What type of devices burns solid fuel in homes?

The correct answer is solid fuel devices, as these are specifically designed to burn solid fuels for heating purposes in homes. Solid fuels include materials like wood, coal, or biomass, which are utilized in various types of heating equipment such as wood stoves, fireplaces, and pellet stoves. These devices effectively convert the thermal energy released from burning solid fuel into heat for residential spaces.

In contrast, gas heaters rely on gas fuels such as natural gas or propane, and electric stoves operate using electricity rather than solid fuels. Solar panels function by converting sunlight into electricity, which can be used for various applications but do not burn fuel at all. Thus, solid fuel devices are distinct and solely focused on utilizing solid materials as fuel for heating, making them the right choice in this context.