Heating & Cooling
Why the AC is icing over, why the furnace blows cold, what size unit a room needs, and which fixes are safe to try before you book a technician.
Air conditioners
-
Why Is My AC Freezing Up? Causes and Fixes
Ice on an air conditioner in July looks backwards, but it follows simple physics. Here is how to thaw the system without damaging it, and how to tell which of seven causes you are dealing with.
-
What Size Air Conditioner Do I Need? BTU by Room Size
Bigger is not better with air conditioners. A unit sized to the room cools evenly, removes humidity and costs less to run. Here is how to work out the right number in two minutes.
Furnaces
-
Why Is My Furnace Blowing Cold Air? 8 Causes and Fixes
Cold air from the vents in January is alarming, but the cause is often a switch or a filter. Work through these checks from the simplest to the most serious.
Other parts of the house
- Water & Plumbing Water heaters, toilets, faucets, drains, pressure and water quality.
- Kitchen Appliances Refrigerators, freezers, dishwashers, ovens, stoves and microwaves.
- Laundry Washing machines, dryers, detergents, cycles and care.
- Electricity & Energy Running costs, outlets, breakers, lighting and smoke and CO alarms.
- Air & Moisture Humidity, condensation, dehumidifiers, humidifiers and indoor air.