Home Page link

Larger filter opening ok?

Home| Search | About
Login Password
Register Now! Lost Password?

HVAC Discussions - Heating, ventilation and air conditioning. 

Page 1 of 3       1 2 3 > last >> Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Larger filter opening ok? a 11-27-2007
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by on November 27, 2007, 9:13 pm
Furnace guy said my filter and filter opening looked to small 16x25x1
for the 90% Tempstar N9MP1100F14 gas furnace. I am having a lennox
hc16 filter put in. Will increasing the size from my 16x25x1 to a
larger opening of 20x20x5 or 20x25x5 give me less air flow at my vents
on the first floor, the air flow now is seems to be on the lite side.

The tempstar book on my furnace list a 16x25x1 size that's why im
asking, it must not be too small it that is what it calls for. Dont
mind going to a larger opening if it will help with dust and air flow.

Thanks

Posted by jamesgangnc on November 27, 2007, 10:24 pm
No problems using a larger return. Better in fact. But 20x20 is the same
size as 16x25 just so you know.

> Furnace guy said my filter and filter opening looked to small 16x25x1
> for the 90% Tempstar N9MP1100F14 gas furnace. I am having a lennox
> hc16 filter put in. Will increasing the size from my 16x25x1 to a
> larger opening of 20x20x5 or 20x25x5 give me less air flow at my vents
> on the first floor, the air flow now is seems to be on the lite side.
>
> The tempstar book on my furnace list a 16x25x1 size that's why im
> asking, it must not be too small it that is what it calls for. Dont
> mind going to a larger opening if it will help with dust and air flow.
>
> Thanks



Posted by on November 27, 2007, 10:50 pm
Ok, thanks, in that case I hope they put the 20x25 in. I looked at the
place were it would go and the furnace does not look like it could
take a 20 or 25 in height. 16 is about it as it would be in the area
were the upper part of the furnace would be unless they taper it down
from the larger opening to the smaller one on the furnace. I guess
that would work. Thanks for you reply . The furnace has a heat pump
also that is why I had them come out, it sticking in defrost and going
in defrost even when it's 50 outside. Already replaced the defrost
board but now they think the evaporator has a restriction and they
are going to put a pump on it and said a screen sometimes in their
gets clogged, or it could be a sticking reversing valve, pumping cost
like 450.00 and if its the valve a total of 850.00 and that under
warranty, I pay for labor. it's only 4 years old. Worked fine in the
summer in air condition but now he put in air condition its not
switching so it still tries to heat. He showed me on the evaporator
were its getting about an inch or so of frost that is were he thinks
the restriction is and I guess the screen that clogs, the charge was
right so it was not that. I use propane and with the heat pump not
working right and the price of propane I would even pay for a new heat
pump propane cost so much.. Again thanks for you info on the filter

wrote:

>No problems using a larger return. Better in fact. But 20x20 is the same
>size as 16x25 just so you know.
>
>> Furnace guy said my filter and filter opening looked to small 16x25x1
>> for the 90% Tempstar N9MP1100F14 gas furnace. I am having a lennox
>> hc16 filter put in. Will increasing the size from my 16x25x1 to a
>> larger opening of 20x20x5 or 20x25x5 give me less air flow at my vents
>> on the first floor, the air flow now is seems to be on the lite side.
>>
>> The tempstar book on my furnace list a 16x25x1 size that's why im
>> asking, it must not be too small it that is what it calls for. Dont
>> mind going to a larger opening if it will help with dust and air flow.
>>
>> Thanks
>


Posted by Bubba on November 28, 2007, 7:49 am
wrote:

>No problems using a larger return. Better in fact. But 20x20 is the same
>size as 16x25 just so you know.
>
So obviously you dont have the first clue about static pressure?
Bubba

>> Furnace guy said my filter and filter opening looked to small 16x25x1
>> for the 90% Tempstar N9MP1100F14 gas furnace. I am having a lennox
>> hc16 filter put in. Will increasing the size from my 16x25x1 to a
>> larger opening of 20x20x5 or 20x25x5 give me less air flow at my vents
>> on the first floor, the air flow now is seems to be on the lite side.
>>
>> The tempstar book on my furnace list a 16x25x1 size that's why im
>> asking, it must not be too small it that is what it calls for. Dont
>> mind going to a larger opening if it will help with dust and air flow.
>>
>> Thanks
>

Posted by Stormin Mormon on November 28, 2007, 8:50 am
The wildcard is the x5, it sounds like he's thinking a much t hicker pleated
filter. A 16 x 25 x 1 is a very common filter size which is found at most
hardware stores, and at all the Walmarts near me. The other one with the x5
thickness is likely a specialized filter which may be harder to find.

The 5 inch thick filter likely has a LOT more surface area, and very likely
would provide better air flow and better filtration. I'd want to ask if they
are available at box stores, or if you would then be locked into a service
contract for replacement filters.

--

Christopher A. Young;
.
.

Furnace guy said my filter and filter opening looked to small 16x25x1
for the 90% Tempstar N9MP1100F14 gas furnace. I am having a lennox
hc16 filter put in. Will increasing the size from my 16x25x1 to a
larger opening of 20x20x5 or 20x25x5 give me less air flow at my vents
on the first floor, the air flow now is seems to be on the lite side.

The tempstar book on my furnace list a 16x25x1 size that's why im
asking, it must not be too small it that is what it calls for. Dont
mind going to a larger opening if it will help with dust and air flow.

Thanks



Page 1 of 3       1 2 3 > last >>
Similar ThreadsPosted
rough opening for Carrier 52F wall sleeve April 14, 2007, 12:07 pm
Tempstar PGX filter? November 12, 2006, 1:29 pm
Intake grill with filter September 5, 2006, 9:22 am
Furnace filter conventions September 10, 2006, 7:55 pm
Home Air Filter Advice August 29, 2007, 12:49 pm
Vacuuming HEPA filter September 9, 2007, 9:45 pm
changed my filter today October 13, 2007, 8:19 pm
Any idea who manufactured a filter register? July 19, 2007, 11:18 pm
Home Air Filter change frequency August 24, 2007, 3:41 pm
Lennox Furnace Filter Question December 2, 2007, 3:45 pm

Contact Us | Privacy Policy

XML SitemapXML Sitemap