To maintain furnace filters appropriately is crucial for keeping the whole HVAC in a good condition because they used to protect different details inside the system, including blower motor, from debris and dust. Except for equipment protection function, furnace filters serve as a blockage for air pollens and microparts contained there, providing you with clean and fresh air.
Timely and regular replacement of furnace filters is an important action within HVAC system maintenance, that allows to improve air quality, save HVAC system from damage, and be sure that it is efficient. Emergency Plumbing prepared a short guide related to furnace filters maintenance, which may help you know more and be able to perform replacement by yourself, if necessary.
HOME FURNACE FILTERS TYPES
There are several differences regarding filter types used for commercial and residential property. Speaking about households the major types used in HVAC systems are:
- Fiberglass/synthetic;
- Pleated;
- Polyester;
- Electrostatic;
- HEPA
All of these types are disposable and require regular replacement, while the frequency is determined by the manufacturer. Although, sometimes you may also face reusable filters installed to HVAC systems, which also require regular maintenance, which comes down to cleaning.
FAQ REGARDING FURNACE FILTERS REPLACEMENT
WHAT ARE THE COSTS?
Obviously, that the cost of replacement directly depends on the furnace model and such parameters as MERV, the thickness of the filters used, materials of the filter. Taking into account the number of factors, which affect the cost it may vary from $10 to $50 and more.
WHAT DOES MERV MEANS?
MERV is a rating, which measures the furnace filter’s efficiency. The abbreviation means the minimum efficiency reporting level. The higher the rating the furnace filter has, the higher efficiency in eliminating the smallest microparts should be expected from it. The range of MERV related to filters used at the residential property is from 1 to 16.
Deciding on which type of furnace filter to choose for replacement and what MERV should it have it would be a wise decision to involve the HVAC expert for consultation. The expert will check the air quality at your place and perform the assessment of other factors, so the relevant solution would be proposed. Please note, that the high MERV filters are not compatible with certain HVAC systems, because they can block an airflow there. Another option is to contact the representative from your HVAC supplier/producer and clarify these questions with him.
WHAT THE FREQUENCY SHOULD BE?
Each filter has the guide, which includes the recommendation of the frequency of replacement, although individual indoor conditions should be considered. In case there are a lot of pollutants in the area, where you live or somebody from your family suffers from an allergy, the replacement should be made more often.
In general, the frequency depends on the size of filters:
- 1” – 2” should be changed not later than every 3 months;
- 3” – 4” should be changed not later than every 9 months;
- 5” – 6” should be changed not later than every 12 months.
HOW TO DETERMINE THE CORRECT SIZE OF FURNACE FILTER?
The simplest way is to check the size of the old filter, which is printed on its frame. In case the print has been erased, you may apply the instruction/manual related to your furnace to check which types of filters of what dimensions fit the best to the certain model.
It is important to check the size carefully and apply the appropriate filters, otherwise, the negative effects may appear:
- The too big filter would be impossible to install correctly, so the HVAC system can be damaged by pollutants;
- The too-small filter can fail into the plenum, so the system can be damaged by pollutants and the airflow will be blocked.
WHAT SHOULD I DO FOR REPLACEMENT?
The major steps to be performed are:
- Prepare the new filter and unwrap it before installation;
- Identify the compartment of your HVAC system, which is usually situated between the return air duct and furnace/air handler;
- Take away the compartment door, if any, and remove the old filter;
- Check the arrows on the filter frame and slide the filter according to the airflow direction.
- Install back the compartment door, if any.
WHICH BRANDS ARE WORTH OF ATTENTION?
The market offers too many options, so it is easy to get lost among the variety of models and brands. So sometimes it becomes an issue to choose a reliable brand of high quality. According to our experience, we used to highlight the following filters, which will help you to create a safe environment at your homeplace:
- Lennox;
- Honeywell;
- Aprilaire;
- PHILANTHRO.
Although the filters are used to be replaced within the scheduled HVAC maintenance work, some situations require immediate replacement. For these purposes, the furnace filters may be purchased at your HVAC system supplier or the specialized home improvement store. Also, you should check whether your HVAC provider offers you an option of online ordering of respective filters, which is convenient, quick and safe.
Emergency Plumbing is a team of experienced specialists, who can provide you with all necessary consultations regarding HVAC over different areas. You can contact us 24/7, any day of the week, so we will help to resolve any of your issues.
We are ready to help in this and other services. Just contact us 847-868-1800 and save your time and money with us!
