Home
Back
Heating Area Formula:
| From: | To: |
The Square Footage Calculator For Heater estimates the heating area that can be effectively covered by a heater based on its BTU output and the heating factor. This helps determine the appropriate heater size for different spaces.
The calculator uses the heating area formula:
Where:
Explanation: The formula calculates the area a heater can effectively warm based on its output capacity and the heating requirements per square foot.
Details: Proper heater sizing is crucial for energy efficiency, comfort, and safety. Undersized heaters won't adequately heat the space, while oversized heaters may cycle too frequently and waste energy.
Tips: Enter the heater's BTU rating and the appropriate heating factor (typically 30-60 BTU/sq ft depending on climate and insulation). All values must be positive numbers.
Q1: What is the typical BTU factor range?
A: The factor typically ranges from 30-60 BTU per square foot, with 30 for well-insulated spaces in mild climates and 60 for poorly insulated spaces or colder climates.
Q2: How do I determine the right factor for my space?
A: Consider your climate zone, insulation quality, ceiling height, and number of windows. Colder climates and poor insulation require higher factors.
Q3: Are there other factors to consider besides square footage?
A: Yes, ceiling height, window quality, insulation, number of exterior walls, and climate all affect heating requirements.
Q4: What if my space has high ceilings?
A: For ceilings over 8 feet, increase the calculated area by 10-25% depending on the height difference.
Q5: Should this calculation be used for whole-house heating?
A: This provides a basic estimate. For whole-house systems, consult with HVAC professionals who can perform detailed heat loss calculations.