I read this in the morning and didn't follow to the website. I like it overall it's a neat silent heat option for an office space or something. A larger design with the ability to heat rooms would be neat to see. The price is a killer for most though like Phil mentioned - 1800 USD is what I assume it was saying.
When it comes to being a heater - the efficiency doesn't really matter. Keeping the noise down is the biggest concern. A power hungry beast just allows more heat into the room, if you can downclock it through settings then it can be tweaked to comfort. That's they type of model I would want to see, a 5 month heater (depending on location) with the added benefit of mining BTC.
What are you specifically interested in? Would you like to see how it heats up and heats the room?
As for price, yes it is a killer, but for this moment R&D plus hardware the price cannot be lower than $1 800... So a good mood and a batch for the production of 1000 convectors guarantees the cost of Hotmine CM-1 at $1 600, and for the batch of 10 000 convectors - $1 400.
We will try to display the convector as much as possible in the work: the room temperature, the warm-up rate of the device, as well as the room heating in the next video on our YouTube channel. A link to the video will also be published in this thread.