HOT WATER HEATING AND SUPPLY BOILERS

  1. § R. 408.4251 - Existing hot water boilers
  2. § R. 408.4253 - Hot water boilers included; exempted
  3. § R. 408.4255 - Working pressure and temperature; hot water steel-plate boilers
  4. § R. 408.4257 - Working temperature; cast-iron hot water boilers
  5. § R. 408.4258 - Washout openings; other than cast-iron boilers
  6. § R. 408.4259 - Washout openings; cast-iron boilers
  7. § R. 408.4260 - Furnace access openings
  8. § R. 408.4263 - Threaded connections
  9. § R. 408.4265 - Minimum distance required between boiler and floor
  10. § R. 408.4267 - Minimum size access door in a boiler setting
  11. § R. 408.4268 - Feedwater connections
  12. § R. 408.4269 - Oil heaters
  13. § R. 408.4270 - Provisions for thermal expansion in hot water systems
  14. § R. 408.4272 - Minimum capacity of closed-type tank
  15. § R. 408.4274 - Internal parts subject to deterioration
  16. § R. 408.4277 - Connections for relief valves
  17. § R. 408.4278 - Relief valves
  18. § R. 408.4280 - Lifting devices
  19. § R. 408.4281 - Material of seats and disks of relief valves
  20. § R. 408.4283 - Relief valve size
  21. § R. 408.4284 - Relieving capacity required
  22. § R. 408.4286 - Relief valve connections
  23. § R. 408.4287 - Shutoff valves prohibited
  24. § R. 408.4288 - Area of and support of relief valve discharge pipes
  25. § R. 408.4290 - Marking of safety or relief valves
  26. § R. 408.4291 - Indirectly heated hot water supply tanks
  27. § R. 408.4292 - Pressure or altitude gauges
  28. § R. 408.4293 - Thermometers
  29. § R. 408.4294 - Temperature combustion regulators
  30. § R. 408.4296 - Bottom blowoffs or drain valves
  31. § R. 408.4298 - Jacketed boilers

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.

No prior version found.