Oak leaves on a firnace filter

What does it mean if the furnace filter collects lots of lint just like what the dryer makes???...Perhaps the dryer is venting inside and the filter is askew and leaks in the return air or filter gap are pulling it into the furnace. Check 'em.

What does it mean if the filter has three-dozen oak leaves pressed onto it?? Today I found an unusually high bill and a handful of foliage fallen from the neighboring trees. In the attic I found a donut of leaves under the vent where the screen had disappeared. The donut hole led to the passageway – an open return duct at the top of a stud run where leaves had blown into the attic only to be sucked into the furnace.

With this info, it was easy to find and explain to the homeowner why the bill was so high, what could be done about the situation, and how it would help. ”You’re heating and cooling the air straight from the attic…see?”

And what does it mean if there's no filter at all?? ...And no cover?? It means the fan is sucking on the zone where the heater is. That fan is strong enough to SUCK the fumes DOWN the flue pipe if it's a gas or oil burner or a woodstove. This depressurization contributes to hundreds of deaths in the US each year as carbon monoxide is colorless, tasteless and odorless besides deadly. Check your filter, read between the lines and then check the filters of those you love. See the whole story in one quick pic.

Comment

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Kevin Jordan posted a photo
2 hours ago
Mike Burton joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
3 hours ago
Hal Skinner replied to Trip Smith's discussion Starting a Home Weatherization Business. Considering it...
"Hi Tri,p Your 'Yard sign' comment caught my eye.  I work with a Radiant Barrier…"
4 hours ago
Profile IconEric Kjelshus and Trip Smith joined James Sayers's group
Thumbnail

Marketing Energy Efficiency

Sharing ideas, tools and examples of promoting energy efficiency to consumersSee More
6 hours ago
Bob Blanchette replied to Christopher Talarico's discussion Heating with Tankless Water Heater & Hydronic Air Handler vs. Gas Furnace
"When it costs the same price as 2 separate systems there is no juice regardless of how hard you…"
7 hours ago
j. west shared Christopher Morin's blog post on Facebook
13 hours ago
j. west commented on Christopher Morin's blog post UPDATED: Big Changes for Duct Testing in MA
"You're right Christopher- the trick to saving the profit margin is being in several places at…"
13 hours ago
tedkidd replied to Christopher Talarico's discussion Heating with Tankless Water Heater & Hydronic Air Handler vs. Gas Furnace
"Nice posts Steven and Eric.   Scale on my combi is a recurring problem.  Attaching…"
14 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service