Furnace and air conditioning service in Dundas

In Ontario, Regulation 212/01 under the Technical Standards and Safety Act sets out who may install, service and repair gas appliances, and installations follow the CSA B149.1 Natural Gas and Propane Installation Code. Work is performed by TSSA-certified gas technicians. A furnace worked on by anyone else can be unsafe and may lose its manufacturer warranty. See furnace repair.

Houses in the Shetland Street area usually had a standard-efficiency furnace venting into the chimney beside the gas water heater. A high-efficiency furnace vents through the side wall instead. That leaves the water heater alone in a chimney sized for two appliances. Its exhaust cools, condenses and may not draft properly. Look for rust or white crust around the water heater's draft hood, or water at the base of the chimney. Ask whether the chimney needs a liner, and read about furnace installation and replacement.

Often, yes, but not always through the existing ducts. The original ducts in older Caledonia houses north of the river were sized for heat, and they are often too small for central air. The oldest homes near Edinburgh Square have cramped ductwork added later. Forcing central air through small ducts gives noise and hot upstairs rooms. A ductless system puts indoor heads in the rooms that need them. Work is performed by 313A refrigeration and air conditioning mechanics. Note which rooms run hottest, then read about air conditioning installation.