Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 50 km. of postal code V1E 2Z7. Appointment required. Valid within 100 km. of postal code V1E 2Z7 for an additional $45 travel fee. Additional charges for high-efficient furnaces or furnaces with AC. Parts and additional services are not included. Package includes 1 furnace and 10 air vents. Additional vents are $9 per vent. Residential only, not valid for apartments or commercial cleaning. Offers can not be combined. GST and Environmental fees are not included. All vents must be cleaned. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Limit 4 per person. May be repurchased every 365 days. Limit 1 per visit. Limit 1 per household. Must use promotional value in 1 visit(s). Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings