Can i use Portable Car Heater instead car heating system?

[MikeJJ]

Hello to all speakers! So my car heating system are broken a few days ago, and as now the weather is getting cold i need to heating my car inside. So i want to ask here, can i use the Portable Car Heater to heat my car without car heating system? Schumacher 1225 12V 150W Ceramic Heater and Fan or Mr. Heater F232000 ( http://www.gadgets-reviews.com/review/163-best-por... or one of them, Refine list of portable car heaters - just check if you want to advice to me some of them, this is not a mandatory action as the question of how - whether it is necessary to use Portable Car Heater) something like that. So it can replace car heating system or not, or better to repair it ? Thanks!