Heating bills: plan for winter, not just an average month

Check the system and billing arrangement

Record whether heating is electric, gas, central building heating or another system. Ask whether the monthly payment is a fixed charge, a usage bill or an advance that is reconciled later. Identify any heating already included in rent. A single utility range cannot tell you how much a particular apartment will consume or whether its building charges cover the same service.

Use a full-year pattern where possible

Request comparable dated bills with private details removed. Note floor area, occupancy and the period covered. Illustrative annual heating cost of 1,200 gives a planning allowance of 100 per month, but does not imply a bill of 100 in January. If only a summer bill is available, keep winter as an unresolved scenario rather than multiplying summer spending by twelve.

Stress-test cash, not only the annual total

Make a second plan using a documented higher-use period or an explicitly assumed higher consumption. Separate a tariff change from a change in usage so you can see what drives the difference. Check whether reconciliation creates a large later payment. Do not label the scenario a confidence interval or promise savings from insulation you have not inspected.

Sources and further reading

• Lifovra — methodology and limitations