> I already have an rtx gpu. It nets about 8$ of eth a day. Uses 250w. So that's around 1$ of power a day. And enough wattage to heat my office. So I can get paid to keep my room at a nice temperature. This is why I mine now

Unless your office is the size of a closet, that doesn't sound like it's enough to provide all of its heating needs (at least according to the formula of the website I linked).

It's certainly practical to provide to exploit heat generated by computers to partially heat a space, but I don't think it's practical to use silicon as the main heat source.

Using adsorption chillers [0] you can use the heat to also cool down your office.

[0] https://www.technologyreview.com/2011/03/30/196054/using-hea...