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#onstorm

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That's quite a long and organized front coming our way, presumably bringing us the big warm-up to 16C tomorrow.

Might be rumbly overnight as it comes through though. Hope it's not doing anything violent. Just hitting Toronto now, no?

The snow keeps coming down in Toronto. The main roads are pretty clear, but many side streets and sidewalks are a snowy mess.

I’m thinking of everyone who is trying to traverse them, especially those with a wheelchair, cane, stroller, or heavy load to carry on top of the slipperiness of it all.

These streets are so not cut out for anything other than able-bodied adults who can walk quickly at the moment.

I've seem a few posts here, reminding folks to check their furnace intake and exhaust pipes are clear of snow. Something that people here may not know, though, is that the pressure regulator on a gas meter *also* has a vent. This vent *must* be unblocked to ensure that the regulated pressure inside your home remains the same; if the vent is blocked, the pressure can increase inside your house, possibly leading to leaks, fire, or even an explosion!

If you're curious how... in the most common kind of pressure regulator that I'm familiar with, there's a flexible diaphragm that is connected to a spring. The spring applies a constant pressure to the diaphragm, and the gas flowing through the regulator applies a variable pressure to the other side. As the pressure on the supply side increases, the diaphragm is pushed up, which itself is connected to a lever and valve. Thus, as the diaphragm is pushed up by increasing gas pressure, the valve closes, reducing or stopping the gas supply into the house.

However: this only works if the "top" part of the diaphragm (with the spring) isn't sealed; if it was, the air inside the top would exert a force as it was compressed, counteracting the gas pressure, and the valve wouldn't close as quickly. Thus, the spring side of the diaphragm is vented to the atmosphere, ensuring that the only forces on the diaphragm are from the spring and the gas itself.

If the vent becomes blocked, the air sealed in the spring-side will, as mentioned above, exert a pressure, reducing the movement of the diaphragm and resulting in a falsely-low reading for the incoming gas pressure, and thus a higher-than-normal "output" pressure into your house.

Ensure your gas meter is kept clear of snow and debris!

That’s quite the snowfall, I think we’ve got some solid 30cm since yesterday and it’s still snowing. Snow on my backyard is now up to my knees with all the accumulation.

I mean, for Ottawa and Quebec folks that’s nothing but last winter in Toronto we got barely a coating, just a ton of rain. This feels like an actual winter.