Your last generator Maintenance Run

   / Your last generator Maintenance Run #7,381  
in another thread story posted of neighbor in New England who had whole house generac put in,
installer aimed exhaust in direction of Bilco door, CO count in house 250.
CO sinks I believe so I guess it could go down the steps.
one more thing to remember, don't exhaust near basement steps.

CO is actually slightly lighter than air (0.967 the density of air). As such in a static space the CO will rise, but it doesn't take much movement at all to keep them mixed.

Being aimed at a bilco door wouldn't matter unless there was poor sealing and a negative pressure behind it.



Air = ~79% N₂ + ~1% CO₂ + ~20% O₂

Roughly speaking, C=12, N=14, O=16 and for gasses you can pretty much compare the atomic weights; in this case air ~28.96 vs CO ~28.

Propane on the other hand is C₃H₈ = ~44 which is significantly heavier than air.
Radon gas is 222, super dense!

(all the above are rough numbers and the relative densities assume the comparison is performed at the same pressure and temperature; STP for example.)
 
   / Your last generator Maintenance Run #7,382  
CO is actually slightly lighter than air (0.967 the density of air). As such in a static space the CO will rise, but it doesn't take much movement at all to keep them mixed.

Being aimed at a bilco door wouldn't matter unless there was poor sealing and a negative pressure behind it.



Air = ~79% N₂ + ~1% CO₂ + ~20% O₂

Roughly speaking, C=12, N=14, O=16 and for gasses you can pretty much compare the atomic weights; in this case air ~28.96 vs CO ~28.

Propane on the other hand is C₃H₈ = ~44 which is significantly heavier than air.
Radon gas is 222, super dense!

(all the above are rough numbers and the relative densities assume the comparison is performed at the same pressure and temperature; STP for example.)
the article I read blamed the Bilco door. ??
modern doors have seals, I grew up with ancient Bilcos that didn't. All the coats of forest green I painted that thing 60 years ago.
I have oil heat at home and one CO detector is near the oil burner, one in living room and one in bedroom.
dying in my sleep sounds fine but not by this.

thanks for the science, good to know.
 
   / Your last generator Maintenance Run #7,383  
Started second pull... With the storm tonight, it seemed like a perfect time to verify.
IMG20250314102035.jpg
 
   / Your last generator Maintenance Run
  • Thread Starter
#7,386  
Started second pull... With the storm tonight, it seemed like a perfect time to verify.
View attachment 3045775
Testing Done - Check. Now, grid will stay up, no problem, and storm will pass you by..... :cool:

I love those wheels. Most factory wheels are useless outdoors.

In the Tech World (and elsewhere....), First Mover Advantage..... you get to enjoy (only briefly in Tech) a price-premium for a unique product.....

Thinking about that ^, while having a coffee-break..... In Canuckland, you'd think that The Wheel had just been invented, if you ever go to buy a decent equipment wheel.....

Rgds, D.
 
   / Your last generator Maintenance Run #7,387  
i think we all like those big wheels, what a good idea
maybe having one that locks?
cheesy wheel on my gen almost fell off
 
   / Your last generator Maintenance Run
  • Thread Starter
#7,388  
It is described as an effluent pump, so mag-couple might (?) make sense..... spec-wise, this 1/2 hp one is rated to move something like 1000gph more than it's smaller brother - in my case, that capacity is welcome.

Rgds, D.

Knock wood, primary sump-pump is behaving/running properly.

Remembered today to finally check my high-water alarm - no noise with leads in-water. 9v battery OK. The sense leads look like old twin-lead TV wire, but solid copper. < Fortunately, clear insulation..... so I could see oxidation on the first 3/4" of the leads, under the insulation. Stripped the ends, cleaned oxide, now squawks like it should..... I'll hit the ends with Termin8r spray (No ox), before it goes back over the pit.

Rgds, D.
 
   / Your last generator Maintenance Run #7,389  
My sump tank uses a float for the alarm
 
   / Your last generator Maintenance Run
  • Thread Starter
#7,390  
My sump tank uses a float for the alarm
Nice to have that built-in. Won't matter @ your place (auto-standby gen), but is that alarm DC backed-up ?

Rgds, D.
 

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