How long do furnaces usually last?

15 to 20 years
THE AVERAGE FURNACE LIFESPAN A well-maintained furnace can last at least 15 to 20 years, but completing annual maintenance and being diligent with repairs can extend its life even longer.

How do you know if your furnace is dying?

Signs may be frequent headaches, a burning feeling in nose or eyes, nausea, disorientation, flu-like symptoms. If you experience any of these symptoms, air out your house, open a window to the furnace room and immediately call a gas service technician.

How much does it cost to replace furnace and air conditioner?

1 Furnace and air conditioner prices: A new furnace and AC combo unit will cost around $1,900 for a 1,000-square-foot home up to $5,600 for a 3,000-square-foot home. 2 Installation costs: HVAC installation costs start at $3,500 and can go as high as about $5,000. 3 New vs.

How much does it cost to install a new HVAC system?

This price is just for the heating and cooling system without installation costs, making it cheaper than the average cost of replacing your furnace and air conditioner separately. Installation costs: HVAC installation costs start at $3,500 and can go as high as about $5,000.

How much does a furnace and a/C combo cost?

How much does a furnace and A/C combo cost? 1 Furnace and air conditioner prices: A new furnace and AC combo unit will cost around $1,900 for a 1,000-square-foot home up to $5,600 for a 3,000-square-foot home. 2 Installation costs: HVAC installation costs start at $3,500 and can go as high as about $5,000. 3 New vs.

How much does it cost to replace air ducts in house?

Cost for new furnace and ductwork. Installing a new furnace and ductwork costs $6,000 to $12,000 on average. Air duct replacement alone costs $4,000 to $6,500 on average. Extra charges may include: Air duct cleaning costs $350 to $1,000 on average or $30 to $40 per duct. Duct repair costs $200 to $700 on average.