retro fitting the auxiliary heater is it possible

[dazzasgotav8]

Like the title was wondering how much of a job this would be obviously my first snag is my cars a petrol and the heater is a diesel , but if i need to i could always add an extra tank just to fuel the heater , o did i mention ive already brought a load of parts from a breakers yard what can i say it was a bargain who doesn't love one of them , so far ive noticed the mounting brackets are there for the heater as is the plugs for it , just wondering what else wiring wise i need , once i get my phone and laptop talking to each other ill upload a picture of the parts i have me and tech not a good mix LOL .