If your carbon monoxide alarm is going off when you turn on the furnace, that’s an indication that you may have a crack in your heat exchanger. Carbon monoxide is odorless and can cause health ...

Reader: "I personally think that the HVAC businesses have a great scam going by locking-out people's furnaces without any measurable evidence that the CO levels are above normal." ...

SALT LAKE CITY — A crack in a home furnace “heat exchanger” can be a serious problem, leaking toxic carbon monoxide in levels that can sicken or kill a family. When a crack is discovered ...

A Plumbline Services technician found a crack in the furnace heat exchanger and told Williams her furnace was unsafe. The heat exchanger vents the gasses that are produced from the furnace’s flame.

However, particularly in modern 80 percent and 90 percent forced air furnaces, a thorough visual inspection ... and a pressure sensor or draft gauge is inserted inside the heat exchanger to see if a ...

In many cases, cracks in a heat exchanger are within the dark recesses of a furnace and are not visible to a home inspector. Sometimes there are symptoms that can alert a home inspector to ...

and for oil furnaces it’s a good idea to schedule a tuning every year. I highly recommend that you request an HVAC technician to inspect the heat exchanger for cracks, holes, or leaks as my inspection ...