If you have an old furnace, you may notice that it runs worse and worse every year. At first, the differences may be subtle, and you may find yourself noticing small things like the machine running all the time. Didn’t it used to shut off every so often even on the coldest nights? Later, you may find that annoyances are cropping up. Relighting the pilot light is no longer a shocking rarity, but is now common. Your utility bills also seem a lot higher than they used to, even though the gas company insists that it didn’t increase the rates all that much. What’s going on?

What’s going on is that your furnace has reached its due retirement age. Even with good maintenance, all machines eventually wear out. The furnace is running all the time because it isn’t as efficient as it used to be. Its moving parts have worn, and its valve controllers aren’t as precise as they once were. That pilot light problem is a result of the valve controllers failing, too – a mechanical knob or lever just won’t stay in position like it ought to. All of these things are also behind that huge fuel bill.

While it’s possible to treat your furnace like a car and “drive it till it dies,” it’s better to get a replacement when you first notice it running all the time on cold nights. Constant running costs far more than cycled operation, and if a tune-up doesn’t bring your furnace back to good order, it’s time to get a new one. A new furnace from an installer like www.lairdandson.com will have the power and tight components needed to bring the house’s temperature up to the mark quickly so the machine has a chance to shut off in between cycles. It’ll also include modern technology, such as electronic ignition, so that there’ll be no more worries about having to light a pilot light even on the windiest of days. Best of all, the fuel bill you’ll get after the new furnace has been in place for a full month will be lower!

When Should You Get a New Furnace?