First Time Driving Through Snow Storm

No heat in the cab should be AT LEAST as effective as just no heat on windshield. Your side mirror fronts iced up, I would bet. They aren't getting any heat on them.

 

No hot air blowing directly on a surface is the big difference that people seem to miss. You can have a warm cab and the windshield will still be cold as long as there’s no direct heat. But what do I know? I’ve only been driving this way since 2004 and I’m not on here complaining about ice building up on my wiper blades.

Freezing fog and freezing drizzle is different, but the OP said he was in a snow storm.

 

Here’s an example. Heavy snow, snow on the front and on the front of the trailer, clear windshield.

 

Do your headlights and the front of your side mirrors accumulate ice? They have zero heat. Why don't they remain ice free?

 

Why isn't the air deflector mounted on the hood or front bumper clear, is there heat blowing on them?

 

Because the air isn’t moving around them. You don’t have snow hitting the windshield directly because of the turbulence of the hood. Please see the pic I attached in my other post.

 

Are you trolling at this point because you don’t know how to keep your windshield clear?

 

I never had this problem with windshield icing with any of my previous trucks. From my Cabovers to my FLD 120's. I have tried no heat to all heat with a couple 12v heaters sitting on dash. I've tried shorter wiper blades and blades with more than 1 blade. Winter covered blades.
Nothing has worked to keep the windshield ice free.
Impossible to run without ice buildup during a snowstorm. People passing or passing others, this gets the spray on the glass. Then it freezes. Or a crosswind puts fresh snow on the windshield and it packs down and ices. Depending on the snow fall, I've had to stop every 30 miles to clean the windshield and wipers.

Above freezing wipers work great.

 

Road spray is my biggest issue. Snowing heavy, 20*, and wet roads, it's a battle. You have no choice but to warm the windshield.

Lonely roads with not much traffic are easier to keep it cleaan.

 

I saw the pic. It's a nice pic. I've seen trucks coming from the snowy area ahead with lots of snow while I drive toward the snowy area. and I've had trucks with very little snow pass me when I look like a snow cone and they just started driving for the day. I'm not trying to argue you out of your opinion or experience. What do you want me to say if I have tried what you suggest and I got different results? I asked how to get your results before I spent a year or so driving out West. I had plenty of time to try every idea suggested. I didn't see any noticeable difference no matter what suggestion I tried. I'll assume I was doing it wrong.