HVAC Learning Center
Discover everything you need to know about HVAC systems. Choose your preferred way to learn - self-guided, expert help, or instant AI answers.
Browse Knowledge Base
Explore our comprehensive FAQ section with detailed answers to common HVAC questions. Perfect for self-paced learning.
AI Assistant
Get instant answers 24/7 from our AI assistant. Ask any HVAC question and receive personalized guidance.
Start ChatTalk to Experts
Call us at (312) 315-5317 to speak with our HVAC specialists. Get personalized advice and answers to your specific questions.
Call NowKnowledge Base - Frequently Asked Questions
The right HVAC system size is crucial for efficiency and comfort. It's determined by several factors:
- Square footage of your home
- Number and size of windows
- Insulation quality and type
- Local climate and weather patterns
- Ceiling height and room layout
An undersized system won't cool or heat effectively, while an oversized one will cycle too frequently, wasting energy and potentially leading to humidity issues. Our instant quote tool helps us recommend the correct sizing based on the information you provide!
These acronyms represent the efficiency ratings of HVAC systems:
SEER
Seasonal Energy Efficiency Ratio
Used for: Air conditioners
Measures: Cooling efficiency over entire season
EER
Energy Efficiency Ratio
Used for: Air conditioners
Measures: Efficiency at 95°F
HSPF
Heating Seasonal Performance Factor
Used for: Heat pumps
Measures: Heating efficiency over season
Higher ratings = Lower energy bills + Smaller environmental footprint
Central Air Conditioning
Best for: Whole-house cooling with existing ductwork.
- Pros: Even cooling, quiet indoor operation.
- Cons: Higher upfront cost, requires ducts.
Ductless Mini-Split Systems
Best for: Homes without ductwork or for zoned cooling (e.g., additions, upstairs).
- Pros: Efficient, flexible zoning, easy installation.
- Cons: Indoor units are visible, may cost more per zone.
Heat Pumps
Best for: Mild or mixed climates (heating + cooling).
- Pros: Energy-efficient year-round, may qualify for rebates.
- Cons: Less effective in extremely cold regions (unless dual-fuel).
Summer Benefits:
- Keeps cool air inside
- Reduces AC workload
- Lower energy bills
Winter Benefits:
- Keeps warm air inside
- Reduces heating workload
- Prevents heat loss
Result: Your HVAC system works less, lasts longer, and costs less to operate!
Monthly Tasks:
- Check and replace air filters
- Clean around outdoor unit
- Check thermostat settings
Annual Professional Service:
- Clean evaporator and condenser coils
- Check refrigerant levels
- Inspect electrical components
- Lubricate moving parts
- Test system performance
High-Quality Filters
Use HEPA or high-MERV filters and change regularly
Humidity Control
Maintain 30-50% humidity for optimal comfort
UV Lights
Add UV purification to kill bacteria and mold
Typical Lifespan by System Type:
- Central Air Conditioner: 12-15 years
- Heat Pump: 10-15 years
- Furnace: 15-20 years
- Ductless Mini-Split: 12-15 years
Factors Affecting Lifespan:
- Regular maintenance
- Usage patterns
- Climate conditions
- Installation quality
- Brand and model
Smart Thermostat Benefits:
- ✓ Learn your schedule automatically
- ✓ Remote control via smartphone
- ✓ Energy usage insights
- ✓ Geofencing capabilities
- ✓ Integration with smart home
Potential Savings:
- 10-15% on heating costs
- 15-20% on cooling costs
- Better comfort control
- Reduced wear on system
Immediate Attention Needed:
- 🚨 Unusual noises (grinding, banging)
- 🚨 Weak or no airflow
- 🚨 System won't turn on/off
- 🚨 Burning smells
- 🚨 Water leaks
Consider Replacement:
- ⚠️ Rising energy bills
- ⚠️ Inconsistent temperatures
- ⚠️ Frequent repairs needed
- ⚠️ System over 15 years old
- ⚠️ Poor air quality
Thermostat Settings
- • Summer: 78°F when home
- • Winter: 68°F when home
- • Adjust 7-10° when away
- • Use programmable settings
Home Improvements
- • Seal air leaks
- • Improve insulation
- • Use ceiling fans
- • Close blinds in summer
System Maintenance
- • Regular filter changes
- • Annual professional service
- • Clean coils regularly
- • Upgrade to high-efficiency
SEER (Seasonal Energy Efficiency Ratio) and SEER2 are both ratings that measure the cooling efficiency of air conditioners and heat pumps, but they use different testing standards:
- SEER: The traditional standard, based on older testing procedures with lower external static pressure (less resistance to airflow).
- SEER2: Introduced in 2023, uses updated testing with higher static pressure to better reflect real-world conditions in modern homes.
Why it matters: SEER2 ratings are typically lower than SEER for the same equipment, but they provide a more accurate picture of actual efficiency. When comparing systems, make sure you’re looking at the same rating type!
BTU (British Thermal Unit) and Ton are both units used to describe the cooling or heating capacity of HVAC systems:
- BTU: The amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit. In HVAC, it measures how much heat an air conditioner or heater can remove or add per hour.
- Ton: A unit of cooling capacity. 1 Ton = 12,000 BTUs per hour. For example, a 2-ton AC can remove 24,000 BTUs of heat per hour.
Why it matters: The right BTU or tonnage ensures your system can keep your space comfortable without wasting energy or cycling too often.
Still Have Questions?
Our team is here to help you make the best HVAC decisions for your home.