Thomas Grisenti
Orange
Summary
Boiler Technician with extensive experience adept in combustion analysis and system troubleshooting. Well educated on hot water , steam and chiller systems . Well versed in controls and operations . As well as pipping , electrical and mechanical work.
Overview
16
16
years of professional experience
Work History
Operating Engineer
Disneyland Resort
Anaheim, CA
02.2025 - Current
- Adjusted and serviced boilers, heat exchangers, chillers and compressors.
- Worked with large HVAC systems such as boilers, heat exchangers, chillers and furnaces.
- Conducted preventive, corrective and predictive maintenance actions.
- Collected and tested water samples from cooling towers and other systems.
- Oversaw start-up, operations and shutdown procedures.
- Optimized energy consumption by constantly monitoring equipment operations and making necessary adjustments.
- Maintained, installed, repaired and altered piping systems, plumbing fixtures, traps and vent pipes.
- Installed, repaired and maintained water, gas and steam piping systems.
- Maintained and serviced pumps and motors
Boiler Technician
DB Sales And Service
Anaheim, CA
03.2023 - 11.2024
- Preformed annual services / inspections on a variety of different boilers , chillers and hot water systems
- Trouble shoot electrical problems on units
- Combustion tuning to meet emissions and keep units running efficiently
- Program controls
- Analyzed problems and took appropriate action to maintain continuous and reliable operation of equipment and systems.
- Worked with large HVAC systems such as boilers, chillers and furnaces.
- Inspected systems, equipment and components to determine maintenance needs.
- Oversaw start-up, operations and shutdown procedures.
- Increased boiler combustion efficiency and lowered emissions by optimizing burner performance.
- Used automatic gas feeds and pumps to fire gas-fed boilers.
- Adjusted valves and controls to set specified water level and steam pressure of boiler.
- Observed pressure, temperature and draft meters to verify correct operation of automatic combustion control systems, feed water regulators and burners.
- Monitored heating and cooling system performance through alarms, temperature and pressure differentials.
- Observed boiler and auxiliary units to detect malfunctions, change burners and tighten pipes and fittings.
- Responded promptly to emergency situations involving boilers to minimize damage or risk of injury.
- Maintained accurate records of work performed, materials used, and time spent on each project for proper documentation purposes.
- Demonstrated flexibility in adapting to changing schedules or priorities as dictated by business needs or project demands.
Boiler Technician
California Boiler
Santa Ana, CA
01.2021 - 03.2023
- Increased boiler efficiency by conducting regular maintenance and repairs.
- Maximized equipment lifespan through routine inspections, cleaning, and preventive maintenance tasks.
- Reduced downtime with proactive troubleshooting and efficient problem-solving skills.
- Enhanced safety protocols by implementing thorough inspections and identifying potential hazards.
- Maintained accurate records of work performed, materials used, and time spent on each project for proper documentation purposes.
- Improved overall system performance by optimizing control settings and calibrations.
- Ensured compliance to regulations by adhering to local, state, and federal codes during installations and repairs.
- Observed boiler and auxiliary units to detect malfunctions, change burners and tighten pipes and fittings.
- Adjusted valves and controls to set specified water level and steam pressure of boiler.
- Used automatic gas feeds and pumps to fire gas-fed boilers.
- Increased boiler combustion efficiency and lowered emissions by optimizing burner performance.
- Worked with large HVAC systems such as boilers, chillers and furnaces.
Electrician /General Construction Worker
Sure Line Electric
Atascadero, CA
10.2020 - 01.2021
- Worked from ladders, scaffolds and lifts to install, maintain, or repair electrical wiring equipment and lighting fixtures in ceilings, on roofs and on towers.
- Installed and maintained low voltage systems, including security, fire alarm, and data communication networks.
- Installed and wired electrical transformers, service panels, and circuit breakers.
- Used testing instruments such as ohmmeters, voltmeters, ammeters, and multimeters.
- Read and interpreted electrical, mechanical, and architectural drawings and electrical code specifications for wiring layouts.
- Preformed general construction
- Operated forklifts and boom lifts to complete various tasks.
- Helped with erecting scaffolding and ladders.
Mechanic / Sales / Service
Orange County KTM
Orange, CA
04.2010 - 09.2020
- Repaired Motorcycles from tire changes to complete motor rebuilds
- Sold parts and kept inventory of shop
- Sold new unsed motorcycles
- Inspected and tested equipment to locate worn and damaged parts.
- Replaced damaged, missing, or defective parts with new and refurbished components.
- Performed diagnostic and troubleshooting procedures to find and identify root causes of mechanical issues.
- Performed preventative maintenance oil changes and brake jobs to preserve performance and reliability of vehicles.
- Completed full vehicle inspections to check for leaks, damage, or other issues of concern.
- Disassembled defective parts to make proper repairs.
- Inspected and tested vehicles and completed preventive maintenance such as engine tune-ups, oil changes, tire rotations, wheel balancing, and filter replacement.
- Repaired engine and transmission components to rebuild engine and enhance vitality.
Education
High School Diploma -
El Modena High School
Orange, CA05-2012
Skills
- Combustion analysis
- Burner tuning
- Instrument Calibration
- System troubleshooting
- Piping installation
- Steam systems
- Boiler inspection
- Heat exchangers
- Control systems
- Water Treatment
- Chillers
- Compressors
Timeline
Operating Engineer
Disneyland Resort
02.2025 - Current
Boiler Technician
DB Sales And Service
03.2023 - 11.2024
Boiler Technician
California Boiler
01.2021 - 03.2023
Electrician /General Construction Worker
Sure Line Electric
10.2020 - 01.2021
Mechanic / Sales / Service
Orange County KTM
04.2010 - 09.2020
High School Diploma -
El Modena High School