Sudden High Energy Bills in Cheney, WA

Cheney's winters are real. Temperatures regularly drop into the teens and single digits, and your furnace runs long cycles to keep up. That sustained demand is exactly the environment where small mechanical problems become big efficiency problems.

Here are the most common root causes we find:

Dirty or Restricted Air Filter This is the most common cause - and the most overlooked. A clogged filter forces the blower motor to work harder to pull air through the system. The furnace runs longer cycles to hit the thermostat setpoint, and your bill climbs. A filter that should be changed every 1–3 months can become a significant efficiency drain if it's been in place for six.

Degraded Heat Exchanger The heat exchanger is the metal component that separates combustion gases from the air circulating through your home. Over time - especially in furnaces that have been running for 15 or more years - the metal can develop micro-cracks or fatigue. When that happens, the furnace loses thermal efficiency: it burns more fuel to produce the same amount of heat. A cracked heat exchanger is also a CO risk and needs to be evaluated by a technician.

Blower Motor Wear The blower motor moves conditioned air through your ductwork. As it ages, it draws more electrical current to maintain the same airflow - especially if the bearings are worn or the motor windings are degrading. You won't always hear this. But your electric meter will see it.

Duct Leakage Leaky ductwork is a silent efficiency killer. If conditioned air is escaping into your attic, crawlspace, or wall cavities before it reaches your living areas, your furnace compensates by running longer. In older Cheney homes - particularly those built during the growth periods around Eastern Washington University and the surrounding neighborhoods - ductwork was often installed quickly and without a lot of attention to sealing.

Failing Ignition or Flame Sensor A furnace that misfires, short-cycles (turns on and off rapidly), or takes multiple attempts to light is burning fuel inefficiently. A worn igniter or a dirty flame sensor can cause exactly this pattern. The furnace lights, the sensor doesn't confirm the flame reliably, the system shuts down and tries again. Each failed cycle wastes gas and adds wear.

Thermostat Calibration or Wiring Issues A thermostat that's reading the room temperature inaccurately will call for heat more often than needed. This is easy to miss because the house still feels comfortable - the thermostat is just working harder than it should to get there.

Aging "Builder-Grade" Equipment Cheney has seen steady residential growth over the past two decades, and a significant portion of the housing stock includes homes built 12–18 years ago with builder-grade HVAC equipment. Those units are now at or near the end of their designed service life. Efficiency ratings drop as components wear, and a furnace that was rated at 80% AFUE (annual fuel utilization efficiency) when new may be operating at 65–70% today. That gap shows up directly on your bill.

Before you call, run through these checks. Some of them take two minutes and might solve the problem immediately.

• Check your air filter. Pull it out and hold it up to a light source. If you can't see light through it, replace it. A 1-inch filter should be changed every 30–60 days during heavy use; a 4-inch media filter every 6–12 months.
• Check your thermostat settings. Make sure it's set to "heat" and "auto" (not "on," which runs the fan continuously). Verify the setpoint is what you actually want.
• Check your vents and registers. Walk through the house and confirm that supply and return vents are open and unobstructed. Furniture, rugs, and drapes can block airflow without you noticing.
• Check your utility bill history. Pull up last year's bills for the same months. If the spike is consistent with a rate increase from your utility provider, that's a different problem. If your usage (in therms or kWh) has gone up, the issue is mechanical.
• Listen to your furnace. Does it start and stop frequently? Does it take a long time to light? Do you hear unusual sounds - grinding, rattling, or a high-pitched whine? Note what you observe before calling.