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Generators

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Find the perfect generator for your energy needs, whether for the job site, home, or outdoor activities. Reliability and performance guaranteed!
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Complete Guide to Choosing Your Professional Portable Generator

What size generator should you choose for your power needs?

The required generator power depends on the sum of the watts of all simultaneously operating appliances and tools plus a safety margin of 20 to 30%. 2000 to 3000W generators are suitable for light needs such as lighting, tool chargers, and refrigerators consuming 1500 to 2500W combined.

Prices range from $400 to $1200 for maximum portability, weighing 20 to 40 kg with a 6 to 12-hour run time. 4000 to 7000W generators dominate professional applications, powering drills, circular saws, compressors, and multiple pieces of equipment consuming 3000 to 6000W. Sufficient power for light welding, pumps, and temporary heating systems.

An investment of $1200 to $3500 is justified by versatility covering 80% of job site needs. Run time of 8 to 16 hours with 15 to 30-liter tanks. 8000 to 15,000W generators serve heavy industrial applications including high-intensity welding, air conditioning, machine tools, and three-phase systems requiring 7000 to 12,000W.

Robust construction with diesel engines for continuous use of 20 to 40 hours. Prices range from $4000 to $6999 for reliability in intensive production. Calculate total load: add watts of all appliances, multiply by 1.3 for margin, select the next higher generator.

Polar Industrial Equipment advises oversizing by 25% to avoid overloading, which compromises lifespan.

Inverter vs. standard generator: understanding the essential technologies

Standard generators produce electricity with variable voltage and frequency depending on loads, with a total harmonic distortion (THD) of 5 to 10%, which is acceptable for robust tools but risky for sensitive electronics. Engines run at a constant speed of 3600 RPM, generating noise from 65 to 75 dB.

Prices range from $400 to $2500 for powers from 2000 to 10,000W. Durability is 5 to 10 years with regular use and proper maintenance. Inverter generators convert alternating current to direct current then re-convert to ultra-stable alternating current with THD below 3%, protecting computers, phones, and delicate electronic equipment. Variable speed from 1000 to 3600 RPM depending on the load reduces fuel consumption by 30 to 40% and noise by 50 to 60 dB, allowing for nocturnal residential use.

Higher prices from $800 to $4000 are justified by efficiency and quiet operation. Parallel inverter generators allow the connection of two units, doubling the available power from 2000W to 4000W for maximum flexibility. Moderate initial investment evolves with growing needs. For robust tools and noisy construction sites, standard generators are sufficient. For residential use, electronics, or when silence is required, inverters are essential.

Polar Industrial Equipment recommends evaluating the sensitivity of powered equipment and environmental acoustic constraints.

Technologies and brands: Honda, DeWalt, and Generac

Honda develops inverter generators from 2000 to 7000W, known for their exceptional reliability and quiet operation (48 to 60 dB) thanks to multi-layer acoustic insulation and optimized exhaust. GX overhead valve engines offer a lifespan of 10,000 to 20,000 hours with minimal maintenance.

Eco-Throttle technology adjusts engine speed based on load, reducing fuel consumption by 40% and extending runtime to 18 hours on 3.6 liters. Prices range from $1200 to $3500, reflecting Japanese manufacturing quality.
DeWalt offers robust generators from 4000 to 8000W, designed for construction sites with a tubular steel frame resistant to shocks and transport vibrations.

Electric start with a 12V battery facilitates starting in temperatures down to -20°C, typical of Quebec winters. Integrated GFCI lockable outlets protect against electric shock in damp environments. Prices range from $1500 to $4500 for robust construction supporting daily professional use.

Generac manufactures residential and commercial generators from 3000 to 15,000W, including three-phase models for industrial machinery. Automatic transfer systems switch over in less than 10 seconds during power outages. Air-cooled OHV engines with maintenance-free brushless alternators require oil changes only every 200 hours. Prices range from $2000 to $6999 for permanent and mobile installations.

Polar Industrial Equipment stocks replacement parts and filters for all major brands.

Professional applications: construction, residential, and event management

Construction contractors require 5000 to 8000W generators to power circular saws, drills, compressors, and lighting simultaneously on job sites without electrical access. Sufficient power for 3 to 5 tools operating in parallel during 8 to 10-hour workdays.

Pneumatic wheels and handles facilitate movement between work zones. 10 to 16 hours of autonomy with 20 to 30-liter tanks eliminate frequent refueling interruptions to productivity.

Residential owners use 3000 to 7000W generators for backup power during outages, powering essential refrigerators, freezers, sump pumps, heating, and lighting.

Silent inverter models of 55 to 65 dB are acceptable in residential areas without disturbing neighbors. Automatic transfer switches allow seamless switching in less than 10 seconds, preserving food and comfort during frequent winter storms in Quebec.

Event organizers require silent generators of 4000 to 10,000W for outdoor audio systems, stage lighting, and catering equipment. Voltage stability protects costly equipment against fluctuations. Wheeled models facilitate discreet positioning 20 to 30 meters from public areas, minimizing noise pollution. Extended autonomy of 12 to 20 hours covers entire events without refueling.

Polar Industrial Equipment provides complete solutions, including cords, switches, and accessories for specific applications.

Maintenance and Safety: Maximizing Lifespan and Safe Use

Regular maintenance of portable generators extends their lifespan and maintains optimal performance. Change engine oil every 50 to 100 hours or annually, whichever comes first, using 10W-30 synthetic oils suitable for Quebec temperatures from -30°C to +30°C. Replace air filters every 100 to 200 hours to eliminate dust that can impair carburetion. Clean or replace spark plugs every 200 hours to ensure reliable starting.

Stabilize fuel during winter storage for 3 to 6 months with additives to prevent oxidation and gum formation that can clog the carburetor. Drain the tank completely or run the engine until it runs out of fuel to avoid deposits during prolonged shutdowns. Store in dry, well-ventilated areas away from moisture to prevent corrosion.

Electric start batteries require quarterly recharging to maintain capacity. Use generators exclusively outdoors in well-ventilated areas 6 to 10 meters away from buildings to prevent deadly carbon monoxide accumulation.

Installation of CO detectors in adjacent buildings is mandatory in accordance with safety codes. Connect equipment directly via appropriate cords, avoiding connections to residential outlets that can cause dangerous backfeeding. Never refuel a hot engine, as flammable vapors pose a fire risk.

Polar Industrial Equipment offers technical training and safety advice for optimizing professional practices.
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We answer your questions about portable generators

Which generator is best suited to power construction site tools?

For a construction site with multiple tools operating simultaneously including circular saws (1500W), compressors (2000W), drills (800W), and lighting (500W), choose a 6000 to 8000W generator offering a 25% safety margin to prevent overload.

Recommended specifications:

• Power output: 6000–8000W for 3–5 tools running simultaneously

• Type: Standard gasoline for optimal cost-performance ratio

• Runtime: 10–16 hours with a 20–30 liter tank

• Mobility: Pneumatic wheels and ergonomic handles

Models with electric start simplify cold morning startups. Multiple 120V and 240V outlets allow simultaneous connection of various equipment. Brushless alternators require minimal maintenance.

Équipement Industriel Polar recommends DeWalt and Generac models for reliability in daily professional use.

Are inverter generators really necessary for electronic equipment?

Yes, inverter generators are strongly recommended for sensitive electronic equipment including computers, phones, audio systems, and electronic controllers.

Total harmonic distortion (THD) under 3% versus 5–10% for standard generators protects delicate components from surges and fluctuations that can damage circuits.

Critical inverter advantages:

• THD <3% protecting electronics versus 5–10% standard units

• Ultra-stable voltage ±1% versus ±5% standard units

• Protected applications: Computers, phones, medical systems, UPS units

• Bonus: 30–40% lower fuel consumption and quieter operation at 50–60 dB versus 65–75 dB

For robust tools such as saws, drills, and compressors that tolerate fluctuations, standard generators are sufficient, saving 30 to 50% of the cost.

For mobile offices, medical equipment, or modern homes with electronics, inverter models are essential to avoid costly damage. Televisions, WiFi routers, and security systems also require inverter-level stability.

Équipement Industriel Polar recommends evaluating the equipment to be powered for proper selection.

Yes, inverter generators are strongly recommended for sensitive electronic equipment including computers, phones, audio systems, and electronic controllers. Total harmonic distortion (THD) under 3% versus 5–10% for standard generators protects delicate components from surges and fluctuations that can damage circuits. Critical inverter advantages: • THD <3% protecting electronics versus 5–10% standard units • Ultra-stable voltage ±1% versus ±5% standard units • Protected applications: Computers, phones, medical systems, UPS units • Bonus: 30–40% lower fuel consumption and quieter operation at 50–60 dB versus 65–75 dB For robust tools such as saws, drills, and compressors that tolerate fluctuations, standard generators are sufficient, saving 30 to 50% of the cost. For mobile offices, medical equipment, or modern homes with electronics, inverter models are essential to avoid costly damage. Televisions, WiFi routers, and security systems also require inverter-level stability. Équipement Industriel Polar recommends evaluating the equipment to be powered for proper selection. Suggested link to: Batteries and chargers collection

The runtime of a 5000W generator varies from 8 to 16 hours depending on applied load and tank capacity. At 50% load (2500W), typical runtime is 12 to 16 hours with a 20 to 25 liter tank.

Factors affecting runtime:

• 25% load: 14–18 hours excellent efficiency

• 50% load: 10–14 hours recommended optimal use

• 75% load: 8–12 hours higher consumption

• 100% load: 6–10 hours maximum consumption

Inverter models with Eco-Throttle technology adjust engine speed according to load, extending runtime by 30 to 40%. A 15 liter tank provides 6 to 10 hours, while a 25 liter tank offers 10 to 16 hours.

Ambient temperature also affects performance: engines operating at -20°C consume 10 to 15% more fuel. Plan refueling based on actual runtime at 60–75% load for continuous productivity.

How often should I maintain my portable generator?

Change engine oil every 50 to 100 hours of use or annually, whichever comes first. Replace air filters every 100 to 200 hours depending on dusty environments.

Clean or replace spark plugs every 200 hours to maintain reliable starting and optimal combustion.

Professional maintenance schedule:

• After first 20 hours: Critical initial oil change

• Every 50–100 hours: Regular oil change

• Every 100–200 hours: Replace air filter

• Every 200 hours: Check/replace spark plugs

• Annually or before storage: Fuel stabilization and tank draining

Use synthetic 10W-30 oils suitable for temperatures ranging from -30°C to +30°C. Fuel stabilizers are essential during winter storage of 3 to 6 months to prevent oxidation. Electric start batteries require quarterly recharging.

Inspect oil level, filter condition, and bolt tightness monthly. Typical lifespan ranges from 5,000 to 20,000 hours depending on maintenance rigor.

What warranty do you offer on portable generators?

Portable generators are covered by a manufacturer warranty of 1 to 3 years depending on the brand, covering manufacturing and material defects.

Honda offers 3 years for residential use or 2 years for commercial use, DeWalt provides a 3-year parts and labor warranty, and Generac offers 2 to 5 years depending on the model.

Warranties exclude normal wear, consumables, and damage caused by improper maintenance.

Typical warranty coverage:

• Engines and alternators: 2–3 years for manufacturing defects

• Frame and components: 1–3 years depending on brand

• Exclusions: Oil, filters, spark plugs, damage due to negligence

• Équipement Industriel Polar policy: 30-day return on unused product

For warranty claims, keep proof of purchase and maintenance records demonstrating proper servicing. Documented oil changes and use of genuine parts are required. Damage caused by overload, contaminated fuel, or improper storage is excluded.

Free technical support is available at 1-800-567-3206 for advice on selection, proper installation, and maintenance practices to maximize reliability and operational lifespan.

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