Printable Water Heater Sizing Sheet
This worksheet is for anyone planning a bathtub and checking whether a water heater can supply enough hot water. It includes a title, Name and Date fields, a rule of thumb that tank capacity should be at least two-thirds of tub capacity, and four practice problems in a two-column layout. The problems ask for minimum tank size for 45, 60, and 80 gallon tubs, plus the weight of 60 gallons of water. An answer key is included on the second page.
Free printable · PDF
- 2 pages
- US Letter — choose “Fit to page” for A4
- PDF, 94 KB
Free for personal, family and classroom use.
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Use the first page to work through the problems before looking at the answers. Compare each tub size to the two-thirds rule, then fill in the answers or review the key to check your math. This sheet is useful for quick planning, estimating heater size, and keeping tub capacity notes in one place.
Good for
- Check tub size against heater capacity
- Practice basic bathtub sizing calculations
- Review hot water planning numbers
Tip: Print double-sided to keep the problems and answer key together.
4 files · PDF, XLSX, DOCX
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This sheet plus 3 more in one download, with the editable Excel and Word files. Printable bathtub size chart, a bathroom measuring worksheet, a tub selection checklist and a water heater sizing worksheet.
$3.00 USD, one-time 4 files · about $0.75 each
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