We have answers for your frequently asked questions.

C-N-O Comfort Zone in Saint Peters can answer all your HVAC-related questions. Before you get on the phone, browse these to see if we already responded to your question online. If you don’t see your question on the list or want more information on a subject, give us a call at 636-578-1777. Our staff can offer you the information you’re looking for in a jiffy.
Just like you need to take your car in to the shop for normal tune-ups, such as oil changes or checking out possible problems, your home comfort system should get the same kind of attention. Scheduled maintenance by a trained technician provides numerous benefits to your HVAC equipment, which can help your systems operate efficiently and prevent costly breakdowns.
Call C-N-O Comfort Zone at 636-578-1777 to get an in-depth quote on Lennox equipment.
With two-stage heating, furnaces may run on two different levels: high and low. Since you can heat your home on the low setting most of the time, a two-stage furnace can work longer and more efficiently. Two-stage heating also works more quietly than traditional furnaces and can offer more even heat distribution and fewer temperature swings.
Lennox’s Precise Comfort™ technology is an operating and control system that permits a furnace to adjust heat and airflow by incredibly small amounts, as low as a 1 percent change. The system is automatic and works similar to cruise control, making adjustments gradually to meet your comfort demands with energy efficiency.

Depending on how old your previous furnace was, you could experience a host of differences. Furnaces today are created to give more even and efficient heating than ever before. Modern furnaces also better regulate temperature and air flow, moving more air over the heat exchanger than older furnaces.

Additionally, new furnaces are crafted to integrate with other high-efficiency HVAC products, such as air conditioners. The air conditioner blowers provide your heating system an extra bump so it can deliver cool air around your home efficiently. Special features like variable speed motors will also help decrease noise associated with operating your equipment and easily meet your family’s airflow needs.

The Department of Energy recently increased the minimum efficiency levels for air conditioners, heat pumps and packaged units made after Jan. 1, 2015, since heating and cooling contributes significantly to a home’s total energy usage. The requirements vary by region, so call C-N-O Comfort Zone for the efficiency standards for Saint Peters.

Heating and cooling makes up a large portion of your monthly utility bill. Buying HVAC equipment with high efficiency ratings, such as SEER for air conditioners and AFUE for furnaces, is a simple step that can go a long way in lowering energy output. Beyond these ratings, also think about:

  • Routine maintenance – regularly having a pro tune-up your equipment will keep it working at its greatest potential.
  • Adding a zoning system – by focusing your heating and cooling on the rooms you use most frequently, you won’t have to pay to heat or cool areas of your home that aren’t used often.
  • Installing a programmable thermostat – the Department of Energy estimates that a programmable thermostat can reduce heating costs by up to 35 percent and cooling costs by up to 25 percent. Leave it up to your thermostat to turn down the heat when you’re not around and go back to your preferred temperature when you’re home.

There are many reasons to pick Lennox, but the top three are:

  • You know and trust the name – Lennox is known around the world for its quality home comfort products.
  • Innovation and high quality – Lennox is an industry leader, giving you a complete line of innovative solutions for your home comfort needs.
  • Commitment to excellence – We are committed to offering customers not only quality products, but also quality service. You can trust Lennox dealers, like those of us at C-N-O Comfort Zone, to help you identify the right system for your home, expertly install it, and keep it working smoothly every time.

Improving your home’s indoor air quality starts with four basic strategies:

  • Eliminate – poor indoor air quality leaves your home filled with air pollutants floating around your home, so to improve IAQ, the first step is to get rid of as many pollutants as possible. You can easily do this is by cleaning and vacuuming at least once a week, frequently washing linens and storing cleaning products safely.
  • Ventilate – proper insulation is great for keeping your home warm in the winter and cool in the summer, but it also makes it more difficult for airborne pollutants to escape. Products like our Healthy Climate® ventilation system help swap out stale air for fresh, filtered outside air.
  • Clean – good ventilation and frequent cleaning are a start, but Healthy Climate® air filters, germicidal lights and PureAire™ purification systems take your IAQ to the next level by holding microscopic particles, killing germs and removing particles and germs while destroying chemical vapors.
  • Monitor – programmable thermostats will help you monitor the humidity levels and temperature to help prevent particles and germs from piling up and keep your home comfortable.
Our Healthy Solution Finder lets you pick details specific to your family and home and will help you find equipment best suited to meet your needs. You may also consult with C-N-O Comfort Zone experts who can make a recommendation based on their evaluations of your home and your current indoor comfort system.
You may be surprised to learn that air conditioners don’t technically make your home cooler; they actually remove the hot air and transfer it outside. This hot air is pushed across a refrigerant coil on the indoor unit and then is sent to the outdoor unit where it is released. Your air conditioner transfers as much hot air outside as is necessary to reach the temperature you have set on your thermostat.
Different regions have different minimum energy efficiency standards. Additionally, air conditioners, heat pumps and packaged units made after Jan. 1, 2015, have higher minimum efficiency levels than HVAC products manufactured prior to that date. The team at C-N-O Comfort Zone can help you figure out the minimum requirements for Saint Peters, let you know if your current equipment meets those requirements or help you find a replacement air conditioner that does.
Your system’s service panel will have a white label on it, with your system’s model and serial numbers at the top. M/N stands for model number and S/N is the serial number.
Since equipment size needs are different for every home, the best way to figure out the right size equipment for your home is to have a technician from C-N-O Comfort Zone come out to perform load calculation tests. The tests take measurements such as square footage, insulation value and amount, and more into account to determine your home’s individual HVAC equipment needs.
Yes – debris can affect your system’s ability to function effectively. It’s common for heat pumps to have frost or ice on them in the colder months, but many include defrost controls so they can work efficiently regardless of the weather conditions.
When a cooling systems has two-stage cooling, it means that there are two levels of operation. This enables the system to work more efficiently since there is one level for milder weather and another for harsher weather that demands the system work harder. Two-stage cooling also enables more even temperatures so you don’t experience extreme differences in temperature. Aside from better efficiency, other benefits of two-stage cooling include quieter operation and enhanced humidity control.
When your cooling unit freezes up, there are a variety of reasons why it could be doing so. The most frequent reasons include: dirty filters, low refrigerant, a dirty evaporative coil and a faulty blower motor or relay. A dirty filter is something you can fix as a homeowner, but the others need to be done by a professional like those at C-N-O Comfort Zone. Contact them at 636-578-1777 with any additional questions.
C-N-O Comfort Zone has a number of great thermostat options for your HVAC systems. The best thermostat for you will depend on variables such as whether you want one that’s programmable or not. No matter what kind of thermostat you’d like – or if you’re looking for something that can fit with a home automation system – call C-N-O Comfort Zone to hear about which thermostats you can choose from. Our team will help you find one that’s best for your system, your family’s needs and your budget.
A heat pump can tackle both your home’s heating and cooling needs, offering you one HVAC system that can be used all year. In the warmer months, heat pumps act like an air conditioner, capturing the hot air from inside your home and transferring it outside; in the cooler months, this process is reversed. Heat pumps can be very energy efficient and may produce two to three times more heat than the energy needed for the process.
At C-N-O Comfort Zone, we do recommend replacing both your indoor and outdoor units at the same time because:
  • Outdoor systems are now built to work with their matching indoor system for the highest efficiency possible. When you replace only one of your systems, you may not see the same energy savings as if you had replaced them together.
  • Thanks to technological innovation, newer systems mean increased efficiency. This is also true for HVAC systems. While the advancements focus on greater heating and cooling efficiency, they also include benefits such as better air handling, filtering and noise reduction.
  • If your heating and cooling systems are over 10 years old, they need to be replaced. Older models have outdated technology that is likely adding to your energy costs due to poor efficiency. So by replacing your indoor system at the same time as your outdoor equipment, both your systems will provide better energy efficiency that helps you reduce your energy bills and keep your home more comfortable.
Yes. Your SunSource® Home Energy System has a communication module that transfers the system’s performance data to a website. The website will show your system’s status, energy production and environmental benefits, as well as carbon offsets in real time.
Yes, you will need an Internet connection if you want to make use of the system’s online monitoring system. The system lets you view energy production and environmental information. The monitoring service is provided free for five years, and the performance-monitoring website is maintained by an independent third party, Enphase Energy Inc.
Rain will clean the modules naturally in most areas; however, if you live in a dusty area, you might see improved performance after periodically spraying the modules with water. Please note that high-pressure hoses and detergents should never be used to clean solar modules, as they can damage the product.
C-N-O Comfort Zone can help you find the right thermostat for you based on your home and current heating and cooling equipment. We carry a number of programmable and nonprogrammable thermostats, which can help improve the efficiency of your home’s furnace and/or air conditioner. Browse our thermostats or give us a call at 636-578-1777 for more information.
Your furnace and air conditioner can contribute significantly to your monthly utility bills. However, these costs can be reduced with innovative and high efficiency products from Lennox®. Keep an eye out for high SEER and AFUE ratings when you’re searching for a new air conditioner or furnace, respectively, as higher SEER and AFUE ratings denote higher efficiency products. If you’re not buying new heating and cooling equipment, consider factors such as: 1. Maintenance: Furnaces, air conditioners and other HVAC equipment run more efficiently when they are regularly maintained. 2. Zoning: When portions of your home are rarely used, you’re spending more money to heat or cool them to the same temperature as the rest of the house. A zoning system allows you to section off different parts of your home and control the temperature by each area. 3. Programmable Thermostats: Programmable thermostats may help you lower your heating costs by 35 percent and your cooling costs by 25 percent, according to the U.S. Department of Energy.
A zoning system allows you to parcel your residence and heat or lower the temperature in each part differently. While these systems function well for homes that have parts that are infrequently occupied, they may also be helpful in situations where you and your family argue about the temperature in certain areas of your house. There are a number of additional pluses of zoning systems, including efficiency and comfort. Look through our selection of zoning systems or give C-N-O Comfort Zone a ring to see how a zoning system could benefit your home.