Heating Values – Moisture Content Below 20%

Choosing the right firewood is essential for efficient and environmentally friendly heating. The following table shows the heating values and energy content of different wood types:

| Wood | Heating Value | Energy Content | Energy Content |

Efficiency of Heating Appliances

The choice of heating appliance affects the efficiency of heating. Here are the efficiencies of different heating appliances:

• Open Fireplace (Direct to Chimney): < 30%

• Modern Fireplace Stove: 80-85%

• Stove, Oven: 50-70%

Environmental Friendliness of Wood Burning

Wood burning is an environmentally friendly heating method as wood is a carbon-neutral fuel in terms of climate impact. The carbon dioxide released during burning is absorbed by the growth of new forests and does not increase the amount of carbon dioxide in the atmosphere. Although small-scale wood burning emits particulate matter, simple measures can significantly reduce these emissions.

Fireplace Heating Guidelines

Always follow the manufacturer’s instructions and keep the following fireplace heating guidelines in mind:

• Use Dry Firewood: If the firewood is stored outdoors, bring it indoors a couple of days before use.

• Open the Damper: Ensure the smoke can escape freely through the chimney.

• Empty the Ash Pan: If the ash reaches the grate, there is too much ash.

• Arrange Logs with Air Gaps: At least one-third of the fireplace height should be free space.

• Top-Down Ignition: Use kindling.

• Add Logs Only When the Previous Ones Are Almost Burned Through.

• Close the Damper Only After the Coals Have Darkened.

Amount of Firewood Needed for Complete Heating

Using the right amount of firewood ensures efficient heating and maximum heat energy use. Here's a step-by-step guide on how to calculate the required amount of firewood:

Amount of Firewood for the Fireplace:

• General Rule: You need 1 kg of firewood for every 100 kg of fireplace weight.

Example Calculation:

• If your fireplace weighs 1500 kg, calculate as follows:

  • Weight: 1500 kg / 100 kg = 15.

  • Required Firewood: 15 kg.

Weighing Firewood:

• Measure the required amount of firewood before burning to ensure optimal heat energy and clean burning.

Arranging Logs:

• Place firewood with air gaps in the fireplace to ensure better air circulation and more efficient burning.

With this simple guide, you can ensure your fireplace heats efficiently and maximizes heat energy use.