Floor Heating Systems
Baltimore City Code, Building Codes, Part X, Section 2103
in effectSection 2103. Floor Heating Systems
2103.1 Piping materials.
Piping for embedment in concrete or gysum materials must be standard-weight steel pipe, copper tubing, cross-linked polyethylene / aluminum / cross-linked polyethylene (PEX-AL-PEX) pressure pipe, chlorinated polyvinyl chloride (CPVC), cross-linked polyethylene (PEX) tubing, or polypropylene (PP) with a minimum rating of 100 psi at 180°F (690 kPa at 82°C).
2103.2 Thermal barrier required. {As in IRC}
2103.3 Piping joints.
Piping joints that are embedded must be installed in accordance with the following requirements:
1. - 2. {As in IRC}
3. {Not Adopted}
4. - 7. {As in IRC}
2103.4 Testing. {As in IRC}
Source: City of Baltimore Department of Legislative Reference, City of Baltimore Law Library (codes.baltimorecity.gov; Open Law Library bulk XML)URL: https://codes.baltimorecity.gov/us/md/cities/baltimore/code/building-codes/X/2103Fetched: 10/25/2026