She said the relocation of the library had served as the "catalyst" to get free entry over the line, and added the council had already received plenty of positive feedback since the announcement.
Napier City Council community services director Antoinette Campbell said removing the entry charges was a great decision and eradicated any barriers for those wishing to freely move between the two facilities.
"It opens up the MTG, which has sometimes struggled to attract the breadth of the community, to a completely new audience. It's an entirely appropriate decision and should be popular with the community," she said.
The council first began looking at alternative venues for the library after a detailed seismic assessment found two administration buildings fell well short of New Building Standards (NBS).
Ms Campbell said the MTG was chosen as the most cost-effective option and council was now looking into other income-generating opportunities to offset lost revenue from entry fees.
"And there are potential efficiencies from being housed together - such as lower power bills."
Ms Vodanovich said she was looking at making the current "discrete" donation boxes more visible for those who wished to donate to the now-free facility.
Having hosted more than 2000 people on free museum days, she said it was expected there would be plenty more people through the doors.
"We've noticed the feedback from people who come into the buildings is really, really positive.
"Yet we still have people who haven't come in who have old perceptions of it. I think taking the entry fee away will hopefully get those people in to see how much we've changed."
Open 10am to 5pm Monday to Sunday, every day of the year apart from Christmas, MTG Hawke's Bay will be free for all as of Monday, October 2.