Energy · RATIOXA GLOSSARY
Annual heat demand
Heat required by a building over a year for space heating and possibly hot water.
Simple definition
Heat required by a building over a year for space heating and possibly hot water.
Why it matters
This term changes how inputs, cash flows or results should be interpreted. RATIOXA keeps it explicit so two options are compared on the same basis.
Worked example
18,000 kWh heat at seasonal performance 3 needs 6,000 kWh electricity.