You still need fees or inflation because you can't force everyone to install a miner-heater. Some people will refuse. Some people will not upgrade it after 5 years. Some people will want to mine in another fork / altcoin.
So the fee/inflation is important to pay the additional cost of the miner-heater, and to encourage people to upgrade it.
So the fee/inflation is important to pay the additional cost of the miner-heater, and to encourage people to upgrade it.
I've seen a few similar projects before. For example https://techcrunch.com/2018/03/08/qarnot-unveils-a-cryptocur...