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Age by Serial Number
by
Anders Myrmel
from Norway
An independent, free reference site for supported water heater and HVAC date codes, with source-linked guides and a water heater sizing calculator. It uses readable tables, clear format limits and compact browser tools. Unsupported or ambiguous serial formats remain unknown.
×
Age by Serial Number
needs your vote.
Design - 1/3
Can engage the users with considered colors, typography and imagery?
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1-4Not good enough
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5It's ok
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6Good
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7Very Good
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8Great
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9Excellent
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10Perfect
Only Pro User