MAXAIR High-Velocity Hydronic Air Handler
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The MAXAIR high-velocity air handler delivers boiler heat and central air through small 2½-inch ducts that fit inside your walls, which makes it a strong choice for older and finished homes without room for conventional ductwork. Hot water from your boiler runs through a copper coil and the blower pushes air through the FLEXAIR small-duct system. Made in Ontario by AirMax Technologies, it heats from 39,382 to 98,593 BTU/h (at 180°F water). Standard installation by Bison Air is included in every price.
- ✓ Standard installation included across Toronto & GTA
- ✓ Small 2½-inch ducts: minimal bulkheads
- ✓ Fits tight spaces: closet, attic or crawl space
- ✓ Cooling-coil ready: 1 to 3 tons, depending on model
- ✓ Financing available, with no upfront payment options
📏 Choose Your Model
| Model | Heating @ 180°F (BTU/h) | Airflow (CFM) | Cooling coil (tons) | 2½" outlets |
|---|---|---|---|---|
| MAX-30 | 39,382 | 350 | 1.0 | 7–11 |
| MAX-50 | 55,649 | 580 | 1.0–2.0 | 13–17 |
| MAX-70 | 77,981 | 750 | 2.0–2.5 | 16–20 |
| MAX-100 | 98,593 | 952 | 2.5–3.0 | 19–25 |
Airflow rated at 1.5 in. external static pressure. Want lower running costs and continuous circulation? See the MAXAIR high-velocity with ECM motor.
🔥 Heating Output by Water Temperature (BTU/h)
| Model | 180°F water | 160°F water | 140°F water | 130°F water |
|---|---|---|---|---|
| MAX-30 | 39,382 | 32,159 | 24,951 | 21,356 |
| MAX-50 | 55,649 | 44,700 | 35,195 | 30,250 |
| MAX-70 | 77,981 | 58,902 | 46,278 | 41,000 |
| MAX-100 | 98,593 | 80,666 | 62,741 | 53,500 |
💡 Sized for your real water temperature. Air handler output is published at 180°F water, but modern condensing boilers run most efficiently at lower temperatures. Output drops as water temperature drops (see the table above), so we size the air handler against your boiler's design water temperature and your home's heat loss, not the 180°F number.
🏠 Is High-Velocity Right for Your Home?
- ✓ Older homes, century homes and finished houses with no room for conventional ducts
- ✓ Homes heated by radiators or in-floor heat that want central air and ducted heat
- ✓ Additions and renovations where you want to keep walls and ceilings intact
- ✓ Homes with a boiler or combi boiler already in place
Have standard ductwork? A low-velocity unit is usually the better fit: see the MAXAIR LV with ECM.
✅ Key Features
- ✓ FLEXAIR 2½-inch insulated branch ducts fit inside a standard 2×4 wall, so there are few bulkheads or soffits
- ✓ Outlets in walls, ceilings or floors, each fully adjustable
- ✓ Compact: less than a third of the space of a conventional system (manufacturer); fits a laundry room, closet, attic or crawl space
- ✓ Multi-position: vertical or horizontal airflow, with four return-air location choices
- ✓ Optional DX cooling coil with self-adjusting TXV and freezestat for central air
- ✓ Copper heating coil with aluminum fins; coil and blower slide out for service
📋 Technical Specifications
| Model | Heating @ 180°F | CFM @ 1.5 in. | Motor | Amps (120 V) | Water flow (GPM) | Pipe | Cabinet L × W × H (in) | Supply / return (in) | 2½" outlets |
|---|---|---|---|---|---|---|---|---|---|
| MAX-30 | 39,382 | 350 | 1/3 HP | 4.6 | 5 | 1/2" | 30 × 14 × 18½ | 8" / 12 × 14 min. | 7–11 |
| MAX-50 | 55,649 | 580 | 1/2 HP | 6.2 | 5 | 1/2" | 30 × 14 × 18½ | 8" / 12 × 14 min. | 13–17 |
| MAX-70 | 77,981 | 750 | 3/4 HP | 8.7 | 7 | 1/2" | 36 × 19½ × 18 | 8" / 16 × 15 min. | 16–20 |
| MAX-100 | 98,593 | 952 | 3/4 HP | 8.7 | 8 | 3/4" | 36 × 25½ × 18 | 10" / 16 × 16 min. | 19–25 |
All models: 120 V, 1 ph. Source: MAXAIR submittal data sheets (see documents).
Documents: High-velocity brochure · Piping schematics (boiler + air handler) · MAX-30 data sheet · MAX-50 data sheet · MAX-70 data sheet · MAX-100 data sheet
🔧 What Standard Installation Includes
- ✓ Air handler set in place (vertical or horizontal, as the space requires)
- ✓ Connected to your existing boiler heating loop and ductwork near the unit
- ✓ FLEXAIR 2½-inch branch ducts and outlets, as quoted for your layout
- ✓ Electrical connection to an existing 120 V circuit
- ✓ Thermostat connected and tested
- ✓ Startup, air purge, water flow and airflow check
- ✓ 1-year labour warranty and warranty registration
Quoted as extras when needed: a new boiler or water heater, a circulator pump if your system does not already have one, new piping runs to the boiler, ductwork or plenum changes, an air conditioner and cooling coil, and electrical upgrades. We check your boiler, piping and ductwork before the job, and every extra is quoted in writing before work starts.
No built-in pump: MAXAIR air handlers use a separate circulator with check valve on the boiler loop. An air handler needs a boiler, combi boiler or other hot-water source; it does not make heat on its own. Need a boiler too? See boiler installation and combi boiler installation.
🛡️ Warranty
- ✓ Manufacturer: 1 year parts and labour, plus an additional 12 months on parts, where applicable (AirMax Technologies)
- ✓ Labour: 1 year from Bison Air, included
Manufacturer terms: using the air handler for temporary heat during construction voids the warranty, and a clogged or missing filter may void it. Replace or clean the filter regularly.
💰 Financing
Prefer monthly payments? HVAC financing through Financeit: pre-qualify in seconds without affecting your credit score.
🏆 Why Choose Bison Air
- ✓ MAXAIR equipment supplied and installed by Bison Air
- ✓ TSSA Certified HVAC Contractor
- ✓ Fully Licensed & Insured HVAC Technicians
- ✓ Standard Installation Included – No Hidden Fees
- ✓ Professional System Design & Equipment Selection
- ✓ Clean, Organized Installations
- ✓ 1-year labour warranty on every installation
- ✓ Serving Toronto, York Region, Peel Region, Barrie & all GTA Communities
- ✓ TSSA-certified gas technicians who also install and service boilers
🔗 Related
- ✓ Hydronic Air Handler Installation
- ✓ Boiler Installation Toronto
- ✓ Combi Boiler Installation
- ✓ Air Handler vs Furnace
- ✓ All Hydronic Air Handlers
- ✓ MAXAIR LV Low-Velocity, ECM
- ✓ MAXAIR LV Low-Velocity
- ✓ MAXAIR High-Velocity, ECM
- ✓ MAXAIR P2/P3 Zoned High-Velocity
📍 Areas We Serve
MAXAIR hydronic air handler installation throughout Toronto and the GTA:
Toronto · North York · Scarborough · Etobicoke · Vaughan · Markham · Richmond Hill · Aurora · Newmarket · East Gwillimbury · King City · Stouffville · Mississauga · Brampton · Oakville · Milton · Burlington · Barrie · Innisfil · Orillia · Bradford · Keswick · Ajax · Pickering · Whitby · Oshawa · Orangeville
🔥 Get Your Hydronic Air Handler Quote
Tell us about your boiler, your ductwork and the space you want to heat and cool. We will confirm the right model and give you a clear written price.
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