What Temperature To Keep House In Summer

Summer is here, and that means one thing for most homeowners: running the air conditioner! But finding the right balance between comfort and energy savings can be tricky. Determining what temperature to keep your house in summer isn't a one-size-fits-all answer. Several factors influence the ideal setting, and this guide will help you navigate them all.

Understanding the Factors Affecting Your Ideal Summer Temperature

Before we dive into specific numbers, let’s consider the elements that impact your comfort and energy bills:

Personal Preference: This is the most significant factor. Are you comfortable in a slightly warmer environment, or do you prefer a cooler, more refreshing feel?
Activity Level: If you're active and moving around, you might prefer a cooler temperature than if you're mostly sedentary.
Home Design and Insulation: Older homes with poor insulation will struggle to maintain a consistent temperature, requiring you to set the thermostat lower. Newer, well-insulated homes are more energy-efficient.
Regional Climate: Hot and humid climates require lower thermostat settings to achieve comfortable humidity levels. Drier climates may allow for slightly warmer temperatures.
Occupancy: Are you home all day, or is the house empty for several hours? Adjusting the thermostat when you're away can save significant energy.
Health Considerations: Individuals with certain health conditions, such as respiratory issues or sensitivities to temperature changes, may require specific temperature settings.

The Recommended Temperature Range

While personal preference reigns supreme, energy experts and HVAC professionals generally recommend a temperature range of 75-78°F (24-26°C) when you’re home during the summer. This range balances comfort with energy efficiency. When you're away, increasing the temperature to 80-85°F (27-29°C) can result in substantial savings without causing issues when you return and cool the house down.

Why 78°F?

The U.S. Department of Energy recommends 78°F as the optimal temperature for energy savings and comfort when you're home. This setting reduces the strain on your air conditioner, lowering energy consumption and utility bills. It's a good starting point, and you can adjust it slightly to find your personal sweet spot.

Programming Your Thermostat for Maximum Savings

A programmable or smart thermostat is your best friend for energy efficiency. Here's how to use it effectively:

Create a Schedule: Set different temperatures for when you're home, asleep, or away.
Utilize "Away" Mode: Most thermostats have an "away" mode that automatically adjusts the temperature when you're not home.
Smart Thermostat Features: Smart thermostats learn your habits and automatically adjust the temperature based on your preferences and occupancy. Many can be controlled remotely via a smartphone app.

Example Thermostat Schedule:

This is just an example, adjust it to fit your lifestyle:

7:00 AM (Wake Up): 75°F
8:00 AM (Leave for Work): 82°F
5:00 PM (Return Home): 75°F
10:00 PM (Bedtime): 72°F

DIY Tips for Improving Energy Efficiency

Beyond thermostat settings, several other measures can help you save energy and stay comfortable:

Seal Air Leaks: Caulk around windows and doors, and use weather stripping to seal gaps.
Insulate Properly: Ensure your attic and walls are adequately insulated.
Use Fans: Ceiling fans and portable fans circulate air, making you feel cooler even at a higher thermostat setting. Remember that fans cool people, not rooms, so turn them off when you leave.
Close Blinds and Curtains: During the hottest part of the day, close blinds and curtains to block sunlight.
Avoid Using Heat-Generating Appliances: Limit the use of ovens and dryers during the hottest hours.
Regular HVAC Maintenance: Change your air filter regularly (every 1-3 months) to ensure proper airflow and efficiency.

Troubleshooting Common HVAC Issues

Sometimes, even with the right thermostat settings, your air conditioner may struggle to keep up. Here are some common problems and potential solutions:

Problem: AC not cooling properly.

Possible Causes: Dirty air filter, blocked condenser unit, low refrigerant, duct leaks.
DIY Solutions: Replace air filter, clean condenser unit (remove debris), check for obvious duct leaks.
When to Call a Professional: Suspect refrigerant leak, major ductwork repairs needed.

Problem: Uneven cooling throughout the house.

Possible Causes: Closed vents, blocked vents, duct leaks, improper insulation.
DIY Solutions: Open all vents, ensure vents are not blocked by furniture, check for obvious duct leaks.
When to Call a Professional: Extensive ductwork issues, insulation assessment needed.

Problem: AC running constantly.

Possible Causes: Thermostat set too low, inadequate insulation, air leaks, undersized AC unit.
DIY Solutions: Check thermostat settings, seal air leaks, improve insulation.
When to Call a Professional: Assess AC unit size, diagnose potential mechanical issues.

Safety First!

Before attempting any DIY repairs, always turn off the power to your AC unit at the breaker box. If you are uncomfortable working with electricity or have any doubts about your abilities, it's best to call a qualified HVAC technician.

When to Call a Professional HVAC Technician

While some issues can be addressed with DIY solutions, others require the expertise of a qualified HVAC technician. It’s time to call a pro when:

Refrigerant Leaks: Refrigerant is a hazardous substance, and leaks must be handled by a licensed technician.
Electrical Issues: Electrical problems within the AC unit can be dangerous and require professional diagnosis and repair.
Compressor Problems: The compressor is the heart of your AC unit, and repairs are complex and require specialized knowledge.
Ductwork Repairs: Extensive ductwork repairs often require specialized tools and expertise.
You're Unsure: If you're not comfortable or confident in your ability to diagnose or repair a problem, it's always best to err on the side of caution and call a professional.

Estimated Repair Costs

Here's a general idea of potential repair costs. These are estimates and can vary depending on your location, the complexity of the repair, and the HVAC company you choose:

Air Filter Replacement: $10 - $30 (DIY)
Condenser Cleaning: $75 - $150
Refrigerant Recharge: $150 - $500 (depending on the amount of refrigerant needed)
Duct Sealing: $300 - $800
Compressor Replacement: $1,500 - $3,500
New AC Unit Installation: $3,000 - $7,000+ (depending on size and efficiency)

Always get multiple quotes from reputable HVAC companies before committing to any major repairs or replacements.

Long-Term HVAC Health

Maintaining your HVAC system is essential for its longevity and efficiency. Here are some long-term tips:

Annual Maintenance: Schedule an annual maintenance appointment with an HVAC technician to inspect and tune up your system.
Regular Cleaning: Keep the area around your outdoor condenser unit clear of debris.
Consider a Service Agreement: Many HVAC companies offer service agreements that include regular maintenance and discounts on repairs.

Conclusion

Finding the best temperature to keep your house in the summer involves balancing comfort, energy savings, and your individual needs. By understanding the factors that influence your ideal temperature and implementing energy-saving strategies, you can stay cool and comfortable all summer long without breaking the bank. Remember to prioritize safety when attempting DIY repairs and don't hesitate to call a professional when needed. With proper care and maintenance, your HVAC system will keep you comfortable for years to come.