Boiler Memos and Technical Grams
April 4, 2025 — Required NDE for Scotch Marine Boilers installing a flush patch to tube sheet
March 21, 2023 — Inspection of Power Miniature Boilers Integrally Installed in a Steam Sterilizer
December 15, 2022 — Carbon Monoxide (CO) Detector Rules - Verification of 50 ppm Setpoint
September 6, 2022 — Carbon Monoxide Detector Rules Effective Dates
September 24, 2019 — Technical Gram 2019-01, Tropical Storm Imelda
October 29, 2018 — Technical Gram 2018-06, Changes to the Boiler Certificates of Operation
July 12, 2018 — Technical Gram 2018-05, Leased Boilers
July 12, 2018 — Technical Gram 2018-04, Rental Boilers (Portable Boilers)
May 14, 2018 — Technical Gram 2018-02, Electric Power Boiler Water Level Indicators
February 26, 2018 — Technical Gram 2018-01, Water Supply Boilers and Potable Water Heaters
September 20, 2017 — Technical Gram 2017-05, Hurricane Harvey: Boiler Extensions
September 19, 2017 — Technical Gram 2017-04, Hotsy Boilers
August 7, 2017 - Technical Gram 2017-03, PHP Boilers
August 7, 2017 — Technical Gram 2017-02, Proper Venting Requirements, Applicable to Extensions Only (Texas Boiler Rule 16 TAC Section 65.606)
May 25, 2017 — Technical Gram 2016-04 AMENDED, Routine Repair Stamping
January 24, 2017 — Technical Gram 2017-01 Type B Vent Piping
November 15, 2016 — Technical Gram 2016-03, Tube Plugging Requirements; Texas Administrative Code, Chapter 65, Section 65.612(e)(2)(E) Plugging of boiler tubes (excluding tubes in headers of economizers, evaporators, superheaters, or reheaters).
November 15, 2016 — Technical Gram 2016-05, Rule 65.602. Chimneys and Vents (Adopted effective June 15, 2015, 40 TexReg 3121) All chimneys and vents shall be installed in accordance with Boiler Manufacture recommendations and Chimney/Vent Manufacturer recommendations.
December 17, 2015 — Superior Boiler - Creek Model Condensing Boiler Inspection Openings
January 17, 2012 — Hoffman Model JEL-3 Hat Steamers Low Water Cut Off Device (also 175kb PDF attachment)
January 11, 2012 — ASME Section I Boiler Safety Valve Changeover Valve (also 740kb PDF attachment)
August 31, 2011 — Noritz Tankless Water Heater LWFC Devices
July 28, 2011 — Boiler Low-Water Fuel Cutoff Devices
July 28, 2011 — Drain Valves on Hot Water Heating and Supply Boilers
July 2, 2007 — Inspection Reports and Repair Requirements Forms
February 8, 2007 — Takagi MOBIUS T-M1 Instantaneous Water Heater
May 23, 2006 — Stacked Boilers (PVI)
May 23, 2006 — Stack Rack - Munchkin
March 27, 2006 — Noritz Tankless Water Heaters
March 27, 2006 — Boiler Technical Grams
September 27, 2005 — Johnson Controls F61 Series Flow Switches
August 31, 2005 — Lochinvar Multi-Stack Systems
May 24, 2005 — AERCO BK2.02 Hot Water Heating Boilers
April 26, 2005 — Potable Water Heaters
February 15, 2005 — Riverside Hydronics Stacked Boilers
December 16, 2004 — Hamilton Engineering Stacked Boilers
August 9, 2004 — Stacked Boilers (Laars)
April 15, 2004 — Electric Boiler Stamping
April 14, 2004 — Stacked Boilers (RBI)
March 29, 2004 — Boiler Extensions
February 18, 2004 — Stacked Boilers (PVI)
November 21, 2003 — Stacked Boilers (Raypak)
November 20, 2003 — Stacked Boilers (A. O. Smith Lockinvar)
November 12, 2003 — Acceptable Water Flow Switches
August 18, 2003 — Multiple Pressure Steam Generators
June 5, 2003 — Boiler Law Change Regarding Extensions
April 23, 2002 — Boiler Low-Water Fuel Cutoff Devices
October 5, 2000 — Flow Switches
October 21, 1999 — Stacked A. O. Smith Boilers
