6G Celicas Forums

My job requires me to be on the road a lot (96 7afe celica). Mostly in the winter time. You could prolly tell if you saw the interior... Mini fridge. 10 inch android tablet and mobile hotspot for internet. 1000 watt inverter. Isolated accessory battery.. I usually just put the seat back, watch netflix and sleep in the car. If I shut the car off I only have heat for a few minutes obviously, and I dont want to leave it running because of exhaust... I want to install a little water pump on the heater hose or radiator hose depending on how the flow should work. Could anyone recommend a pump? And where should I install it? This will only be ran when the engine is off.. Sorry for the strange question but google turned up nothing.