Lol miner had been proven a while back that is not profitable, let alone as steady income when your electricity is high. Look at the breakdown.
You bought miner for x price
You have to run your miner for y months in order to have your ROI
You have to pay for the electricity for z months as long as your miner is running.
You need to allocate w worth of maintenance in order for your miner to run smoothly.
With these, how can you have a steady income? When will it start? As long as the cost of all the expenses had not been met. You can never say the incoming BTC is an income. It is just a partial return of your investments.