State of Connecticut
Department of Construction
Services
Bureau of Boilers
History
• 1864 – “An Act Authorizing The Governor
To Appoint Inspectors Of Boilers
• 1875 – part of weights, measures and
inspectional laws
• 1902 – removal of incompetent operators
• Revisions in 1915, 1918, 1920 and 1930
• 1949 – added spark arrestors on portable
steam boilers
• 1958 – Revisions Department of Public
Safety
• 1986 – Added ASME certification – last
major revision
• 2003 – new exceptions mainly new
definitions of public buildings and public
service company
• 2011 – Department of Construction
Services
Present Day
Department of
Construction Services
– Office of State
Building Inspector
All Steam and Hot
Water Boilers not
excluded
Hot Water Heaters
exceeding 200,000
Btu’s per hour
Water Heaters <
200,000 Btu’s per
hour located in
schools, day care
centers, public or
private hospitals,
nursing or boarding
homes, churches or
public buildings as
defined in section 1-1
Antique or model boilers used in public,
nonprofit engineering or scientific
museums and operated for educational,
historical or exhibition purposes having a
shell diameter greater than 12” and a grate
surface area greater than 1 sq ft.
Inspectors
⌂ Department of Construction Services
⌂ Special
⌂ Insurance company boiler inspectors
⌂ Shall inspect all boilers insured by their companies
⌂ Must file reports within 15 days for internals, 30
days for externals
Definitions
•
Boiler means a closed vessel intended:
–
–
(1)
(2)
For use in heating water or other liquids;
For generating steam or other vapors under pressure or vacuum by the direct
application of heat from combustible fuels, electricity, or nuclear energy.
•
Hot Water Heating – a boiler used for heating purposes operating at pressure not
exceeding 160 psi at 250 degrees
•
Hot water supply – a boiler furnishing hot water to be used externally to the system at
pressures not exceeding 160 psi and / or temperatures not exceeding 250 degrees.
•
Hot water heater – means a closed vessel in which water is heated by the
combustion of fuels, electricity, or any other source and withdrawn for external use to
the system at pressures not exceeding 160 psig and shall include the apparatus by
which heat is generated and all controls and devices necessary to prevent water
temperatures from exceeding 210 degrees
•
Low pressure heating boiler – means a boiler operated at pressures not exceeding 15
psig or at water pressures not exceeding 160 psig and temperatures not exceeding
250 degrees.
•
Miniature boiler - means any boiler which does not exceed any of the following limits:
16 inches inside diameter of shell; 5 cubic feet gross volume exclusive of casing and
insulation, 20 square feet of water heating surface, 100 psig allowable working
pressure
•
Power boiler - means a closed vessel in which steam or other vapor (to be used
externally to itself) is generated at a pressure of more than 15 psig by the direct
application of heat.
•
High pressure, high temperature hot water boiler – means a boiler operating at
pressures exceeding 160 psig and/or temperatures exceeding 250 degrees.
Inspections
◊ High Pressure objects - > 15 psi steam,
160 psi water – 1 year certificate.
Symbolized by the S or M stamps ◊ Low Pressure objects - <=15 psi steam,
<= 160 psi water – 2 year certificate.
Usually an H, HLW or U stamp
Major Codes
• American Society of Mechanical
Engineers – Sections I, II, III, IV, V, VI, VII,
VIII (electric water heaters), IX, and CSD-1
(1998 edition)
• The National Board of Boiler and Pressure
Vessel Inspectors – Inspection Code
(1998 edition)
Most Common Violations
 Temperature Controls
 Pressure Relief Valve
Installations
 Undefined Controls
 Expansion Tanks
 Low Water Cut Offs
 Pressure Controls
 Leaks – Waterside or
Fireside
 Pressure Relief Valve
Operation
 Undefined Boiler
Violations
 Pressure gage
installation