Castle FIlters: A New 1 Year HVAC Filter | Free Shipping In The Continental USA!

Frequently Asked Questions

Do Castle Filters really LAST FOR 1 YEAR?

YES!

Here’s why: Traditional, ninety day, filters are made with paper thin media. These types of filters only hold dirt that are larger than the flow holes through which the air passes. And once these holes are full, you are done filtering and airflow stops! This drastically reduces the efficiency of the filter and DRAMATICALLY increases the load on your HVAC system. This costs you MORE MONEY.

On the other hand, Castle Filters consist of two layers of filter media that are three quarters of an inch thick AND an additional internal layer of tacky media one quarter inch thick.

This innovative layer of tacky media allows the air particulates to get glued into the filter, like flypaper. Dirt gets trapped in the sticky medium without blocking the air holes. This allows Castle Filters to keep working long after regular HVAC filters stop, saving you money AND keeping your HVAC system operating more efficiently!

DO I NEED TO WASH MY CASTLE FILTER?

No!

No-Toil, the maker of your Castle Filter, has been making filters for the motorcycle industry for years and is all about washing filters (See notoil.com.) But, as we researched HVAC filters we discovered some big problems with making a washable HVAC Filter:

Washed HVAC filters don’t stop mold from spreading. Filters need to have an ANTIMICROBIAL treatment in order to keep from growing the mold it collects. Washed filters remove the antimicrobial treatment which means your HVAC system could be broadcasting mold to every room in your house, NOT GOOD.

Also, washable filters need to be serviced every 4 to 6 weeks which is against one of the main reasons we decided to make these filters; namely to keep you off the ladder! Castle Filters wants to save you time, money and convenience!


WHY IS MY CASTLE FILTER BLACK AND NOT WHITE LIKE OTHER FILTERS?

What shows the dust more, a white car or a black car? Anyone who has owned a black car knows the answer to this question; the black car shows ALL the dirt! Unlike other filters, Castle Air Filters want you see how much dust they collect! The simple reason for this is our filters hold so much more than other filter brands. Oh, and black filters look sexier and everyone knows how important it is to have sexy HVAC filters 🙂 !!!

YOU CLAIM NINETY DAY FILTERS ONLY LAST FOR ONE MONTH BEFORE THEY NEED REPLACED, DOES THIS MEAN MY ONE YEAR CASTLE FILTER ONLY LAST THREE OR FOUR MONTHS?

No!

Castle filters hold TWENTY times the dirt of a ninety day filter! Standard ninety day filters hold between two to five grams of dirt before they become restricted. Castle Filters hold FORTY grams of dirt before they become restricted.


Castle Filters are rated as MERV 9, isn’t a higher MERV rating better?

Filters with a High MERV rating by definition have a higher flow restriction. This is not good for your equipment. Your HVAC filter is designed to protect your equipment and flow is very important. And here is an important piece of information; HVAC filters will not make the air in your house cleaner! Some filter companies build expensive filters with high MERV ratings claiming they reduce allergens… this is not true. If you do an internet search on “how often should I change my furnace filter” You will find some interesting information. The Washington Post printed a story in 2006 regarding findings by the Canadian Government: Canada Mortgage and Housing Corporation, the Canadian government agency that researches housing issues and provides financing, reached some surprising conclusions several years ago when it set out to determine whether upgrading to a better filter made much of a difference in the air quality inside houses. Researchers compared the air quality inside houses when furnaces ran with five different filtering arrangements, including old-fashioned filters; newer pleated, electrostatically charged filters; and electrostatic precipitators that cost hundreds of dollars. Particle counters installed in ducts before and after the filters showed that cleaner air flowed out of the better filters. But the actual difference inside the houses? Very little.

It turns out that most of the dust, of all particle sizes, in the air in our houses becomes airborne because of our activities. When people walk across a dirty carpet, their feet stir up a cloud of dust. When someone leaves toast in the toaster too long, bits of soot go into the air. Even getting out of bed stirs up a “personal cloud,” says Don Fugler, who directed the research. A furnace filter many yards away, connected to equipment that operates only periodically, doesn’t do much to remove that dust before it settles. That’s why a vacuum cleaner bag, which does pick up settled dust, collects far more dust over one to three months than you will find on your furnace filter when you change it after an equivalent length of time. “Unless the fan runs all the time, you’re getting very little filtration for the extra money you are spending,” Fugler says.
Running the fan continuously allows the filter to remove more particles, but it adds to the power cost by at least several hundred dollars a year, and it subjects people to moving air all of the time, which many people find unpleasant.

Fugler’s advice? Focus on reducing the amount of dust that is stirred up inside your house by encouraging everyone to leave their shoes at the door; keeping pets and smokers out of the house; vacuuming regularly and thoroughly with a central vacuum system or a portable vacuum equipped with a HEPA (high-efficiency particulate air) filter; and “using as effective a furnace filter as the homeowner’s budget allows,” changing or cleaning the filter often.

The Castle filter will remove 94.9% of dust particles larger than 7 microns and 92.7% of dust particles larger than five microns. These larger particles are the most damaging to your equipment and the small particles that a high MERV filter traps harmlessly blow through your system. In the end, having a filter with a higher MERV rating might make you feel warm and fuzzy, but all it is really doing is making your furnace work harder. Castle Air Filters are designed to save you money and keep your HVAC systems running smoother for longer.


DOES A CASTLE FILTER GIVE OFF ODORS OR FUMES?

No!

The Castle Filter treatment is 100% biodegradable and non-toxic. It is made from plants and has no solvents. Arizona Chemical performed a “headspace” test which showed zero fumes, odors and toxins at higher than normal operating temperatures (please see https://en.wikipedia.org/wiki/Headspace_technology for more information on headspace analysis.)

I ONLY CHANGE MY 90 DAY FILTER ONCE OR TWICE A YEAR, WHY SHOULD I INVEST IN A CASTLE FILTER?

BECAUSE IT SAVES YOU MONEY!!

If you do not change your filter when recommended by the filter manufacturer, even if it does not look dirty, your equipment will be working harder and your energy costs will be higher. Using a Castle Filter saves you money in operating costs because your equipment will run more efficiently.


HOW WILL THE CASTLE FILTER SAVE ME MONEY?

There are more factors than the price you pay for your filter. We invite you to run a test on “CHEAP” filters. Take some loose dirt or baking flour and put it on one of these filters and shake it to see how much dust will fall through. NOW imagine everything that is falling through is going directly into your expensive furnace! This dust collects on your heating coil and leads to very costly repairs. If you do an internet search with keywords; “How often should I change my furnace filter,” you will find several articles which corroborate our assertion.

I used to live in a three thousand three hundred square foot house in the central valley of northern California. I lived in this house for twenty two years. Back then, I did not understand the importance of HVAC filter maintenance. I had two HVAC units for the house, one for upstairs and one for downstairs. I had two filters in the house to service. And like many people, I would go to the store once or twice a year and buy a middle of the road filter. At best, I was changing my filter once every three to six months.

I am not sure how many of you are familiar with The central valley of Northern California, but it is hot in the summertime and cold in the winter. Summer has days well over one hundred degrees fahrenheit and the winter has temperatures below freezing. So for six months out of the year I would have utility bills around one thousand dollars per month.

I had costly repairs on my HVAC system too. Over four occasions, I spent more than fifteen thousand dollars in repairs.
If I had known then what I know now! I could have saved thousands of dollars, and a lot of time and grief, if I had used and replaced a Castle filter once a year back then.

Let’s suppose that I could have saved twenty percent off my power bill during the hot and cold months:


Monthly Power Bill ($)

$1,000

Savings (%)

20%

Savings ($)

$200

Annual Savings ($)

$2,200

22 Years Savings ($)

$26,400

Twenty six thousand dollars!

And this is only taking into consideration the extreme months! Even at a savings of ten percent, Castle filters more than pay for themselves. And I am not sure how much I would have saved in repairs over my twenty-two years, but I know this;
Machines that have less load on them over a long period of time last longer. If I only saved one of those expensive repairs by using Castle filters, I would have saved several thousand dollars!


DO YOU GUARANTEE THE CASTLE FILTER?

YES!

If for any reason you are not 100% happy with your Castle Filter, return it to us with your receipt and we will refund what you paid for the filter.

YOU DO NOT HAVE MY FILTER SIZE.

Castle filters offer the majority of the sizes that HVAC filters are using today. If you need a filter size different from what is currently offered, please e-mail us and let us know and we will do our best to accommodate you. The more requests we get for your size, the sooner we will make the size you need.