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How to Choose the Right Size Generator for Your Home

The right generator size depends on which appliances and systems you want to operate during a power outage. Consider whether you need backup power for selected essentials or want to support more of your home’s electrical needs. A professional assessment can help determine which generator is appropriate for your property and power requirements.

• List your priorities: Identify the appliances and systems you most want to keep running during an outage.
• Consider your household’s needs: Your preferred level of backup power will influence the generator you need.
• Discuss sizing before choosing a model: Comfort Air offers a free in-home assessment to help evaluate your generator options.

Air-Cooled vs. Liquid-Cooled: Which Model is Right for Your Home?

Air-cooled and liquid-cooled generators are options to consider when choosing a home backup generator. The right choice depends on your household’s power requirements and the options suitable for your property. Discuss your needs during an in-home assessment before choosing a model.

• Air-Cooled Generators: These use air to manage engine heat. Ask whether an air-cooled model can meet your household’s backup power requirements.
• Liquid-Cooled Generators: These use liquid coolant to manage engine heat. Discuss whether this type is appropriate for your home’s power needs.
• Choosing the Right Type: The best option depends on the appliances and systems you want to power. A free in-home assessment can help you evaluate suitable generator options.

Natural Gas vs. Liquid Propane: Selecting Your Fuel Source

Natural gas and liquid propane are fuel options to consider for a home backup generator. The suitable option depends on fuel availability at your property and the requirements of your selected generator.

• Natural Gas: Ask whether your property has access to a suitable natural gas supply.
• Liquid Propane: Discuss the storage and supply requirements if you are considering propane.
• Before deciding: Confirm which fuel options are suitable for your property and what installation requirements apply.

Understanding the Automatic Transfer Switch (ATS)

An automatic transfer switch (ATS) is the brain of your standby generator system, ensuring a seamless transition to backup power when an outage occurs. This crucial component monitors the utility power and automatically switches your home’s electrical load to the generator within seconds of a power failure, then switches back to utility power once it is restored.

• How it works: When the ATS detects a loss of utility power, it signals the generator to start. Once the generator is up to speed, the ATS safely disconnects your home from the utility grid and connects it to the generator. This prevents dangerous back-feeding of electricity into the utility lines. When utility power returns, the ATS reverses the process, shutting down the generator after a brief cool-down period.
• Why it is crucial: The ATS provides hands-off, automatic operation, meaning you do not need to be home to start the generator or manually switch power sources. This ensures continuous power for essential systems, even if you are away. It also guarantees safety by isolating your home from the utility grid during an outage, protecting utility workers and your appliances.

The Professional Installation Process: What to Expect

A professional installation ensures your automatic standby generator works seamlessly and safely. The process involves careful site preparation, electrical work, and fuel line connection, all handled by licensed technicians. At Comfort-Air, we manage every step, from the initial assessment to the final system test, to give you complete peace of mind.

1. 1

   Free In-Home Assessment

   Our process begins with a visit to your home to perform a detailed load calculation, identify the appropriate installation location that meets all codes, and discuss your fuel source options.
2. 2

   Site Preparation and Permitting

   We prepare the installation site, typically with a pre-cast concrete pad, and handle all necessary permits with the City of San Antonio or your local municipality.
3. 3

   Generator Placement and Connections

   Our team sets the generator in place. Then, our licensed electricians and plumbers make the electrical and fuel connections, including the critical installation of the automatic transfer switch (ATS) at your main electrical panel.
4. 4

   System Activation and Walkthrough

   Once all connections are made and inspected, we start the generator, simulate a power outage to test the automatic transfer switch, and walk you through the system’s operation and monitoring features.

Navigating San Antonio Permits and HOA Rules

Installing a standby generator is a significant home improvement that requires adherence to local regulations. Neglecting these steps can lead to fines, installation delays, or even safety hazards. Comfort-Air handles the entire permitting process, ensuring your installation is fully compliant with all local codes in San Antonio and Bexar County.

• City of San Antonio Permits: Generators require electrical and building permits to ensure they are installed safely and meet all structural and wiring standards. These permits verify that the installation adheres to the National Electrical Code (NEC) and local amendments.
• Bexar County and Hill Country Regulations: For homes outside San Antonio city limits but within Bexar County or the broader Hill Country area, different county or municipal regulations may apply. Our team is familiar with the varying requirements across our service radius.
• Homeowners Association (HOA) Rules: Many HOAs have specific rules regarding generator placement, noise levels, and aesthetic requirements. It is important to check your HOA covenants before planning an installation to avoid potential conflicts. We can help you understand common HOA considerations.

Generator Placement and Safety Codes in San Antonio

Proper placement of your home backup generator is not just about convenience, it is a critical safety and compliance issue. Local codes in San Antonio dictate specific clearances to protect against exhaust fumes, fire hazards, and noise pollution. Incorrect placement is a common and costly mistake homeowners can make.

• Carbon Monoxide Safety: Generators produce carbon monoxide, a colorless, odorless gas that can be deadly. Codes mandate specific distances from windows, doors, and air intakes to prevent fumes from entering your home or a neighbor’s.
• Fire Hazards: Clearances from combustible materials, property lines, and other structures are essential to mitigate fire risks. The unit must also be accessible for maintenance and emergency shut-off.
• Noise Considerations: While modern generators are quieter, local ordinances may have noise restrictions, especially in residential areas. Strategic placement can help minimize sound impact on your property and neighbors.
• Fuel Line Accessibility: Placement must also consider the most direct and safest route for connecting to your natural gas or liquid propane fuel source.

Our Comfort-Air technicians are experts in San Antonio’s specific placement codes, ensuring your generator is installed safely, legally, and optimally for performance.

Ongoing Maintenance for Reliable Generator Performance

A home backup generator requires appropriate maintenance to help keep it ready for use. Before choosing a system, understand the maintenance requirements for your selected generator and the service options available.

• Routine Maintenance: Ask which maintenance tasks your generator model requires.
• Service Schedule: Follow the maintenance recommendations for your selected model.
• Monitoring Options: Ask whether remote monitoring is available for your system.
• Maintenance Support: Review Comfort Air’s generator maintenance plans for available service options.