"All electrically resistive heating infrastructure in the world should be replaced with hashrate heaters." 
Discussion
Yeah, but electricity is not the only cost. There's also the wear and tare on the hardware. You have to consider the prive and longevity of both devices.
Same consideration for other HVAC equipment. How would an ASIC be different?
Heat pumps use 1/4 of the electricity vs resistance heaters
Correct. And?
Miners= Equipment cost + 100% electricity cost
Heat pump = Equipment cost + 25% electricity cost
Question is does BTC mined = 75% electricity cost
It doesn't matter. BTC > 0 and electricity cost can vary. Ditch the pubCo miner suit mindset.
Gonna guess you donāt handle the monthly bills for your business. This thinking does not apply to real world applications.
It's not about being greater than zero. It's about being greater than the price you can buy it at or sell it for. It doesn't make sense to spend more time and effort to build something you can buy for much cheaper. Especially if that something is fungable. I get spending $150 omln fabric and other materials to sew a dress that you can buy for $30 because then at least you have a unique dress. Bitcoin is the same whether you buy or mine in.
The answer to that question lies in the last sentence of the comment you're replying to.
Whats the price and longevity difference between ASICs and normal heating elements?
Find out. Bruh, I'm not google. And even if I were I have no idea which specific heating units and bitcoin miners you use... I don't understand the confusion here. Find out the prices of each, find out the average longevity of each, do the math and compare.
If you ask "what math" next, I'm giving up on humanity...
Also, find out the heating effiency between each unit. Measure how many degrees each unit raiaes the temperature compared to how much electricity it eats. (if heater is using another fuel also, like gas, factor that in). Basically: how many degrees per dollar or whatever unit of fiat you use locally. I know electric heaters are 100% percentbefficient (yes really). Idk about the BTC miners. I would imagine it's not 100% bc some energy is used for the calculations, but the diff might be megligible.
So thing to consider: price of units, longevity of units, how much actual heat you'll get per $ of fuel/electricity. And after that seebif it all would be worth it: as in will you still runa good chance of spending less $ to mine a bitcoin than you would just buying it outright at an average pricenof it nowdays (you could also try average forecasted price for however long you think it'll take you to mine one, but thats iffy because there's a netural tendency to be optimistic about the future price of something you have an emotional investment in). Then there's one-time setupncosts.
Also, you may want to think about the non monetary costs of the set up: convenience. Where are the units going to be? Are they going to get in the way? Will they be loud and annoying? Etc.
Iāve been doing exactly this to keep heat on an unoccupied home on my families farm all winter. Instead of the electric furnace, I ran a miner. Working great!
How's the cost tradeoff?
Only slightly more than the furnace would have been, because the miner is running 24/7 and itās not set up to adapt to changing temps. In effect itās a ādumbā heater. I tuned it down to about 80% draw and thats been a good balance. Now that itās warming up, Iāll be tuning it down again soon. No need to heat the house above 60 degrees when itās unoccupied!
Paying for the electric out of pocket and holding the BTC generated.
Epic!
The real question for me is whatās the value of the BTC you mined? Thatās where this set up makes sense or not.
That's a truetrue
yes
that includes water heaters, washing machines, air heatersā¦
Would it just be off in summer?
What is the name of metal that book?
I started running miners back in 2016 in an old house. I put them in my garage in the winter because of noise and piped the heat through a duct into my basement. It kept the garage above 50f, even when extremely cold outside. I would measure the heat coming through the duct in the basement and it was consitently above 78f which was warmer than the thermostat on the HVAC.
As mentioned earlier, heatpumps are more efficient and obviously the capital cost is far higher for miners; a chunk of metal just tends to be cheaper than fancypancy silicon.
That said, mining hardware is weird in that they can just become worthless real fast (in how they are priced it is just a leverage on BTC basically, and as a result it is hillarious people got loans based on those machines but i digress), so perhaps getting miners at a well timed moment for dump prices might, maybe, do the trick.
Then there also is a difference in how much space things take up, complexity (failure rates,repair costs)... all in all it is maybe a nice fantasy but as a general statement i will conclude that its bullshit. Especially because the asshole who wrote this had the balls to say it provides free sats, thats just a straight up lie.
Oh and given it will be old shitty hardware, in terms of hashrate its going to be inherrently marginal, at least for now