An obscure boutique called Bunnings has, from time to time, great deals on all sorts of imported heaters. No doubt lots of other similar places do as well. BUT - and it's a REALLY BIG BUT - usually they are single shipments from overseas suppliers. Once that shipment goes, that's it. In 3-4 years time, when the whatsit collapses/breaks/rusts out/disintegrates, it's mate, they're all gone, no, we don't carry spare parts. Then you're back getting a great deal on an imported heater ....
We replaced a massive Irish peat-burner slow combustion stove after a couple of decades with a wood heater that was AUSTRALIAN MADE. Not just out of patriotism, but so we had a bit of a chance of getting parts and service down the track. We got a NECTRE from South Australia because they looked to have the widest distributorship, ie best chance of staying in business. Great phone advice, including honest assessment. (We got the "Baker's Oven" and the bloke on the phone said "The thermometer? Hopeless! Ignore it and just experiment!" which saved us a heap of wood and worry) and pretty bulletproof build. Sure there are plenty of good Aussie choices out there.