Before finally breaking down, furnaces often give off signs letting the owners know that it won’t be long before they have to go shopping for new units. Here are 7 signs to warn you that your furnace is no longer in its best condition:

1. Your unit is on the latter half of its teenage years.
2. Your utility bills are increasing.
3. The unit has gone through a lot of repairs and part replacements
4. The temperature levels in the rooms are inconsistent.
5. The furnace flame is yellow.
6. Unusual noises are coming from the furnace.
7. The indoor air is very dry.