Technical directory · Housing
Two-storey house airflow
Room-to-room temperature differences across two floors can reflect duct balance, return design or envelope losses.
What to observe
Note temperatures and airflow complaints by room and time, plus filter and thermostat settings.
A field example
If upstairs rooms are cold only during heating, compare return locations and thermostat position before assuming dusty ducts. A balancing issue can persist after every branch is vacuumed.
What the written work should say
Ask for an airflow/duct diagnosis rather than defaulting to cleaning every branch.
Where this task stops
Dust removal will not correct undersized ducts or poor insulation.