How Often to Change Every Filter in Your House
A walk through every filter in a typical house, what actually governs each interval, why annually is usually the wrong answer, and the size trick worth doing once.
Guide
Property records · PR-07
Filter Change Log
A free printable log of every filter in a property — heating, ventilation, water and extraction — with sizes and part numbers recorded once.
Download Free · no sign-up
2 pages. Choose your paper size — both versions are laid out identically, so neither one gets shrunk to fit.
Print it and write on it
Fill it in type and save
The fillable versions have real form fields — open them in any PDF reader, type into them and save. Printing help.
What this sheet is for
Stop measuring a clogged filter in a dark loft. Write the size down the first time, then reorder without taking the old one out.
Who it is for
Homeowners and landlords with ducted heating, ventilation, water filtration or extraction to look after.
How to use it
- Walk the property and list every filter you can find, including the ones you have been ignoring.
- Record the size or part number the first time you change each one.
- Note the interval the manufacturer gives.
- Buy spares in pairs and note where they are kept.
What is on the sheet
2 pages, in this order:
Page 1
Printed under the title: Every filter in the building on one sheet — heating, ventilation, water, extraction — with the size written down so you can reorder without taking the old one out first.
The point of this sheet. Write the filter size and part number the first time you change one. Measuring a clogged filter in a dark loft is the single most avoidable job in home maintenance.
Table, 16 rows: Filter / location · Size or part no. · Change interval · Last changed · Next due · Changed · Next due
Page 2
Ruled lines: Where spares are kept
Ruled lines: Notes and anything specific to yours
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