For when I get my 5KCSTQ this summer (fingers crossed), I was planning on
installing a differents sort of block heater. It's a heater and a pump in a
seperate unit. You hook it up to the heater hoses. When the ignition is
turned off, engine cools off, thermostat closes, heater valve closes. Hook
up the pump before the heater valve and your all set, it will just heat up
the engine. Oh, one last thing, I believe its also thermostatically
controlled. 500W, 800W, 1500W. Around $40.