Question

6. What are the sources of heat?​

Answer 1

Answer:

Heating Energy Sources

Gas Fired Water Heater. Here at Radiantec we often recommend the use of domestic water heaters instead of expensive boilers. ...

Oil Fired Boilers or Water Heaters. Oil can be less expensive than gas in some locations at this time. ...

Wood or Coal Heaters. ...

Solar Collectors. ...

Radiant Retrofit. ...

Electric Heat. ...

Geothermal.

Explanation:

I think it's helpful

^_^

Answer 2

$\huge{\underline{\underline{\mathsf{\purple{Answer}}}}}$

The main and universal source of heat energy is considered to be the sun . Including three other means sources that are electrical , chemical and nuclear energy . Sun releases its energy by electromagnetic waves . Combustion that is a chemical energy radiates heat . Electricity also evolves heat due to its heating effect of electric current . Nuclear sources radiate thermal energy in a massive amount . Also , the energy that is released by earth is termed as Geothermal energy . Fossil fuels are also a source of heat energy radiation .