HVAC in London, ON

A deeper look at how London conditions shape the hvac work owners actually need.

Gas furnace work in London is the highest stakes maintenance category for most residential and small commercial property owners because of the direct relationship between furnace condition, heating season timing, and carbon monoxide risk. The Ontario building stock's age means a significant share of London furnaces are mid efficiency units with atmospheric vent configurations that require proper flue draft to operate safely. A furnace with a cracked heat exchanger can pass combustion gas, including carbon monoxide, into the air distribution system while continuing to run and heat the home. TSSA requires that a cracked heat exchanger be taken out of service immediately. This is not a negotiating position; it is a safety and liability issue that Bridgepoint technicians document with photos and communicate clearly before any repair or replacement decision is made.

Furnace replacement in London most commonly involves upgrading from a mid efficiency atmospheric vent unit to a high efficiency condensing furnace. High efficiency units vent with PVC through a wall or a direct vent penetration rather than through a chimney, which resolves the flue draft dependency and typically reduces gas consumption by 15 to 30 percent over a mid efficiency unit. For London properties with older chimney flues in varying condition, the elimination of the chimney dependency is a meaningful reliability improvement.

TSSA requires a licensed technician to commission and inspect the new appliance, and a TSSA inspection certificate is provided at completion.

Heat pump adoption in London is growing as Ontario's climate policy and utility incentives make the economics more favourable. A cold climate air source heat pump operates efficiently down to approximately minus 20 to minus 25 degrees Celsius, which covers the vast majority of London winter days. Below those temperatures, the system falls back to a supplemental electric or gas source. In a London home that heats primarily with gas, a dual fuel system pairing a cold climate heat pump with an existing gas furnace as backup provides the lowest combined operating cost while meeting the London climate's heating demand fully. Installation requires electrical service capacity assessment (heat pump compressors add significant electrical load), TSSA review for gas integration, and Skilled Trades Ontario certified installation. All refrigerant handling meets Environment and Climate Change Canada requirements.