The xr80 space heater failed after just 2 years of age but of little use. Filled workshop with fumes making it impossible to work even with the doors open. Machine mart technical support was of zero help. I had to diagnose and repair myself. What is shockingly bad is that I left a one star review for the heater on the machine mart website and it was never published. Machine mart only allow good customer reviews to be published. Reported machine mart to trading standards. Reason 1 for selling a diesel space heater which is unsafe to use and poor customer support. Reason 2 filtering out any negative 1 star customer reviews for the heater and only publishing 5 star or high rating reviews making it appear as it's best selling product. Scandalous behaviour . Hopefully the trading standards company review will provide change's to protect future customers.