Educational Objective | HIGH |
| Power Source | Manual |
| Number of Players | 1 |

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great!
*by J***. on August 24, 2023*

Coolest new toy I've had in a while. 🙂

### ⭐⭐⭐⭐ Melted the inner displacer last night, happy to order another one today.
*by N***E on June 15, 2016*

DO NOT LEAVE OVER AN OPEN FLAME such as a zippo.Melted the displacer in mine last night. Besides that though this is a very fun toy and fairly entertaining. It needs a fair temperature difference such as placing it on top of a cup of coffee or tea but it runs great. A bit squeeky and a little louder than I expected, but the novelty of having a fun piece like this is worth it.Even though I ruined mine I'd definitely purchase again.

### ⭐⭐⭐⭐⭐ well built good value.
*by M***Z on February 11, 2018*

well made precision built little machine, good value for the money. with water well below scalding temperature in a styrofoam soda cup, and an ice cube on the top plate my little LTD sterling will run for an hour. starts out abot 180 rpm, still running at the end 30 rpm. gonna put some graphite on the friction points & see what that does. pobably gonna try some boiling water & see how fast it will go.good well built product. i would recommend it.

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*