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The homeowner field manual
Learn how Manual S uses design loads and manufacturer performance data to select heat pump capacity across cooling and heating conditions.
Use this line-by-line checklist to compare the work behind heat pump bids—not just the equipment price—and flag missing scope before you sign.
Use this evidence-based checklist to verify credentials, compare heat-pump proposals, confirm commissioning, and identify contract red flags.
Heat-pump size should come from a load calculation and climate-specific performance data, not floor area alone. Learn what evidence to ask for.
A useful heat-pump budget compares complete scopes, not a national average. See which line items change installed cost and how to normalize quotes.
