SPF
/ October 19, 2026
Seasonal Performance Factors (SPF) – What installers need to know
Rinnai Applied Head of Design Sean Ehlen evaluates the importance of heat pump system congruity utilising Seasonal Performance Factors (SPF) as the expected performance. Advanced evaluations and verified methodologies are the preferred modes of measurement. A heat pump’s capabilities should be based on actual operating conditions and locations to yield accurate pictures of on-site performance: […]
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