Geothermal heating plant

The geothermal heating plant is a heating facility that transfers heat to buildings through the use of heating pipes. It is unlocked by meeting the Boom Town milestone.

Description
While using geothermal energy is not as effective as fossil fuels, it is very safe for the environment. The geothermal heating plant pumps heat from deep within the earth to distribute it to citizens. Make sure the building is connected to upgraded water pipes so it can distribute heating to buildings.