Unit Heaters

Unit Heaters – Electric, Gas & Hydronic Heating Solutions

Unit heaters are self-contained heating systems that deliver powerful, targeted warmth without requiring extensive ductwork. Perfect for warehouses, garages, workshops, and industrial facilities, these versatile heaters combine heating elements with fans to circulate warm air efficiently throughout large spaces.

What Are Unit Heaters?

Unit heaters are compact, standalone heating systems designed to heat specific areas directly. Unlike central heating systems, these heaters mount on walls or ceilings and deliver immediate warmth where you need it most. They're ideal for spaces with high ceilings, frequent door openings, or areas that need occasional heating.

Types of Unit Heaters Available

Electric Unit Heaters

Best for: Garages, workshops, and areas without gas lines

Clean operation with no emissions
Simple installation - just mount and plug in
Instant heat with precise temperature control
Lower upfront costs but higher operating costs

Gas-Fired Unit Heaters

Best for: Large warehouses and industrial facilities

More cost-effective for continuous operation
Higher heat output for big spaces
Requires proper ventilation and gas connections
Lower long-term operating costs

Hydronic Unit Heaters

Best for: Buildings with existing boiler systems

Uses hot water from central boilers
Efficient heat distribution
Quiet operation
Ideal for multi-zone heating

Top Unit Heater Models Available

King Electric is a leader in durable, high-performance heating solutions. At Cleanflow, we carry a wide range of their top models, all designed to withstand the toughest conditions.

King Electric KB ECO2S Two-Stage Unit Heater

This smart heater is perfect for energy-conscious users. Its ECO2S technology automatically shifts between two heating stages, using the lowest wattage needed to maintain comfort.

Great for: Large garages, commercial shops, and warehouses.
Features: Remote control, programmable timer, and a 5-year warranty.

Explore the King Electric KB ECO2S for intelligent, efficient heating.

King Electric GH Compact Heavy-Duty Unit Heater

Built for rugged environments, the GH series delivers powerful, reliable heat in a compact frame. It's a go-to for demanding industrial and commercial jobs.

Great for: Workshops, barns, and storage areas.
Features: Built-in thermostat, durable steel fin heat exchanger, and a 3-year warranty.

Check out the King Electric GH Compact Heater for tough, dependable performance.

King Electric KB ECO2S+ Smart Unit Heater

Take smart heating to the next level. The ECO2S+ adds a remote temperature sensor and is compatible with WiFi thermostats like Nest for ultimate control.

Great for: Premium workshops and spaces with temperature variations.
Features: Remote sensor for precise heating, WiFi compatibility, and a 5-year warranty.

Discover the King Electric KB ECO2S+ for superior control.

King Electric EKB Garage Heaters

The EKB series offers an affordable, high-capacity heating solution without sacrificing quality. It’s a popular choice for residential garages and small workshops.

Great for: Home garages, workshops, and budget-conscious projects.
Features: Rapid heat transfer, built-in thermostat, and patented Smart Limit Protection®.

Learn more about the reliable and economical King Electric EKB Garage Heaters.

King Electric KBP Compact Unit Heater

With its Pic-A-Watt® technology, the KBP allows you to select the exact wattage you need during installation, making it one of the most versatile small unit heaters on the market.

Great for: Custom retrofits, greenhouses, and shops with specific heating needs.
Features: Field-adjustable wattage, 3-position switch (Heat/Fan/Off), and a 5-year warranty.

See how the King Electric KBP Compact Heater can be tailored to your space.

Small Unit Heaters for Tight Spaces

For smaller applications, our compact unit heaters deliver the same reliable performance in a space-saving design. These small unit heaters are perfect for:

Single-car garages
Tool sheds and workshops
Small commercial spaces
Supplemental heating zones

Garage Unit Heaters - Keep Working All Winter

Don't let cold weather stop your projects. Our garage unit heaters provide dependable warmth for:

Automotive repair and maintenance
Woodworking and hobby projects
Storage areas and workshops
Home gyms and recreational spaces

Key Industries Using Unit Heaters

Garages & Workshops - Keep work areas comfortable for mechanics, hobbyists, and repair shops needing reliable heat during cold weather.

Warehouses & Industrial Facilities - Heat large spaces with high ceilings where traditional HVAC systems would be inefficient or costly.

Commercial Buildings - Provide targeted heating for loading docks, stockrooms, and maintenance areas.

Construction Sites - Offer temporary heating for enclosed workspaces and job site offices.

Agriculture & Greenhouses - Protect plants, livestock, and equipment from freezing temperatures.

Institutional Applications - Heat gyms, workshops, and service areas in schools and municipal buildings.

Benefits of Unit Heaters

✓ Cost-Effective Installation - No ductwork required means lower upfront costs and faster installation
✓ Flexible Placement - Wall or ceiling mounting options to maximize floor space
✓ Zone Heating Control - Heat only the areas you need, when you need it
✓ Quick Temperature Recovery - Rapid heat-up after doors open or during cold starts
✓ Enhanced Safety - Electric models eliminate combustion risks in sensitive environments
✓ Energy Efficient Options - Modern models feature variable-speed fans and smart controls

How to Choose the Right Unit Heater Size

Step 1: Calculate your space volume (Length × Width × Height)

Step 2: Consider insulation quality:

Good insulation: multiply by 4
Average insulation: multiply by 5
Poor insulation: multiply by 7

Step 3: Account for special conditions:

Frequent door openings
High ceilings
Outdoor exposure

Example: A 30' × 30' × 10' garage (9,000 cubic feet) with average insulation needs approximately 45,000 BTU/hr.

👉 Save time and avoid manual calculations by using our free BTU calculator tool. Quickly find the ideal heater size for your space here: Cleanflow BTU Calculator

Installation Considerations

Mounting Height - Install at least 6 feet from the floor with proper clearances from combustible materials

Power Supply - Ensure adequate electrical capacity with dedicated circuits for electric models

Ventilation - Gas-fired units require proper venting and a fresh air supply

Thermostat Location - Position away from drafts and direct sunlight for accurate temperature control

Professional Installation & Safety

Electrical Requirements - All electric unit heaters require proper electrical connections by qualified technicians

Gas Line Installation - Gas-fired models need professional gas line installation and venting
Safety Certifications - Look for CSA/UL certified products for Canadian installations

Regular Maintenance - Annual inspections ensure safe, efficient operation

Shop Unit Heaters with Cleanflow

Free Shipping on Orders Over $199 - Get your unit heater delivered fast across Canada
Expert Support - Call our heating specialists toll-free at 1-866-335-1078 for sizing and selection help
CSA Certified Products - All our unit heaters meet Canadian safety standards
Volume Discounts Available - Save more when you buy multiple units for larger projects

Browse All King Electric Products - Explore our complete selection of electric heating solutions

Frequently Asked Questions

Can I use a unit heater in a residential garage without ductwork?

Yes, unit heaters are self-contained and don't require ductwork. They mount easily to walls or ceilings and provide direct heating.

What's the difference between a unit heater and a space heater?

Unit heaters are mounted permanently and designed for larger spaces with powerful blowers. Space heaters are portable and better for smaller, enclosed rooms.

Do electric unit heaters require ventilation?

No, electric unit heaters don't produce combustion gases and don't require ventilation, making them easier to install in enclosed spaces.

How do I determine the correct size unit heater for my space?

Calculate your space's cubic footage and multiply by an insulation factor (4-7). Professional sizing ensures optimal performance without waste.