Boilers and Water Heaters
6 articles
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IRC 2024 Boiler Installation Requirements: ASME Stamping, Clearances, and Safety Controls
What does IRC 2024 require for residential boiler installation, including ASME stamping, clearances, operating controls, and mounting?
M2001
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IRC 2024 Boiler Pressure Relief Valve Requirements: 30 PSI, Discharge Piping, and ASME Stamping
What does IRC 2024 require for a pressure relief valve on a residential hot water boiler, including discharge piping, shutoff prohibition, and testing?
M2002
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IRC 2024 Expansion Tank Requirements for Hydronic Boiler Systems
What does IRC 2024 require for expansion tanks on closed-loop hydronic heating systems, including type, pre-charge pressure, and location?
M2003
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IRC 2024 Hydronic Expansion Tank Sizing: Formulas, Bladder vs. Steel, and When to Add a Second Tank
How do you size a hydronic expansion tank under IRC 2024, including the acceptance factor formula, bladder vs. compression tank differences, and when a second tank is needed?
M2003
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IRC 2024 Hydronic Heating Controls: Aquastat, Zone Valves, and Outdoor Reset Requirements
What does IRC 2024 require for hydronic system controls including aquastat, zone valves, circulator relays, and outdoor reset control on larger boilers?
M2004
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IRC 2024 Water Heater vs. Boiler: Code Classifications, Combi-Systems, and Dual-Use Concerns
What is the difference between a water heater and a boiler under IRC 2024, and how are combi-boilers that provide both domestic hot water and space heating classified and regulated?
M2001
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