"That has become a big problem, a number of people have put in these cheap brands, find that they're pumping out cold air and then they call us for assistance, I believe Japanese brands are the best."
A Canstar Blue survey showed the top six brands included Mitsubishi Electric, Daikin, LG, Fujitsu, Hitachi and Panasonic.
Bullock said a lot of people were switching from wood fires to heat pumps and believed that it was the better option.
"We ripped our fireplace out a year and a half ago and it's the best thing we've ever done."
"I think you'll find with what's going on in the Government, especially with the Green Party that they'll put a 'no fire' period in at some stage throughout the country. It's not a case of if, it's a case of when."