FAQs


Frequently Asked Questions
Direct Air Systems sells, installs, and services Lennox and Mitsubishi HVAC systems plus premium fireplaces, offering local showroom consultations, certified installations, and ongoing maintenance across Bolton, Markham and the GTA.
How long does furnace installation take?
A standard furnace replacement is typically completed in 4–6 hours by our certified technicians.
Do you offer Lennox rebates in Ontario?
Yes. Enbridge Gas and various government programs offer rebates for high-efficiency gas furnace upgrades. Contact us for current amounts.
How much does gas fireplace installation cost in the GTA?
Total cost typically ranges from $4,500 to $12,000+ depending on the model, venting complexity, and finishing work required.
What is a direct vent gas fireplace?
A direct vent fireplace uses a sealed combustion system that draws combustion air from outside — highly efficient and safe for any room.
Is a heat pump efficient enough for a GTA winter?
Modern variable-capacity heat pumps operate efficiently well below freezing. Most GTA homeowners pair them with a gas furnace for the coldest days.
Do you service all GTA cities?
Yes — we serve Toronto, Markham, Vaughan, Brampton, Mississauga, Bolton, Richmond Hill, Newmarket, and surrounding GTA communities.
What warranty do your installations come with?
All installations include the full manufacturer warranty on equipment plus our installation workmanship guarantee.
What is WETT certification?
WETT inspections certify that wood-burning appliance installations meet safety standards. Required by most Ontario municipalities and insurance companies.