Sunlive received a lot of feedback from our story on the exploding fridge earlier this week - including a link to an article suggesting such explosions are the result of an 'environmentally friendly' coolant.

Firefighters are still scratching their heads about the cause of the explosion that blew apart Gate Pa resident JD Smith's refrigerator early Wednesday morning - blowing out a sliding door and windows of his two-bedroom home.

Firefighters were called to JD Smith's Gate Pa home where his fridge had exploded.

Greerton station officer Steve Wright says they believe a pressure wave was created by a mystery substance.

'It appears to be something they have put in the fridge before they have gone to bed, and it has reacted violently and caused the explosion."

Following our story, Sunlive Facebook user Mike Horan sent us a link to this 2009 UK newspaper article: http://www.dailymail.co.uk/news/article-1210334/Alert-new-wave-exploding-fridges-caused-environmentally-friendly-coolant.html

The article refers to a series of violent fridge explosions that are blamed on a leaking ‘environmentally friendly' coolant.

The theory is leaking refrigerants in the form of isobutane and propane hydrocarbon gases caused the explosions.

Previously CFCs and HFCs were used in fridges but the non-flamable gases damaged the ozone layer and contributed to global warming. There are now more than 300million Greenfreeze fridges around the world.

The shift to hydrocarbon refrigerants has taken place over the last 15 years. They are designed with safety features to ensure the flammable natural gas inside the pipework cannot leak into the fridge.

If it does happen, there is a risk of a powerful blast as the gas could be ignited by a spark when the thermostat switches off.

This is more likely to happen at night when the door remains shut and the leaked gas can build up in the fridge cabinet.

The Scott St blast was shortly after 1am.