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Animals, skeletons, and creepy home inspection stuff 2020

There is zero educational content in this post. It’s all gross or creepy stuff we’ve seen over the past year as home inspectors.


This is the remains of a bat, found in a furnace return plenum.

Bat in duct.jpg

We have plenty of photos of bats at soffits and in attics, but that’s typical. This is a bat in an unusual spot; it’s just sitting on the grass.

Bat on the ground.jpg

Here are the remains of a bird that found its way into a furnace.

Bird in furnace.jpg

Something found its way into the air filter and made one heck of a huge home in it.

Dirty air filter.jpg

We’re pretty sure someone put this here to startle us off the roof.

Doll in window.jpg

And someone surely put these rubber snakes here to scare us off the roof.

Snake at eave.jpg

Someone tried sealing the intersection between the walkway and the wall with a garter snake. Caulk would have worked better.

Garter snake caulk3.jpg

We found this monster spider inside someone’s HRV.

Spider in HRV.jpg

Havnohart trap.

Have-no-heart trap.jpg

Several salamanders simultaneously swimming in a sump basket.

Lizards in sump basket.jpg

Here’s a salamander in a crawl space.


Squirrel remains in an attic.

Remains of something.jpg

Sewer Joe showing off. Thank you for all that you do, sir.

Sewer Joe.jpg

And this collection wouldn’t be complete without a bunch of skeletons stashed in various attics. It’s always creepy to find these. Why don’t people store these in closets, where they belong?

Skeleton 2.jpg

Fall maintenance checklist for Minnesota homeowners

Fall is here, but it already feels like winter. This blog post is coming a day earlier than scheduled due to the snowstorm that's in the forecast for tomorrow. If you haven't finished your fall maintenance list, get on it immediately. To help you remember everything you’re supposed to do as a Minnesota homeowner, we’ve compiled a comprehensive list of fall maintenance items.

We’re also including last year’s podcast on this topic, which you can find on our home inspection podcast page. For this podcast, Tessa and I discussed fall maintenance chores while Bill mostly complained about how much work it is to be a diligent homeowner.



  • Disconnect your garden hoses. If they're left attached, even to a frost-free faucet, you have the potential for a burst pipe.

  • Drain the water out of your faucets. See How to Prevent Your Outside Faucets from Freezing.

  • Remove any pond pumps and store the pump in your basement in a 5-gallon bucket filled with water. This will help to prevent the seals from drying out.

  • If you have a utility sink in your garage, drain the water out of the pipes and dump some RV anti-freeze into the drain.

  • If you have a lawn sprinkler system (aka "irrigation system") it needs to be drained and blown out with compressed air. Hire a pro to do this.

    • Side note: If you hire a pro and they try to tell you that your existing system also needs to have the backflow preventer tested, please check out what the real requirements are for yourself: New backflow preventer testing requirements for Minnesota. Only new installations must be tested annually.

Here's a video of me explaining this stuff:


  • Clean the combustion air or makeup air intake vents.

  • If an air exchange system is present, such as a heat recovery ventilator (HRV) or energy-recovery ventilator (ERV), clean it. Regular maintenance items for an HRV include cleaning the exterior intake, the filters, and the core. See HRV maintenance.

  • Clean the clothes dryer duct. The damper at the exterior should move freely and close properly. See dryer duct maintenance.

  • Check the bathroom and kitchen exhaust dampers for wasp nests. Nests in these terminals will prevent the dampers from openings. See Bath Fan Terminal Inspections.


  • Clean the soffit vents. These can get clogged up with lint, dust, insulation, and paint. They’re located under the roof overhangs.

  • Check the roof vents for bird nests. They can typically be seen from the ground.

  • Clean the gutters after all the leaves have fallen. Even if you have gutter guards, you should make sure that your valleys aren't blocked.

  • If the downspouts or sump pumps drain into an underground system, re-direct them to drain to the ground surface when feasible. See Sump Pump Discharge.

Here's another video of me explaining this stuff:

Air Conditioner

  • Outdoor covers are NOT necessary. If a cover is used, it should be the type that only covers the top, not a full enclosure.

  • If the furnace or water heater vent blows exhaust gas onto the air conditioner, a plastic cover can be used to shield the air conditioner from the corrosive exhaust gases.

  • Don’t cover heat pumps. Heat pumps are not common in Minnesota.

General Exterior

  • Seal any gaps around the home 'envelope'; check for loose or dried-out caulking around pipes, ducts, faucets, air conditioner refrigerant lines, etc. While this is the most generic piece of fall maintenance advice, it's still smart to do this before winter.

  • Replace any damaged or worn weatherstripping around windows and doors.

Smoke and CO Alarms

  • Smoke alarms should be located inside every bedroom, and one in a common area on every level.

  • If you don't have photoelectric smoke alarms in your home, add them. This is a big deal. If you don't know what type you have, you probably don't have photoelectric smoke alarms.

  • CO alarms should be located within ten feet of every sleeping room, but not in furnace rooms, kitchens, or garages.

  • Replace the batteries in your smoke alarms and carbon monoxide alarms and test them using the built-in test buttons.

  • Check the age of your smoke and CO alarms; smoke alarms are good for up to ten years, CO alarms are good for between five and ten years. If they’re any older, replace them.

Furnace or Boiler

  • Have a professional furnace or boiler tune-up performed annually. See Are Annual Furnace Inspections Really Necessary?

  • Replace the batteries in your thermostat. If your thermostat fails while you're on vacation, you might come home to a winter wonderland.

  • Clean or replace the furnace filter. This should usually be done every one to three months, depending on the type of filter. The arrow on the filter should point toward the furnace.

Here's one more video of me discussing air conditioners, heating systems, and smoke alarms:


  • Have the flues professionally cleaned on any wood-burning fireplaces if they get used regularly; every 30 - 50 fires is a good rule of thumb.

  • Clean the dust out of the bottoms of any gas fireplace inserts.

  • If you have a gas log installed in a wood-burning fireplace with an adjustable damper, make sure there is a damper stop installed to prevent the damper from getting closed all the way.  See My Beef With Old Gas Log Fireplaces.

Want this in a pdf? Huge thank you to Roger Tetzlaff for compiling this list into a printer-friendly format.

Author: Reuben SaltzmanStructure Tech Home Inspections