FAQs | Fresh Tech AC

HVAC FAQS

It varies depending on the type of filter you have. If you have cheaper, disposable filters, we recommend changing them every 30 days. If you have pleated, or poly, filters, we recommend changing them every 90 days. Media filters or CleanEffects filters can last a little longer and should be replaced about once a year.
Not necessarily. It is important to purchase an air conditioner that is the right size for your home. If you buy an AC unit that’s too big, it will cool your home faster, but it will also be less efficient and will not eliminate humidity well enough. It will have short-run cycles. While it will cool the air quickly, it will shut off before it blows enough air across the indoor coil to drain water from your system. This will leave too much moisture in the air, which can lead to mold and mildew in your home.

Your system starting and stopping more often , may cause it to use more energy and wear down faster. Longer run cycles are more efficient.
HVAC systems generally last 10 to 15 years. However, your system becomes less efficient and performs worse as it gets older. Therefore, after about 10 years, you may want to start looking for a replacement. Even if you are not having any major problems, modern HVAC systems will save you money on your energy bills because they are more efficient. Plus, they generally come with 10-year warranties, so you won’t need to worry about replacing them for quite a while.
Probably not. Older systems use Freon R-22, which has been phased out and replaced with Freon R-410A, also known as Puron. Puron is more environmentally friendly and more efficient. In addition, the minimum SEER rating or efficiency that we can use today is 13 SEER (older systems are 10 SEER and below). The refrigerant and efficiency rating of your indoor coil and outdoor unit must be the same, so you have to replace the whole system at once.
Matched systems ensure maximum performance, maximum efficiency, and maximum comfort.

A matched system will maintain proper cycle times and manage humidity properly for your home. In addition, a matched system will prevent you from paying too much for your energy bills. Your system will run at peak efficiency, with no energy wasted due to improper size.
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Proper air filtration is crucial to the health of both your HVAC system and your family. Air filters prevent dust and dirt from building up in your system to keep it performing at its best. High-efficiency filters do a better job of this and remove dust, dirt, mold, and more from the air. This is especially useful if you have allergies or respiratory issues. High-efficiency filters are better, but not 100% necessary. Whether or not you choose to use them, remember to change your filters regularly.
We recommend having your air conditioner serviced once a year. This will save you on energy and repair costs, keep your system running smoothly and efficiently, and make it last longer. The longer you put off AC maintenance, the worse your unit will perform, and the more likely it is that it will break down. Trying to save money by delaying maintenance may backfire by forcing you to pay more on energy bills, and potentially, on repairs if a serious issue arises with your system.
Duct cleaning includes cleaning the various components of HVAC forced air systems, including the air ducts and registers, grilles and diffusers, heat exchangers, coils, fan motor, fan housing, and the air handling unit housing. Dust, pollen, and other debris may build up in these components if they are not properly maintained.
It depends on your specific home. In some cases, adding insulation will help. In some cases, replacing your HVAC system or other appliances will help. Sometimes replacing your windows can help. Take your entire home into account to figure out what makes the most sense for you.
Once again, the most effective, but most expensive solution is to replace your furnace with a newer, more efficient furnace. Modern high-efficiency furnaces could save you 25% on your energy bills, which means the expense of purchasing a new furnace should pay for itself fairly quickly.

Just as you can set your thermostat to a higher temperature for greater efficiency in the summer, lowering the temperature on your thermostat for at least a portion of the day can save you money on your energy bill in the winter.

Just like in the summer, avoid blocking your vents to ensure that heat is evenly distributed throughout the house. Save energy by closing vents in rooms that you rarely use.

While it may seem counter-intuitive, ceiling fans can help heat your home in the winter, if the blades spin clockwise. Therefore, install ceiling fans for improved energy efficiency in both the summer and winter.

Finally, annual furnace maintenance will ensure that your furnace is running smoothly and efficiently and catch any potential issues.
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Variable speed equipment is typically more efficient and creates a more comfortable environment for you. Traditional systems only read temperature and only use one-speed fans. Variable airflow systems have variable-speed fans that are more efficient because they run at lower speeds when higher speeds are not necessary. They also read both temperature and humidity. Therefore, these systems remove more moisture than traditional systems do, increasing your comfort when it is hotter outside. Finally, variable-speed fans are typically quieter because they are able to run more slowly when appropriate.
In terms of energy efficiency, the general rule is, that in summer: the higher, the better, and in winter: the lower, the better. However, the point of air conditioners and furnaces is to keep your home comfortable. Therefore, you need to find the right balance for you between comfort and energy efficiency. For energy efficiency and lower bills, we recommend keeping your thermostat around 78 degrees in the summer and 68 degrees in the winter.

In addition to your personal preferences, your home’s efficiency in terms of insulation, ducts, air filters, whether you have ceiling fans, whether your vents are blocked, and other factors can affect the optimal temperature for your home.
Yes. R-22 is no longer allowed in new equipment due to environmental regulations. Since many existing residential air conditioning units still use it, R-22 is still produced. However, it is gradually being phased out. By January 1, 2020, the production of R-22 will be reduced by 99.5%. It will become expensive and difficult to find. Therefore, if your system uses R-22 refrigerant, you may want to consider switching to a newer system.
A little variation in temperature between rooms is normal, especially if you only have one thermostat. However, it can also be a sign of poorly designed ducts or air filtration issues. Schedule a free consultation so we can identify the problem and offer solutions to fix it.