Get a $0 Diagnostic check on your Furnace today*Offer expires March 31, 2023.View Terms and Conditions Get Deal Terms and Conditions: Get a $0 Diagnostic check on your Furnace today* *Offer expires March 31, 2023. We reserve the right to change or cancel this offer at any time without prior notice. Certain terms and conditions apply. You will save the standard $99 + HST diagnostic rate for heating and cooling equipment. Cost of repairs not included.