Planning resources

Heating Planning Tools

Use simple planning calculators to prepare for a service or design conversation. Final equipment and system decisions require professional verification.

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These are rough planning tools, not final equipment-selection or engineering calculations. Heating design must be verified from the building, equipment, piping, emitters, fuel, and manufacturer data.

Rough room BTU planning

Pool heat-up estimate

Pressure conversion

This converter does not determine the correct operating pressure for a system.

Technical service standards

Test before replacingControls, combustion, venting, condensate, water-side flow, and safeties are evaluated before a replacement recommendation.

OEM-correct repairsCorrect model-specific parts, gaskets, setup procedures, and startup testing are prioritized.

Documented findingsClear findings, repair scope, and approved pricing are reviewed before work proceeds.

Safety-led serviceGas, combustion, venting, electrical, and hydronic conditions are treated as one connected system.

Technical resources

Understand the system before approving the repair.

Use our knowledge hub for plain-language explanations of boiler lockouts, pressure problems, hydronic flow, combustion testing, condensate faults, OEM parts, and maintenance planning.

Browse technical guides Use heating help assistant

Boiler lockout diagnostics Boiler pressure problems Combustion analysis Expansion tank service Radiant floor heating Error-code guidance