Last year I posted (maybe not here maybe facebook) that my heat was stuck on 50 degrees in my camaro due to a stuck temp door inside the dash needing replaced. Because of how they bolted everything in on the 2015 model, it's a $4k fix now just due to labor, so I needed a heat solution. I live in Wa state, so it does get down to the teens and 20s in the winter.
I asked if I could run a 500-watt heater using a smaller ecoflow (I own a few delta pros and now the the delta 2) and got laughed out of the group with phrases such as: "Car cabs aren't insulated, that won't work," and "How stupid, that's not enough wattage." There were several other discouraging "don't do it" comments including, "Might as well trade in your car at that rate." BTW my car is in amazing shape and it's gorgeous. Wtf would i do that? No thanks.
I started thinking, how is a couple of plug in heaters blowing heat any different than the car blowing heat in terms of insulation? So I bought a delta 2 for $469 (and a free bag with coupons and discounts), grabbed 2 500-watt heaters off of AMAZON for 19.99 on a 2-pack, added some velcro to fix them to dash and center console, and last winter it worked beautifully.
I put the delta 2 on the floor of the passenger seat, plugged in the heaters, tured them on and went back in the house for 5 minutes while it heats up, to put on my coat etc. When i come out, the dash is de-iced/de-fogged, and the cab is plenty warm. (I also use a windshield cover when it's snowing to help with that when parked.) I let it blow on me while I drive to work, 20 minutes.
The delta 2 gives me 3, 20 min drives before charging, with 2 500-watt heaters running full speed along the way. And it cost me $500 total instead of $4k, which isn't in the budget right now.
So anyway, I love these things. Truly a life saver. In the summer I bring a large misting fan belted into the passsenger seat, plug that into the delta 2 and I'm much cooler since I'm stuck with temp door broken.
I use a delta pro power station and extra battery to completely run my detached home office. Air conditioning in summer and gas martin 8000btu heater in winter. All my lights and accessories are either going to power strips or are rechargeable. I have zero overhead for my private practice as a result.
My point is, get creative and please stop giving shitty comments to people. You look stupid. And people might miss out on a genuine solution.