§ Chapter 21 IRC 2024
Hydronic Piping
6 entries from Chapter 21 of IRC 2024, organized by section number. Each entry covers what the code requires, why it exists, what inspectors look for, and common mistakes.
§ 01 Sections
All 6 entries.
Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.
Section
Title
Question
M2101
IRC 2024 Hydronic Piping Materials: Approved Pipe Types for Hot Water Heating Systems
M2101
What pipe materials does IRC 2024 approve for hydronic heating systems, and which are prohibited?
What pipe materials does IRC 2024 approve for hydronic heating systems, and which are prohibited?
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M2103
IRC 2024 Radiant Floor Heating: Pipe Spacing, Tube Depth, and Manifold Requirements
M2103
What does IRC 2024 require for radiant floor heating pipe spacing, tube depth in slabs, and manifold placement?
What does IRC 2024 require for radiant floor heating pipe spacing, tube depth in slabs, and manifold placement?
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M2104
IRC 2024 Hydronic Pipe Insulation: Where It Is Required and Minimum R-Values
M2104
Does IRC 2024 require insulation on hydronic heating pipes, and what is the minimum R-value?
Does IRC 2024 require insulation on hydronic heating pipes, and what is the minimum R-value?
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M2105
IRC 2024 Hydronic Zone Valves: Independent Zone Control, Bypass, and Balancing Requirements
M2105
What does IRC 2024 require for zone valves in a hydronic heating system, and how must zones be independently controlled?
What does IRC 2024 require for zone valves in a hydronic heating system, and how must zones be independently controlled?
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M2106
IRC 2024 Radiant Floor Pressure Testing: Pre-Pour Requirements and Leak Procedures
M2106
What pressure test does IRC 2024 require for radiant floor tubing before a concrete pour, and what happens if the test fails?
What pressure test does IRC 2024 require for radiant floor tubing before a concrete pour, and what happens if the test fails?
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M2107
IRC 2024 Hydronic Glycol Antifreeze: Types, Concentrations, Backflow Prevention, and Material Compatibility
M2107
When does IRC 2024 require glycol antifreeze in a hydronic system, and what type is permitted?
When does IRC 2024 require glycol antifreeze in a hydronic system, and what type is permitted?
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§ 02 Chapter navigation