Heat cost allocation
The calculation as the regulation defines it, the statement as a dispute demands it
Billing wizard
Five steps, one flow
1 · Scope
Which project, blocks or units the bill covers. The scope comes from the same hierarchy used everywhere else in the panel — and a loop is often the quickest way to select it.
2 · Period
Start and end dates plus the period type (winter or summer). In summer the heating items drop out of the calculation.
3 · Parameters
The individual heating ratio, hot water price and temperature, unit prices and the reading fee are defined here. Ratios are set per project.
4 · Extra charges
Up to five additional charge items — a site management fee, for example — each with its own distribution basis.
5 · Estimation
For meters that could not be read, either the unit's own previous comparable period or the average of comparable units is applied. The minimum heating ratio is set on this step too.
Draft and closing
An unfinished period is kept as a draft. Once checked, the period is closed and the closed period is locked into the record.
Regulatory mapping
Every rule has a field in the panel
Measured consumption and floor area
In central systems, part of the heating cost is shared by measured consumption and the rest by the usable area (m²) of each unit. Turkish regulation sets 70/30 for central and 80/20 for district systems. The ratio is a parameter, not a hard-coded value.
Domestic hot water
Hot water costs are allocated entirely by measured consumption.
Minimum heating
Units heated by a central system are set to a minimum indoor temperature; for units below it, a minimum heating ratio based on the project's region and the month is applied.
Units that cannot be measured
Where equipment failure prevents a share being determined, either that unit's own previous comparable period or the consumption of comparable units in the same period is used.
Statement and posting
The statement carries measurement dates and values, calculation tables, total cost, allocation ratios, the amount due and the payment deadline; statements are posted as a list at the building entrance.
Measuring equipment
Heat cost allocators and meters must comply with metrology legislation; brand, serial number and first reading date are kept in the inventory.
Legal basis
- Energy Efficiency Law No. 5627 · Official Gazette 02.05.2007 / 26510
- Regulation on the Allocation of Heating and Domestic Hot Water Costs in Central Heating and Domestic Hot Water Systems · Official Gazette 14.04.2008 / 26847
- Law No. 3516 on Metrology and Calibration
Period close
From creating a bill to closing the period
Scope is selected in the billing wizard.
Period dates and the total energy cost are entered.
Parameters are checked — individual heating ratio and hot water price above all.
Extra charge items are added.
Indexes are pulled in; unread meters go to estimation.
The calculation runs, is saved as a draft and reviewed.
The period is closed; the posting list is printed and unit statements are delivered.
Outputs
- Unit statement
- A full calculation breakdown for every unit
- Posting list
- For the building entrance; contains no email, phone or unit-specific link
- Delivery tracking list
- Carries personal data and statement links; for management use only
- Checklist
- A review sheet before the period is closed
- Excel export
- Calculation table and index breakdown
Frequently asked questions
What people ask about the calculation
How is the heating cost distributed across units?
Part of the cost is shared by measured consumption and the rest by the usable area of each unit. The ratio is a parameter; Turkish regulation sets 70/30 for central systems and 80/20 for district systems. Domestic hot water is allocated entirely by measured consumption.
A resident asks what the fixed heating charge is for. What do we say?
Heating cost is split into two pools: one shared by the unit's measured consumption, the other by heated area. The area-based part is that unit's share of the building's common heat loss — which is why a unit that never turns the heating on still pays it. The ratio is not fixed; it is a project parameter.
Are winter and summer periods calculated differently?
The period type is chosen as winter or summer when the bill is created. In periods where heating is not running, only items such as hot and cold water and the reading fee are allocated.
Can the posting list go on the noticeboard? Does it contain personal data?
The posting list contains no email address, phone number or unit-specific statement link — it is designed to be posted publicly. The delivery tracking list does carry personal data and statement links; that document is for management only.