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Thanks, guys. That is all good feedback. David: I hadn=E2=80=99t =
considered using a washable filter, but it is an interesting idea. It =
looks like a 4=E2=80=9D one will cost me around $100, so the breakeven =
point is after a year. Not too bad.
But, here is an interesting point that showed up tangentially when I =
Googled =E2=80=9Cwashable furnace filters=E2=80=9D:=20
Fortunately, most 20x25x4 air filters last between six to eight months. =
By that calculation, the average homeowners will not need more than two =
20x25x4 air filters in any given year. In contrast, a one-inch air =
filter will need to be changed every two to three months. =
https://servicechampions.com/benefits-of-a-20x25x4-air-filter-installed-in=
-your-furnace/
If that is true, the cost difference between the 4=E2=80=9D and 1=E2=80=9D=
disappears. Thoughts?
Jim=20
> On Dec 13, 2021, at 5:32 PM, Pat Horne <patintexas@icloud.com> wrote:
>=20
> My shop air handler is set up to use a 2=E2=80=9D filter but the =
installer said to use 2 one inch filters, both good ones. I watch the =
first one & remove it when it is too dirty, move the second one up & =
install a new second one.=20
> There is some discoloration on the second filter, so it is doing =
something.=20
>=20
> If you want to go with two different ones, I=E2=80=99d put the poorer =
one first, followed by the better one.=20
>=20
> My HVAC guy says to not use the corrugated filters, nor the fiberglass =
ones that you can see throughout. He sells me Purolator 312 filters by =
the case.=20
>=20
> Peace,
> Pat
>=20
> Pat Horne=20
> We support Habitat for Humanity
>=20
>=20
> On Dec 13, 2021, at 4:21 PM, Jim Stone <1789alpine@gmail.com> wrote:
>=20
> =EF=BB=BFThe company that installed my HVAC system a few years ago =
used a filter box on the return line that takes 20=E2=80=9D x 25" x 4=E2=80=
=9D filters, which is an unusual, and thus expensive, size - filters =
generally run about $25 each - that is not readily available other than =
online. During construction, my general contractor just had a cheap =
20=E2=80=9D x 25" x 1=E2=80=9D filter in there that seemed to work just =
fine. I checked the installation instructions for the furnace and there =
are no specifications for the filters, other than that they need to be =
changed regularly, which is getting pretty expensive. Is there any =
reason I couldn=E2=80=99t just use 1=E2=80=9D filters, which are less =
than half the price? Maybe even put two of them in the box, a good one =
first to catch most of the dust and a cheap one like the contractor used =
as a secondary one. It is a snug fit and I don=E2=80=99t think there is =
any danger of them tipping, but two would make it impossible.
>=20
> Thanks,
> Jim
> _______________________________________________
>=20
> Shop-talk@autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation $12.96
> Archive: http://www.team.net/pipermail/shop-talk =
http://autox.team.net/archive
>=20
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/shop-talk/patintexas@icloud.com
>=20
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D"">Thanks, guys. That is all good feedback. David: I =
hadn=E2=80=99t considered using a washable filter, but it is an =
interesting idea. It looks like a 4=E2=80=9D one will cost me =
around $100, so the breakeven point is after a year. Not too =
bad.<div class=3D""><br class=3D""></div><div class=3D"">But, here is an =
interesting point that showed up tangentially when I Googled =E2=80=9Cwash=
able furnace filters=E2=80=9D: </div><div class=3D""><br =
class=3D""></div><blockquote style=3D"margin: 0 0 0 40px; border: none; =
padding: 0px;" class=3D""><div class=3D""><font color=3D"#0433ff" =
class=3D""><span style=3D"caret-color: rgb(32, 33, 36); font-family: =
"Google Sans Text", arial, sans-serif; background-color: =
rgb(255, 255, 255);" class=3D"">Fortunately, most 20x25x4 air filters =
last between </span><b style=3D"caret-color: rgb(32, 33, 36); =
font-family: "Google Sans Text", arial, sans-serif;" =
class=3D"">six to eight months</b><span style=3D"caret-color: rgb(32, =
33, 36); font-family: "Google Sans Text", arial, sans-serif; =
background-color: rgb(255, 255, 255);" class=3D"">. By that calculation, =
the average homeowners will not need more than two 20x25x4 air filters =
in any given year. In contrast, a one-inch air filter will need to be =
changed every two to three months. </span></font><a =
href=3D"https://servicechampions.com/benefits-of-a-20x25x4-air-filter-inst=
alled-in-your-furnace/" =
class=3D"">https://servicechampions.com/benefits-of-a-20x25x4-air-filter-i=
nstalled-in-your-furnace/</a></div></blockquote><div class=3D""><div><br =
class=3D""></div><div>If that is true, the cost difference between the =
4=E2=80=9D and 1=E2=80=9D disappears. Thoughts?</div><div><br =
class=3D""></div><div>Jim </div><div><br class=3D""></div><div><br =
class=3D""><blockquote type=3D"cite" class=3D""><div class=3D"">On Dec =
13, 2021, at 5:32 PM, Pat Horne <<a =
href=3D"mailto:patintexas@icloud.com"; =
class=3D"">patintexas@icloud.com</a>> wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><meta =
http-equiv=3D"content-type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><div dir=3D"auto" class=3D"">My shop air handler is set up to =
use a 2=E2=80=9D filter but the installer said to use 2 one inch =
filters, both good ones. I watch the first one & remove it when it =
is too dirty, move the second one up & install a new second =
one. <div class=3D"">There is some discoloration on the second =
filter, so it is doing something. </div><div class=3D""><br =
class=3D""></div><div class=3D"">If you want to go with two different =
ones, I=E2=80=99d put the poorer one first, followed by the better =
one. </div><div class=3D""><br class=3D""></div><div class=3D"">My =
HVAC guy says to not use the corrugated filters, nor the fiberglass ones =
that you can see throughout. He sells me Purolator 312 filters by the =
case. <br class=3D""><br class=3D"">Peace,</div><div =
class=3D"">Pat</div><div class=3D""><br class=3D""><div dir=3D"ltr" =
class=3D"">Pat Horne <div class=3D"">We support Habitat for =
Humanity</div><div class=3D""><br class=3D""></div></div><div dir=3D"ltr" =
class=3D""><br class=3D"">On Dec 13, 2021, at 4:21 PM, Jim Stone <<a =
href=3D"mailto:1789alpine@gmail.com"; =
class=3D"">1789alpine@gmail.com</a>> wrote:<br class=3D""><br =
class=3D""></div><div dir=3D"ltr" class=3D"">=EF=BB=BF<meta =
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D"">The company that installed my HVAC system a few years ago =
used a filter box on the return line that takes 20=E2=80=9D x 25" x<b =
class=3D""> 4=E2=80=9D</b> filters, which is an unusual, and thus =
expensive, size - filters generally run about $25 each - that is not =
readily available other than online. During construction, my =
general contractor just had a cheap 20=E2=80=9D x 25" x <b =
class=3D"">1=E2=80=9D </b>filter in there that seemed to work just fine. =
I checked the installation instructions for the furnace and there =
are no specifications for the filters, other than that they need to be =
changed regularly, which is getting pretty expensive. Is there any =
reason I couldn=E2=80=99t just use 1=E2=80=9D filters, which are less =
than half the price? Maybe even put two of them in the box, a good =
one first to catch most of the dust and a cheap one like the contractor =
used as a secondary one. It is a snug fit and I don=E2=80=99t =
think there is any danger of them tipping, but two would make it =
impossible.<div class=3D""><br class=3D""></div><div =
class=3D"">Thanks,</div><div class=3D"">Jim</div><span =
class=3D"">_______________________________________________</span><br =
class=3D""><span class=3D""></span><br class=3D""><span class=3D""><a =
href=3D"mailto:Shop-talk@autox.team.net"; =
class=3D"">Shop-talk@autox.team.net</a></span><br class=3D""><span =
class=3D"">Donate: <a href=3D"http://www.team.net/donate.html"; =
class=3D"">http://www.team.net/donate.html</a></span><br class=3D""><span =
class=3D"">Suggested annual donation $12.96</span><br =
class=3D""><span class=3D"">Archive: <a =
href=3D"http://www.team.net/pipermail/shop-talk"; =
class=3D"">http://www.team.net/pipermail/shop-talk</a> <a =
href=3D"http://autox.team.net/archive"; =
class=3D"">http://autox.team.net/archive</a></span><br class=3D""><span =
class=3D""></span><br class=3D""><span class=3D"">Unsubscribe/Manage: <a =
href=3D"http://autox.team.net/mailman/options/shop-talk/patintexas@icloud.=
com" =
class=3D"">http://autox.team.net/mailman/options/shop-talk/patintexas@iclo=
ud.com</a></span><br class=3D""><span class=3D""></span><br =
class=3D""></div></div></div></div></blockquote></div><br =
class=3D""></div></body></html>=
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