Vented Gas Log Calculator


In the realm of home heating solutions, calculating the necessary size for a vented gas log can be crucial for efficient and effective heating. To streamline this process, a vented gas log calculator can prove to be immensely helpful. This article not only provides a functional calculator but also offers insights into its usage, formula, example solutions, FAQs, and a conclusive overview.

How to Use

  1. Input Parameters: Enter the required parameters such as room dimensions, desired temperature, and insulation level.
  2. Click Calculate: Hit the “Calculate” button to initiate the calculation process.
  3. View Results: The calculated size of the vented gas log will be displayed.


The formula for calculating the size of a vented gas log is as follows:

BTU=(Room Length × Room Width × Room Height × Temperature Increase)×Insulation Factor

Example Solve

Suppose we have a room with dimensions: Length = 10 feet, Width = 12 feet, Height = 8 feet. We desire a temperature increase of 20°F with a moderate insulation factor. Using the formula:

BTU=(10×12×8×20)×1.5=28,800 BTU

Thus, a vented gas log with a capacity of 28,800 BTU would be suitable for this scenario.


Q: What are the key parameters required for calculation?
A: The key parameters include room dimensions (length, width, height), desired temperature increase, and insulation factor.

Q: How does insulation factor affect the calculation?
A: The insulation factor considers the thermal efficiency of the room. Higher insulation factors indicate better insulation, thus requiring fewer BTUs for heating.

Q: Is this calculator applicable for all room sizes?
A: Yes, this calculator can be used for rooms of various sizes. However, accurate measurements and considerations of insulation are essential for precise results.


In summary, a vented gas log calculator serves as a valuable tool for determining the appropriate size of a gas log based on specific heating requirements and room characteristics. By following the provided guidelines and utilizing the calculator, homeowners can ensure optimal heating solutions tailored to their needs.

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