if they were decent farmers they would not have a problem with the heat,use it for something, i feed my warmed,cleaned air from mine (very small) into my flat and now have under-floor heating and warm air heating,all controlable from anywhere with with internet/mobile coverage.
i pay full cost of my electricity,no mucking about with meters etc and same unit also helps make some cash to pay for itself by having orchids etc in room as well and produce good stock early or out of season so sellable at premium prices,also fresh herbs and salad veg as well as my weed.
kind of thing that would be much simpler,easier and safer if folk could self-produce,i only ever grow 6 plants,3 each for myself and partner.we have not had to do any buying of weed for years now,so no cash to criminals,we smoke all we grow,so no dealing,probably the only cash i have made for criminals are the ones who use hydro bit shops as fronts for their farms etc and i have bought lamps,feed etc from.
legalise self production (3 plants per person) and that would probably do away with 50/75% of the criminality involved.
if legalised,look at the amount of tax they are raiseing in usa + extra taxable profits for energy use and less theft also less house fires (mine is regularaly checked by