With $1,800 current heating cost, COP 3.5 and $0.28/kWh, estimated heat pump running cost is about $156 and annual saving is about $1,644.
Professional note
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
Regional and unit assumptions
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Assumptions and limitations
This calculator is for planning and education, not legal, tax, medical, immigration, engineering or financial advice.
Use current official rates, contracts, carrier terms, statutes or professional guidance before relying on the result.
The default values are examples. Replace them with the figures from the job, invoice, contract, bill, service or record being checked.
Methodology & Accuracy
How this calculator is checked
CalculationTime pages are built around visible arithmetic: the formula, assumptions, worked example and practical limitations are shown so the result can be checked rather than simply trusted.
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Where a calculator follows a named legal, trade or industry standard, that standard is cited visibly. Otherwise the page uses transparent general arithmetic and states its limits.
Master's Tip
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
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These cards are resolved from calculator data, category context and live-route status so the page links to useful next steps without hand-built link clutter.