Don't Let Humidity Steal Your Summer! Solutions for a Cool and Comfortable Ottawa Home

Ottawa summers are known for their vibrant energy, bustling patios, and stunning sunsets. But let’s be honest – they can also be brutally hot and humid. This year, forecasters are predicting a scorcher, with potential heat waves lasting for weeks. While cranking up the AC might seem like the obvious solution, there’s another enemy lurking in the shadows – humidity. High humidity makes that hot air feel even more oppressive, leaving you feeling sticky and uncomfortable.

So, how can you create a cool and breathable haven in your home this summer? Here’s a comprehensive guide to tackling summer humidity, combining the best practices for optimizing your AC system with the strategic use of dehumidifiers.

Table of Contents

The Oppressive Duo: Understanding Heat and Humidity

Has your once whisper-quiet AC suddenly transformed into clanks, rattles, and hums? Don’t panic; you’re not alone. Noisy operations is a common complaint among homeowners, and it can stem from various sources within the AC system.

Tempurature and humidity displayed on a gauge with plants
  • Heat: Measured in degrees Celsius (°C) or Fahrenheit (°F), heat describes the thermal energy of a substance. The higher the temperature, the faster molecules move, creating a sensation of warmth.

    Humidity: Measured as a percentage (%), humidity refers to the amount of water vapor present in the air. Warm air can hold more moisture than cool air. When warm air reaches its saturation point, it condenses, leading to visible signs like fog or dew. This is why hot, humid days feel so sticky and muggy.

    The human body regulates its temperature through sweating. In dry environments, sweat easily evaporates, cooling us down. However, in high humidity, sweat has a harder time evaporating, making us feel hotter and hindering our body’s natural cooling mechanism.

Optimizing Your AC System: The First Line of Defense

Before the heat wave hits, ensure your AC unit is in top shape to combat both heat and humidity. Here’s a two-pronged approach:

Man in a green sweater fixing an air conditioning unit

1. Schedule a Pre-Season Check-Up:

  • Keeping your AC in tip-top shape will expand its lifecycle and keep your Ottawa home cool all year long. A routine maintenance check-up by a qualified Francis HVAC technician is crucial for optimal performance. During the check-up, the technician will assess common AC problems:

    • Inspect and clean air filters: Clogged filters restrict airflow, reducing efficiency and cooling capacity.
    • Check refrigerant levels: Low refrigerant can lead to reduced cooling and higher energy bills.
    • Inspect coils: Dirty coils can also reduce efficiency. The technician will clean them to ensure proper heat exchange.
    • Identify potential issues: Early detection of minor problems can prevent costly repairs later.

2. Consider an Upgrade if Necessary:

  • If your AC unit is nearing the end of its lifespan (generally 10-15 years for most models), it might be time for a replacement. A newer, energy-efficient model will:

    • Provide better cooling capacity, especially crucial in combating high humidity.
    • Use less energy, leading to lower electricity bills.
    • Offer advanced features like variable-speed operation for quieter and more consistent cooling.

    Need a check-up or an AC replacement? Check out our Ottawa Coolsavers program available until the end of summer to save up to $300 on a new AC system along with free AC tuneups now!

Dehumidifiers: Your Ally Against Sticky Air

Even a well-functioning AC might struggle in high humidity. That’s where dehumidifiers come in!

Woman hot due to humid air and no fan

These handy appliances work by removing excess moisture from the air, making it feel cooler and more comfortable without necessarily lowering the temperature. Some benefits of a dehumidifier this summer are:

  • Increased comfort: Lower humidity makes the air feel cooler, even at the same temperature.
  • Improved health: Reduced humidity can help alleviate allergies, asthma, and other respiratory problems.
  • Reduced mold growth: Mold thrives in moist environments. By lowering humidity, you create a less hospitable environment for mold spores.

According to the Environmental Protection Agency, ideal indoor relative humidity levels fall between 30% and 50%. When humidity exceeds 50%, the risk of mold growth increases, particularly in areas prone to moisture build-up like basements and bathrooms. Additionally, high humidity can heighten allergies and respiratory problems.

However, it’s important to note that dehumidifiers are not a replacement for AC units. They work best in conjunction with a properly functioning AC system, particularly in very hot and humid climates like Ottawa.

Choosing the Right Dehumidifier Size

Dehumidifiers come in various sizes and capacities, so choosing the right one for your space is crucial. Here’s a breakdown to help you make the best decision:

Apartment and Smaller Homes (up to 1,500 sq ft):

  • Capacity: Look for dehumidifiers with a capacity of around 20-30 pints per day (PPD)

Larger Homes and Basements (1,500 sq ft – 4,000 sq ft):

  • If you have a larger home or a particularly damp basement, opt for a more powerful dehumidifier (40-70 ppd). These units can handle larger spaces with higher humidity levels.

The exact size of the humidifier needed in a home changes depending on factors such as number of people living in the home, extra moisture, if there is a washer/dryer in the room and the climate you live in. When selecting a dehumidifier it is best to talk to a HVAC professional for all your cooling needs.

By combining a well-maintained AC system with a strategically placed dehumidifier, you can create a cool, comfortable, and healthy environment in your home all summer long. Contact our team at Francis Plumbing today to schedule an AC check-up or to discuss dehumidifier options for your specific needs!