Below Zero Heating & Air Conditioning Ltd.

Welcome to Below Zero Heating & Air Conditioning Ltd.

We are a long-established Heating and Air Conditioning Contractor in Ottawa. Since 1999, Below Zero Heating and Air Conditioning has been serving the Heating & Cooling needs of clients in Ottawa, Kanata, Orleans and surrounding area’s for 15 years.

Whether new home construction, or just updating your current HVAC system in Ottawa, we have a high level of expertise which includes Certified HVAC System Design. Give us a call for a free evaluation and estimate on the Heating & Cooling options custom designed to fit to your home.

Air Conditioning

American Standard Gold SI Air ConditionersCentral Air Conditioners

The ideal Central Air Conditioning unit for your home will depend on a number of factors. Central Air Conditioners require a duct system and are an add on to a furnace or air handler.

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Ductless Mini-Split Air Conditioners & Heat Pumps

Ductless Mini-Split Air Conditioners in OttawaDuctless mini-split air conditioners & heat pumps are a great option for retrofit add-on to homes with “non-ducted” heating systems, such as hydronic (hot water heat), radiant heat, or baseboard electric heat.

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Unico Small Duct Central Heating & Air Conditioning System:

Unico Small Duct Hi-V HVAC System

The Unico Central Air Conditioning & Heating System uses ducts that are 1/4 the size of conventional heating systems. This makes it an ideal choice for Large Scale Custom Homes and Retrofit Applications, minimizing the space required in older homes as well as today’s modern Custom Home Designs.

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Portable Air Conditioner Units

Portable Air Conditioner OttawaA great alternative when you need air conditioning in different areas, or when a window air conditioner is not possible.

The Friedrich AireZone is practical and flexible: because the unit can move with you to any room, you get cooling exactly when and where you need it.

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Home Heating Systems

Gas / Propane Furnaces

Gas Furnace | Ottawa | Kanata | OrleansIn Ottawa, and most of Canada, Gas Furnaces  are the most economical home heating choice. Propane Furnaces are identical to Gas Furnaces, with minor adjustments to enable them to operate on a slightly different gas pressure.

Calculate how much you could save by converting to Natural Gas.

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Hot Water Boilers

Boiler Heating System | PipingBoilers are very common in the older parts of Ottawa. Most Boilers in Ottawa heat water in order to distribute heat throughout the home using radiators, or Radiant Heat provided by heating and entire surface. Hydronic Heating Systems can transfer 3500 time more heat per volume than air. These are ideal systems for Very Large Custom Homes.

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Heat Pumps

Heat Pump Installation | Ottawa | Kanata | OrleansHeat Pumps are basically Air Conditioners that can reverse, but there is more to it than that.  Heat Pumps of today can operate with high inefficiencies as low as -30C.

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Indoor Air Quality

Heat Recovery Ventilators HRV / ERV

HRV Air Exchnager Service Repair and Installation OttawaGood indoor air quality starts with eliminating the source of common indoor air quality problems like moisture which can lead to mold, mildew and other unhealthy contaminants. An HRV or ERV Air Exchanger eliminates contaminated air, while bringing fresh air into your home, but recovers up to 95% of the heat.

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HEPA Filters

HEPA Filter OttawaHEPA Filters and media furnace filters are used to eliminate particulate contaminants. HEPA Filters are rated to remove at least 99.97% of airborne particles 0.3 micrometer (Micron) 

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Furnace Filters

Furnace Filters OttawaMedia filters are rated by a Minimum Efficiency Reporting Value (MERV). The higher the MERV rating, the more efficient the filter.

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Air Purifiers

Lennox Healthy Climate PureAir PCO Air PurifierYour best solution for poor indoor air quality, the PureAir indoor air quality system uses UVA-light technology to attack the three main classes of indoor air contaminants

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