The Rotorua group makes up a part of a larger New Zealand crew heading across the Tasman.
"They are all very keen to go on deployments. Most of the people in New Zealand who are involved in rural fire or belong to forestry organisations with these skills want to go."
McInnes said the men wanted to use their knowledge and experience to help.
They will take their own personal gear, but everything else will be provided for by Australia.
He acknowledged the toll it had on families while their loved ones were away and said there were systems in place to keep families as informed as possible.
Mcinnes said there could be concerns about rural fires around Rotorua with the increased temperatures and wind picking up.
"In the rural sense, it's the busiest time of the year.
"It's a prime opportunity to remind people to be vigilant."
The firefighters headed to Tasmania include five from Fire and Emergency New Zealand (FENZ), five from the Department of Conservation and 11 from forestry companies.
FENZ national manager rural operations John Rasmussen said the firefighters were going into extremely tough conditions.
"They must be physically and mentally fit."
A seven-person team fly out today followed by 21 remote area firefighters tomorrow. This will be the 23rd time New Zealand fire personnel have been deployed overseas since 2000; the 12th time to Australia and third time to Tasmania.
Rasmussen said FENZ personnel were held in high regard internationally, following the August 2018 deployments to Canada and the United States and the deployment highlighted that.
About the Tasmanian fires
Fires have been burning since late December following a heat wave and period of lightning strikes and high winds.
Fires are burning across 20,000ha of steep, remote mountainous terrain, known as Gell River.
The Gell River region experienced more than 4000 ground impacting lightning strikes on January 14 and 15 that started more than 70 fires, 50 of which are ongoing.
High wind last weekend is expected to be followed by extreme temperatures this week