Technical Blog
Analysis, guides and technical advice to optimize the performance of your heating, air conditioning and ventilation equipment.
Combustion air: requirements and field checks
Why combustion air is a critical point in commercial boiler rooms in Québec, and how to verify a mechanical room is getting enough of it.
Purging and filling a hydronic circuit: the clean method
Purge and fill a hydronic circuit without trapped air: cold-fill pressure, air separator, loop-by-loop order and the mistakes that cause callbacks.
Setting gas pressure at the manifold: a field guide
How to measure and set gas manifold pressure: manometer, typical natural gas and propane values, and why the rating plate is the only target that counts.
PPE for mechanical work: a field compliance checklist
Which PPE is mandatory on a mechanical job site in Quebec? A station-by-station checklist with CSA standards and CNESST employer duties.
Photo documentation of service jobs: best practices
How to document an HVAC service call in photos: nameplate, before/after, traceability. A field method for maintenance records that actually hold up.
Sequence of operations: diagnosing a burner
A gas burner's sequence of operations, step by step: call, pre-purge, ignition, flame proving, run and post-purge — a field diagnostic method.
Air quality complaints: a field diagnostic approach
A structured way to diagnose an air quality complaint in a commercial building: CO, CO2, temperature, humidity and fresh-air supply.
Hydronic vs forced air: a commercial comparison
Hydronic or forced air for a commercial or institutional building? Comfort, cost and operating criteria to help you decide with confidence.
Condensate drains: maintenance and common pitfalls
Acidic condensate, clogged traps, frozen lines: a field-proven routine for maintaining condensate drainage on boilers and rooftop units in Montreal.
Cloud maintenance records: centralizing equipment history
Centralize your boiler-room maintenance history in the cloud: fewer surprise breakdowns, decisions backed by data, and Quebec Law 25 compliance.
Connected pressure gauges: reading measurements on mobile
Wireless pressure probes and mobile apps: role, reading, and interpretation traps for HVAC and combustion technicians in Greater Montreal.
Heat recovery: cutting the energy bill
How heat recovery on ventilation and boilers cuts the energy bill of a commercial building in Greater Montréal.
Carbon Monoxide Alarm: The Field Procedure
A CO alarm goes off in a boiler room. Here is the step-by-step procedure a technician should follow on a Greater Montréal gas installation.
Understanding boiler combustion efficiency
What every building manager should know about boiler combustion efficiency: O₂, flue gas temperature, condensing and the real levers to cut gas costs.
MERV ratings: choosing the right filtration
Understand the MERV scale to filter the air in your commercial buildings without choking the fan or inflating your energy bill.
Reading an HVAC Wiring Diagram: A Field Method
A step-by-step method for decoding HVAC wiring diagrams: schematic (ladder) vs. connection diagram, the 24V control circuit, and structured troubleshooting.
Quebec's 2026 RBQ gas code update: what changes
The RBQ updated the Gas chapters of the Construction and Safety Codes. Here is what changes for your gas-fired installations in Quebec.
Ultrasonic detector: testing steam traps and leaks
How to read an ultrasonic detector on steam, gas and compressed-air systems, and avoid the false positives that cost the most.
Controlling humidity through ventilation in commercial buildings
How ventilation controls humidity in commercial and institutional buildings: target ranges, winter condensation, and the levers that actually matter.
Heat pump subsidy for rental buildings: what changes
Quebec and Hydro-Québec will fund 55% of heat pump installations in pre-1995 rental buildings. What landlords and property managers need to know.
Boiler Room Pump & Circulator Maintenance Checklist
A field-tested method to inspect pumps and circulators—seals, bearings, alignment, performance—so they never fail mid-winter.
Boiler Robustness vs Efficiency in Industrial Sites
In corrosive industrial environments, the highest nominal efficiency is not always the best boiler choice.
Micromodulation and O2 Trim in the Boiler Room
What micromodulation and O2 trim can change in combustion stability and day-to-day operation.
When Dual-Energy Makes Sense for Building Heating
A decision framework for dual-energy in commercial and institutional buildings in Québec.
Modernize a Boiler Room Without Oversizing
How to sequence a boiler room project to avoid unnecessary capacity and costly technical compromises.
Steam Traps: The Hidden Losses in a Steam Network
How failed steam traps affect performance, reliability and operating costs.
Energy Efficiency Subsidies and Programs in Québec
General framework of incentive programs and project approach for commercial buildings — without unverifiable amounts or promises.
Preventive Boiler Maintenance: Reducing Breakdowns and Costs
Technical guide to preventive maintenance for hot water and steam boilers in commercial and industrial settings.
When Should You Replace a Commercial Boiler?
Technical and economic criteria for deciding whether to replace or extend the life of a boiler in a commercial or institutional building.
Water Treatment and Boiler Performance
How water chemistry, corrosion and deposits affect commercial boilers — without unrealistic performance claims.
Rooftop Units: Maintenance and Troubleshooting
Maintenance best practices for commercial RTUs and reading common faults to minimize unplanned downtime.
Commercial Air Conditioning Breakdown: Rapid Diagnosis
Triage method for rooftop units and central systems that have failed: common causes, alarm reading and preparing for technical intervention.
Natural Gas Burner Emergency: What to Do When It Fails
What to do in a commercial or industrial building when a burner alarm triggers or the flame becomes unstable — without taking unnecessary risks.
Ventilation and Indoor Air Quality in Commercial Buildings
Airflow, filtration and air renewal considerations for commercial and institutional buildings in Québec.
24/7 Emergency — Fast Response Across Grand Montréal
Boiler failure, equipment breakdown or heating emergency? Our technicians respond quickly.
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