Furnace Installation and Replacement
A furnace replacement is a good moment to reconsider fuel type, sizing and how well your ductwork actually distributes heat, not just swap in the same model. Chauffage Climatisation Gatineau installs natural gas, propane and electric furnaces for homes across Gatineau, Hull and Aylmer.

Choosing a fuel type
Natural gas is available in parts of Gatineau and Hull and generally offers straightforward, lower-cost operation where the line already exists. Propane suits homes without gas service but requires on-site storage and delivery arrangements. Electric furnaces avoid combustion and venting entirely but depend on your electrical service having enough capacity. We go through the practical implications of each rather than assuming one is automatically better.
- Natural gas furnaces where a line is already run
- Propane furnaces with tank placement and delivery access
- Electric furnaces with panel capacity review
- Heat pump compatibility for future dual-fuel setups
Venting and combustion safety
Gas and propane furnaces need proper venting, whether through a chimney liner or direct-vent piping, and combustion air supply matters for safe, efficient operation. Older homes converted from oil or original gas systems sometimes have venting that was adequate for the old equipment but not sized correctly for a new, more efficient furnace. We check this as part of any installation, not as an afterthought.
Sizing and ductwork condition
A furnace that's too large short-cycles, wastes fuel and wears out components faster; one that's too small runs constantly and still struggles on the coldest days. We size based on a heat loss calculation for your actual home, and check that your ductwork's supply and return capacity can support the airflow the new furnace is rated for.
How it works
- 01
Home and fuel assessment
We review your current furnace, fuel access, venting and ductwork to identify what the new installation needs to account for.
- 02
Sizing and equipment selection
Based on a heat loss calculation, we recommend furnace capacity and options, including compatibility with a future heat pump if you're interested.
- 03
Installation and startup
The new furnace is installed, vented and connected, then tested for proper operation, airflow and safety before we walk you through it.
Frequently asked questions
Can I switch fuel types when replacing my furnace?
Yes, though switching to natural gas requires an existing or new gas line, and switching to propane requires tank installation and delivery access. We review what's practical for your property before recommending a change.
How do I know what size furnace I need?
Sizing should come from a heat loss calculation based on your home's insulation, windows and layout, not simply matching the capacity of the furnace being replaced, especially if your home has since been renovated.
Does my venting need to change with a new furnace?
It can. More efficient furnaces often vent differently than older models, and we check whether your existing venting is appropriate before installation rather than assuming it can be reused as-is.
Can a new furnace work alongside a heat pump later?
Yes, many furnaces can be set up for dual-fuel operation with a heat pump, either now or as a future addition, and we can plan for this during installation if you're considering it.
How long does a furnace installation take?
It depends on the scope, including whether venting, ductwork or electrical changes are needed. A technician can give you a clearer timeline once your home has been assessed.
Related services
- HeatingHeating system installation and replacement.
- Central heat pumpsA heat pump connected to your existing ductwork.
- Furnace repairA furnace that won’t start or keeps locking out.
- Heating repairHeating failures: diagnosis and repair.
- Heat pump costWhat makes the bill vary from one project to the next.
A project, a question or a breakdown?
Send us the details or call us. We assess the situation with you before proposing anything.
Call us 24/7 — Our phone line is open at all times. Technician availability is confirmed during the call.