Practical guide
Understanding heating cost planner — sensitivity table
Everyday editorial team · GEOINNOVATION CO., LTD · Published · Updated
What this calculation is for
A heating budget helps compare fuel consumption and seasonal costs without assuming that two heating sources use interchangeable units. Efficiency and climate influence actual household energy needs.
How the method works
Entered usage is priced in the unit named on the form and combined with the stated fixed or efficiency assumptions. Keep the utility’s billing unit consistent with the amount and unit price you supply. The displayed model uses: Seasonal fuel cost = use × days × price ÷ efficiency; add fixed service fees.
A worked example
For an illustrative heating cost planner scenario, use Fuel units used each day: 4 units/day; Heating days: 150 days; Price per fuel unit: 1.8 $/unit; System efficiency: 90 %; Seasonal delivery and service fees: 200 $; Annual efficiency-upgrade savings estimate: 0 $. The modeled estimated seasonal heating cost is $1,400. These are example assumptions, not current prices, official benefit amounts or personalized advice.
Assumptions and real-world differences
The tool is not a building heat-loss assessment and does not size equipment. Weather, insulation, thermostat settings, tariffs and system maintenance can change actual consumption. Fuel unit, measured usage, system efficiency and local fees must be verified with your utility.
Reading the fuel units used each day sensitivity table
The tool evaluates the same model across a range of fuel units used each day values while holding other assumptions constant. Choose a realistic low value, high value and number of points. Each row reports the same headline measure; the table is a set of conditional calculations, not a probability distribution or a forecast. Input-step rounding can make nearby rows equal.
Reproduce this tool’s example
These fixed example inputs are independent of edits you make above. Enter them in this tool to reproduce the result, then replace them with your own assumptions.
- Minimum fuel units used each day
- 2 units/day
- Maximum fuel units used each day
- 6 units/day
- Number of comparison points
- 5 points
- Heating days
- 150 days
- Price per fuel unit
- 1.8 $/unit
- System efficiency
- 90 %
- Seasonal delivery and service fees
- 200 $
- Annual efficiency-upgrade savings estimate
- 0 $
Sensitivity analysis: 5 comparison points
Fuel units used each day ranges from 2 units/day to 6 units/day.
- Fuel units used each day: 2 units/day: $800
- Fuel units used each day: 3 units/day: $1,100
- Fuel units used each day: 4 units/day: $1,400
Frequently asked questions
- Can I use the same quantity for gas and electricity?
- No. Match each consumption unit to its own price, or use a verified energy-equivalence conversion first.
- Which inputs should I check before using this heating cost planner estimate?
- Check fuel units used each day, heating days, price per fuel unit, system efficiency, seasonal delivery and service fees, annual efficiency-upgrade savings estimate. Match each field’s unit and time period, then compare the detailed rows rather than treating the headline alone as the complete answer.
- Does the most favorable row show the most likely outcome?
- No. The table assigns no likelihood to any row. It shows how the result responds to the chosen assumption, and you remain responsible for selecting a plausible range.