1. What is an Oil Boiler Consumption Calculator?

Definition: This calculator estimates the oil consumption rate (litres per hour) for a boiler based on its power output, fuel calorific value, and efficiency.

Purpose: It helps homeowners and engineers estimate fuel usage and operating costs for oil-fired boilers.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q_f \) — Oil consumption (litres/hour)
• \( P_{kW} \) — Boiler power output (kilowatts)
• \( CV_{oil} \) — Calorific value of oil (MJ/litre, typically ~38)
• \( \eta \) — Boiler efficiency factor (typically 0.8-0.9)

Explanation: The formula converts boiler power to energy requirements and divides by the energy content of the fuel, adjusted for boiler efficiency.

3. Importance of Oil Consumption Calculation

Details: Accurate consumption estimates help with fuel budgeting, tank sizing, and comparing boiler efficiency.

4. Using the Calculator

Tips: Enter the boiler power in kW, oil calorific value (default 38 MJ/L), and efficiency factor (default 0.9). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical calorific value for heating oil?
A: Standard heating oil has about 38 MJ per litre, but this can vary slightly by supplier and season.

Q2: How do I find my boiler's efficiency?
A: Check manufacturer specifications or use 0.85 as a reasonable estimate for modern boilers.

Q3: Why multiply by 3600 in the formula?
A: This converts kW (kJ/s) to total kJ per hour (3600 seconds in an hour).

Q4: How can I reduce my boiler's fuel consumption?
A: Improve insulation, maintain your boiler regularly, and consider upgrading to a more efficient model.

Q5: Does this include standby losses?
A: No, this calculates consumption only during active operation. For total usage, consider duty cycle.