My Burb is parked outside and used very little in winter....and even in warm weather it's tough to crank over....typical big block. Any real advantage to installing a block heater? Asked two mechanics...one said yes, would extend engine life ultimately...the other guy said no advantage if engine is run frequently. And if I were to install, what is the best heater to get? Oh, yeah. I live at 7000' and winter temps range from 40 above to sub-zero in Jan-Feb. Thanks for your input.