Adam Křižka

Heatpunk & QA Engineer @Braiins

[Braiins @Braiins]

The same feature that regulates heat in this house also protects hardware in large mining operations during extreme summer conditions.

Custom firmware means better hardware protection, higher uptime, and more bitcoin.

Get ready for summer heat with Braiins OS ☀️

[Adam Křižka @AdamKrizka21]

@KukiAirani682 @Braiins This is only for heating, off during summer, Im using AC cooling during summer. @KukiAirani682

[Adam Křižka @AdamKrizka21]

@LongDstRunner @Braiins Yes! In hashrate heated sauna!

[Adam Křižka @AdamKrizka21]

@HalcyElon @Braiins @EliNagar Nothing is that comfortable as warm floor and bare foot 😀❤️ but this is the way.

[Adam Křižka @AdamKrizka21]

@Wattoshiapp @AndreasKulvik Love your content! @Wattoshiapp

[Adam Křižka @AdamKrizka21]

@Wattoshiapp @AndreasKulvik Not yet. Balancing income in alpha testing for this small houses AFAIK. But not relevant with this small actual power. But they prefer solar and batteries to be in program. Yes HASS way to go ❤️@Wattoshiapp

[Adam Křižka @AdamKrizka21]

My miner cost $1500, wait for the blog. There is more.
Kwh of heat = kWh of electricity, 100% efficiency.
In my case I'm in central Europe full of renewable expensive energy it's. $0.22kWh = super cheap. I have no solar offset. There is not even 15y ROI. maybe better if I will do it myself, but I have to better things to do. BTC does better %%% always. Also btc heating was fun. Everybody does solar even it does not make sense if over production is not burn in btc miner. Still early! @Peak_Ascent

[Adam Křižka @AdamKrizka21]

@ZoeRoberts53 @KristianCsep https://t.co/i75jHCvcB7

[Grok @grok]

Challenge accepted. Yearly: 4.5 MWh (4500 kWh). Elec cost $0.22/kWh = $990.

Miner: 29 W/TH/s = 29 kW/PH/s. Total: 4500/29 = 155.17 PH-hours.

2025 avg hashprice $45/PH/s/day (data range $35-70 from Hashrate Index/Luxor reports).

Revenue: 155.17 × ($45/24) = $291.

2025 avg BTC price $95k (peaks $126k, end ~$87k, Q1 ~$93k).

BTC earned: ~0.0031 BTC.

Net heat: $699 + 0.0031 BTC. Miner crushes heat pump economics here.

[Adam Křižka @AdamKrizka21]

@prescott @KristianCsep Seasonally it's takes 4,5MWh you can calculate reward. Check it here
https://t.co/i75jHCvcB7
@prescott

[Grok @grok]

Challenge accepted. Yearly: 4.5 MWh (4500 kWh). Elec cost $0.22/kWh = $990.

Miner: 29 W/TH/s = 29 kW/PH/s. Total: 4500/29 = 155.17 PH-hours.

2025 avg hashprice $45/PH/s/day (data range $35-70 from Hashrate Index/Luxor reports).

Revenue: 155.17 × ($45/24) = $291.

2025 avg BTC price $95k (peaks $126k, end ~$87k, Q1 ~$93k).

BTC earned: ~0.0031 BTC.

Net heat: $699 + 0.0031 BTC. Miner crushes heat pump economics here.

[Adam Křižka @AdamKrizka21]

@FartedGuy @KristianCsep Check some here https://t.co/i75jHCvcB7
@FartedGuy
I can get neighbors electrical bill but it's useless. Non of neighbors measure only heat bill. Different house size and sustainability. Some drives to work
Some stay home working and testing other miners 😀

[Grok @grok]

Challenge accepted. Yearly: 4.5 MWh (4500 kWh). Elec cost $0.22/kWh = $990.

Miner: 29 W/TH/s = 29 kW/PH/s. Total: 4500/29 = 155.17 PH-hours.

2025 avg hashprice $45/PH/s/day (data range $35-70 from Hashrate Index/Luxor reports).

Revenue: 155.17 × ($45/24) = $291.

2025 avg BTC price $95k (peaks $126k, end ~$87k, Q1 ~$93k).

BTC earned: ~0.0031 BTC.

Net heat: $699 + 0.0031 BTC. Miner crushes heat pump economics here.

[Adam Křižka @AdamKrizka21]

@TresNudillos @KristianCsep Same for heat pumps. I've averaged $12500 only for outdoor unit and indoor unit. And pluming on side of pump. Boiler or accumulation tank is discussible. Some pump comes with small one in indoor unit some not. Bigger better also preserving COOP of pump.

[Adam Křižka @AdamKrizka21]

I was not including price for floor tubes, manifold thermostats, work of plummer. Since it's used same for any other heating. Calculated costs are the only differences as for source of heat. Then should I include also different types of cement in floors? Floor tiles etc. That would be for some architect or house projector. We mine sats 😎 @TresNudillos

[Adam Křižka @AdamKrizka21]

@grok @TheGurkenSoup @KristianCsep @dansemperepico Check it here @9FigureSats

[Adam Křižka @AdamKrizka21]

Correct I've started on spot prices with home assistant monitoring cheapest 6hours in a day (day ahead) and heating in these hours, combine with distributor "low hours" predicted low demand. But I've move it to fixed 3year contract (cheaper then cheapest 6hours) . Winter is hard on spot prices it's call OTE electricity market here in central Europe. Also loosing comfort on spot. @Wattoshiapp

[Adam Křižka @AdamKrizka21]

@grok @TheGurkenSoup @KristianCsep @dansemperepico Did you already train AI on my blog post? 😅 @KristianCsep

[Adam Křižka @AdamKrizka21]

@grok @TheGurkenSoup @KristianCsep @dansemperepico Getting better ❤️ I've used Braiins Pool hashprice and so it's 50sats/ths/day so very close, why did you didn't know that few weeks back when I wrote that upcoming blog post?

[Adam Křižka @AdamKrizka21]

@grok @TheGurkenSoup @KristianCsep @dansemperepico Let's try but Ai always fail. Miner eff is 29w/ths. Calculate it for my yearly consumption with price of electricity $0.22/kWh. Take 2025 yearly average hashvalue and average btc price and write it here all!

[Adam Křižka @AdamKrizka21]

@SteveW928 @KristianCsep Correct! Old Gen hydro miners cost from $1k plus ship and tax, depends. Ive averaged heat pumps in my area. Only heat pumps air to water, of course. Ground heat pumps more efficient in colder climets and 3x more expensive. All depends on house heat loss. @SteveW928 blog coming

[Adam Křižka @AdamKrizka21]

@ubezpiecz1 @KristianCsep For who? You need to combine electricity and hashprice. And capex. Check https://t.co/UzaLnf6QhY

[Adam Křižka @AdamKrizka21]

This is all wrong. Mandatory is the thermal loss for house. So so much individual based on the type of building and size. Very efficient house need only 3,5kw thermal loss in coolest temps - 10C in czechia. My yearly energy consumption for heating and hot water is 4,5MW, check original post. The heat pump is never economical in machine lifetime. For my electricity price.