# Heat-transfer fluids and heat pipes: Overview

Oils, salts, refrigerants and pipes that carry heat where needed

Source page: https://www.materialinsights.org/energy/e_heat_carriers/overview/

What this tile covers Fluids and devices that move heat: thermal oils, molten salts, refrigerants, heat pipes and trucked heat stores.

#### Key facts

| **Form** | Heat |
|---|---|

#### Included from the reference tables

- Thermal oils, molten salts, refrigerants
- Heat pipes
- Mobile thermal storage
- Natural ice and snow (historic ice trade)
- Conduction, convection and radiation

#### Also in Heat, motion and embodied energy
[DHN District heating and cooling networks](https://www.materialinsights.org/energy/e_district_heat_net/)[MPT Mechanical power transmission](https://www.materialinsights.org/energy/e_mechanical_transmission/)[EmE Embodied energy trade](https://www.materialinsights.org/energy/e_embodied/)

Explore paths from here
 More on this tile in the tabs above: how it works, efficiency and losses, technology advances, value chain, geopolitics and regulation, unit economics, impact on the biosphere.

## Other sections

- [Summary](https://www.materialinsights.org/energy/e_heat_carriers/index.md)
- [Correlation](https://www.materialinsights.org/energy/e_heat_carriers/correlation/index.md)
- [How it works](https://www.materialinsights.org/energy/e_heat_carriers/explain/index.md)
- [Efficiency and losses](https://www.materialinsights.org/energy/e_heat_carriers/efficiency/index.md)
- [Technology advances](https://www.materialinsights.org/energy/e_heat_carriers/advances/index.md)
- [Value chain](https://www.materialinsights.org/energy/e_heat_carriers/valuechain/index.md)
- [Geopolitics and regulation](https://www.materialinsights.org/energy/e_heat_carriers/geopolitics/index.md)
- [Unit economics](https://www.materialinsights.org/energy/e_heat_carriers/economics/index.md)
- [Impact on the biosphere](https://www.materialinsights.org/energy/e_heat_carriers/biosphere/index.md)
- [Relationships](https://www.materialinsights.org/energy/e_heat_carriers/links/index.md)