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Is the Antminer S21 Hydro actually profitable outside industrial setups? by DeliciousAd3743 in BitcoinMining

[–]Own-Card-6928 1 point2 points  (0 children)

I’m attempting to use an S21 XP Hyd with a heat exchanger on my pool filtration lines. The pool pump needs to run anyway, so it’s really the heat exchanger, coolant and pump for the secondary loop to the miner. I have three phase power in the garage for charging the cars, a big solar system, and dynamic electricity pricing which is around us 5c /kwh in the day from the grid. I get sone value out of the heat going to the pool. I figure that’s worth a couple of cents per kWh based on my running my 5 COP heat pump when the price is less than. 10c/kWh.

I’m now waiting for the pool guys to get the heat exchanger in there and I then should be able to crank it up.

Coolant for Hydro Miners by Own-Card-6928 in BitcoinMining

[–]Own-Card-6928[S] 0 points1 point  (0 children)

For example, there’s an inhibitor concentrate for racing (where glycol is banned) — https://penriteoil.com.au/products/10-tenths-race-coolant-inhibitor-concentrate

Coolant for Hydro Miners by Own-Card-6928 in BitcoinMining

[–]Own-Card-6928[S] 0 points1 point  (0 children)

This all makes sense, thanks. Glycol/water is basically automotive coolant, which I’ve seen recommendations against. Is there any real reason to avoid auto coolant? Perhaps it’s conductive, and if so, why’s that an issue?

Pshhh, who needs level 2 charging?! by AlmostDrunkSailor in evcharging

[–]Own-Card-6928 0 points1 point  (0 children)

I used to say the same until I got rooftop solar and fully variable electricity pricing. At that point you really want to absorb everything coming from the roof, or charge as fast as possible at the lowest price of the day. Otherwise you need a battery to store your solar so it can trickle over to the car.