I would like to start a story about Hotmine company and share the company's developments since 2013.
We've been working in secret from the bitcointalk community the last six years. Well, apparently, it is a time to share a story. I will clarify that in this thread I will post stories/facts by the year, starting from 2013.
As usual, it all started with a few enthusiasts and a rented apartment but for now our team is headquartered in Ukraine and consist of the following professionals:
2 administrative officers
2 electronics engineers
2 programers
1 data scientists
1 power engineers
1 mechanics
2 QAs
2 assemblers
1 sales team members
1 supply chain team members
COMPANY FACTS. 2013
First immersion cooling Bitcoin miner\water heater.
This rack with 5 servers was built on 55nm chips. Each server consisted of 2 modules of 2.5 kW (+-5%) and 2,5 Th/s.
The total capacity was 25 Th/s (+-5%) and 25 kW (+-5%). At that time, the server has been mining 50 bitcoins per day! Impressive isn't it? 
Also we have been starter thread with our current development — convector miner:
https://bitcointalk.org/index.php?topic=5113192.0;
To confirm that we are developers and equipment manufacturers., here is a video from our CEO on the Hotmine youtube channel, which shows the process of developing in slideshow:
https://youtu.be/hS5_Rxk2W04
Also video from our old youtube channel with some parts of 2013 mining equipment:
https://www.youtube.com/watch?v=brDvV50WhZE
As well as some photos that correspond to the videos
Cooling tube development:
Paper board prototype:
Modules:
Original picture with our watermark and few servers in work::
Okay, let's move on.
Hotmine.io company facts. 2014
Immersion cooling Bitcoin miner\water heater v.2
Features:
55nm ASIC chip
81 Th/s of computing power
81 KWt power consumption-highest power consumption per single mining unit for that moment
Module with chips:
Final stage of development:
I would like to note that the company was fully engaged and is now engaged in research and development. There was practically no sales, but the experience remained and the development continues.
Also here is video on youtube with working heater v2(Posting date not saved): https://youtu.be/HhmNJggnRiE.
Same video on the CEO's channel(Saved publication date): https://youtu.be/rOt3dNDvaaE
Videos are shown solely for history. To avoid any questions: new "hotmine" youtube channel is on the "hotmine miner" account, there are just a few videos left on the old account... 
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COMPANY FACTS. 2016
Upgrade kit X5/X6
Solution designed to upgrade the existing S5 miners
(28nm ASIC chips) with last-gen 16nm ASIC chips.
Features:
• 16nm ASIC chip
• 3.6/7.2 Th/s of computing power
• 0.6/1.1 KWt power consumption
COMPANY FACTS. 2016
Immersion-cooling miner / DataTank
Designed to be deployed in a large scale
mining data-centers.
Features:
• 16nm ASIC chips
• 740 Th/s of computing power
• 75 KWt power consumption
• Heat extraction - 75 Kwt per 0.25m2
Here is photo of one working DataTank:
In total 5 date tanks were collected
Video: https://youtu.be/DOmP9gRPvL4
TOP PRODUCTS. WX12
WX12 is an immersion-cooling Bitcoin miner that utilizes the
secondary product of mining - the heat
Features:
• 368 16nm ASIC chips
• 29 Th/s of computing power
• 4.4 KWt power consumption
• Upgradable in case new ASIC technology appear
WX12:
https://hotmine.io/en/catalog/5
TOP PRODUCTS. U6
U6 is an easy-scalable solution for household and industrial Bitcoin
mining
Features:
• 368 16nm ASIC chips
• 29 Th/s of computing power
• 4.4 KWt power consumption
• Upgradable in case new ASIC technology appear
