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So my buddy Greg Ellis hits me up on Skype this morning and asks if I have time to 'take a walk', which is how we like to meet and discuss business. We both like exercise, and it's a great way to get both the blood and entrepreneurial juices flowing. But today, since it's the last day of our vacation here in Utah, I'd promised my family they could have Krispy Kreme Donuts for breakfast, so I told Greg we could talk on a donut run instead. He didn't object, and was at my house a few minutes later. 🙂
After picking up the donuts, we were headed back to my house when I suddenly yelled out 'Oh! I need sheet metal!' as I turned sharply into the Lowes Hardware parking lot. Greg laughed and said 'Of COURSE you do!' as if it's something everyone yells when returning home with a dozen Krispy Kremes.
Furnace Filter Slot Seal Door Cover
There's a project here at the Utah house that I keep forgetting to tackle, into which Greg was unwittingly sucked. He's always a great sport, however, so we still talked biz as we roamed the store to grab a 6 x 18″ piece of galvanized aluminum, some tin snips, and some sheet metal screws.
Back at home, Greg was more than happy to help out as I checked this minor annoyance project off my list. Thanks again for the help, Greg!
This project centers around the filter in my furnace. The HVAC 'professional' who installed the furnace in this house gave me enough room in the return duct to insert a 20 x 25 x 1 inch filter, which sits diagonally inside the duct, like this:
However, when the furnace's fan turns on, the suction will sometimes pull the bottom of the filter towards the fan, which stands the filter straight up on the right side of the intake duct. Then, when the fan shuts off and the suction disappears, the top of the filter will fall backwards, thereby allowing unfiltered air into the furnace. It was sloppy ductwork on the part of the installer, and it's something I've been meaning to fix for years.
Measure Twice, Cut Once, Cut Yourself
Because the duct is 20″ wide (I know that because a 20″ wide filter fits perfectly) I knew the width of my 18″ sheet of metal would be fine. I used my level as a straight edge to score a 3″ section on the sheet metal:
Scoring my sheet metal.
Then I used my tin snips to cut as closely as I could along the score line:
Furnace Filter Slot Door Cover Replacement
Of course, I nicked my thumb on the sharp edge of the newly cut metal, but it wouldn't be a DIY project without a little blood.
Bend and Fit
Next, I used a an exposed 2 x 4 on the wall of the utility room a jig to help me bend the strip in half, meaning it was no longer just a strip… it was a bracket!
Strip + bending = bracket!
Furnace Filter Slot Door Cover Home Depot
I placed the strip inside the duct and slid it up against the base of the filter, so I'd know where to secure it, then drew a line along the edge of the bracket with a Sharpie:
Secure and Finish
I removed the filter so I'd have a bit more room to work, lined up the bracket with the Sharpie line, then secured it to the bottom of the duct with some sheet metal screws:
New bracket secured.
The final step was to replace the filter, and check to make sure the bottom couldn't slide forward. Success!
So what have we learned?
Epstein the theory of gambling and statistical logic theory. 'Richard Epstein's classic text, The Theory of Gambling and Statistical Logic has defined the mathematics of gambling for an entire generation of researchers, statisticians, computer programmers, and serious students of the various games of chance we play.
We've learned that donuts can totally help you remember DIY projects, and we now know the answer to the eternal question: 'How many BYU Business School graduates does it take to fix a furnace filter duct?'
More from this site:
Three Things To Try If Your Furnace's Air Filter Is Stuck In Its Slot
Many air duct sections leading into furnaces have slots on them that allow you to quickly change an air filter by opening a slot's cover and pulling the filter out by its edge. While this is convenient, it can be difficult to deal with an air filter in this situation that's stuck to a floor or wall without tearing the filter into little pieces. So if your old air filter won't budge at all from its slot in your furnace's connecting air duct, make sure to try these three things.
Victorian gambling legislation act. Run The Furnace To Heat The Filter Area Up
Bend and Fit
Next, I used a an exposed 2 x 4 on the wall of the utility room a jig to help me bend the strip in half, meaning it was no longer just a strip… it was a bracket!
Strip + bending = bracket!
Furnace Filter Slot Door Cover Home Depot
I placed the strip inside the duct and slid it up against the base of the filter, so I'd know where to secure it, then drew a line along the edge of the bracket with a Sharpie:
Secure and Finish
I removed the filter so I'd have a bit more room to work, lined up the bracket with the Sharpie line, then secured it to the bottom of the duct with some sheet metal screws:
New bracket secured.
The final step was to replace the filter, and check to make sure the bottom couldn't slide forward. Success!
So what have we learned?
Epstein the theory of gambling and statistical logic theory. 'Richard Epstein's classic text, The Theory of Gambling and Statistical Logic has defined the mathematics of gambling for an entire generation of researchers, statisticians, computer programmers, and serious students of the various games of chance we play.
We've learned that donuts can totally help you remember DIY projects, and we now know the answer to the eternal question: 'How many BYU Business School graduates does it take to fix a furnace filter duct?'
More from this site:
Three Things To Try If Your Furnace's Air Filter Is Stuck In Its Slot
Many air duct sections leading into furnaces have slots on them that allow you to quickly change an air filter by opening a slot's cover and pulling the filter out by its edge. While this is convenient, it can be difficult to deal with an air filter in this situation that's stuck to a floor or wall without tearing the filter into little pieces. So if your old air filter won't budge at all from its slot in your furnace's connecting air duct, make sure to try these three things.
Victorian gambling legislation act. Run The Furnace To Heat The Filter Area Up
If you haven't had to run your furnace for a long time and you're just changing out the filter now to save on energy and maintenance costs in the coming months, your old filter has had plenty of time to get stuck to the metal around it. This process has been helped along because the temperature around the filter has been mostly constant and without any heat spikes that come from you turning on the furnace.
Giving your furnace a short test run for the season before you change out your filter will give the filter's cardboard border time to expand a little and shake off any chemical or physical bonds holding it down on its own. Even if the initial air stream itself won't be heated until it actually goes through the furnace, it'll get warmer and warmer as it cycles through your home and back into the air duct section holding the filter.
Gently Rock The Visible Cardboard Line From Side To Side
To avoid a huge tear when you finally dislodge a stuck air filter from your air duct's wall, it's a good idea to rock the visible cardboard line from side to side before you pull on it with all your might. First, put one hand on the cardboard near the top and the other hand on the cardboard near the bottom. Then, move your topmost hand left while you move your other hand right. Switch out the directions a few times until you can feel the air filter getting noticeably looser.
Pull On The Top Of The Filter A Little Harder Than The Bottom
Since moisture and gunk tends to collect on the bottom of an air duct more often than it does on the top, the top of a stuck air filter is often significantly easier to pull on than its bottom. Therefore, when you're pulling on the filter in earnest, focus most of your effort on the top of the cardboard. Only make a change if the top feels incredibly loose while the bottom is still as stuck as ever. Of course, if you cannot remove the air filter at all, then contact a furnace repair specialist.
