The Natural CO2 Loop - trees absorb carbon dioxide from the atmosphere. In the decomposition process in the forest or on combustion in Tulikivi ovens it is returned to the air. The loop begins again.

Ages ago fireplaces were created to help man defeat the environment. Today, Tulikivi designs them to save it.

Ecologists generally agree that wood is carbon neutral. While burning wood releases a significant amount of carbon dioxide - a greenhouse gases also released by fossil fuels - the gas is reabsorbed by growing trees and turned into carbon, which accounts for half the weight of wood. Whether a tree burns in your Tulikivi or decomposes in the forest, it will release the same amount of carbon into the environment in the form of carbon dioxide, methane and other gases. Hypothetically, this cycle can be repeated indefinitely. Fossil fuel can make no such claim.

In the U.S., the EPA has concluded that if more fossil fuels were supplemented by biomass fuels, control of the "greenhouse effect" could then be achieved.

	This diagram shows the amount of carbon monoxide given off by a traditional fireplace and the new Tulikivi whirl chamber fireplace. The world's strictest norms for emissions - those of Austria - have been used as a baseline in both diagrams.
	This diagram shows the amount of Particle emissions given off by a traditional fireplace and the new Tulikivi whirl chamber fireplace.	The Fine Particle Forum - formed as part of the FINE technology programme at TEKES (Finnish Funding Agency for Technology and Innovation) - presented the 2006 Fine Particle Achievement of the Year award to Tulikivi. One of the reasons given for choosing Tulikivi was the considerable effort the company has devoted to its new collection's cleaner combustion technology, which helps reduce emissions from small-scale burning of wood.