For all you needing to take the chill off out in your shop this may help. I installed this exact model a couple winters ago in my 20x20 garage/shop. It does require 240 service, but it is well worth it. This baby will have you sweating in no time if you turn it up to high.
https://www.mmtoolparts.com/store/porter-cable-on-off-switch-5140059-14