Tim Tebow will be the first to tell you that when it comes to framing a wall or wiring a kitchen, he’s utterly clueless.

But when it comes to competing, motivating contestants and pushing them to go past their limits as he does on FOX’s Thursday home renovation competition series “Home Free,” this Florida-raised farm boy and one-time Heisman Trophy winner is in his element as the show’s co-host.

“Because none of us know how far we can really go until we test the limits,” he tells Zap2it, “and then we test them again and then we test them again. And you find out, ‘Wow, I might be a little bit stronger. I might be a little bit more mentally tough. I might have a little more courage than I thought.’ Sometimes we just have to have someone bring that out in us, and sometimes it’s competition, sometimes it might be love.

“But it all goes back to your ‘why?’ ” the former NFL quarterback continues. “And when the stronger your ‘why?’ is, the more you can accomplish.”

Now in its second season, the series takes a slightly different approach to Season 1. Here, 11 contestants compete to win a home for their personal hero and $100,000 for themselves. They help co-host and contractor Mike Holmes and his crew build an entire neighborhood on Home Free Boulevard from the ground up. Each time someone is eliminated, they get to give their home to the hero of their choice. The last contestant standing at the end of the season gets the money.

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Tebow, a devout Christian who recently made news when he comforted a family after one of their own suffered a medical emergency on a flight from Atlanta to Phoenix, loves the fact that this show is more about giving than receiving. And if he can get more people to think that way, all the better.

“If someone’s out there for themselves and they’re like, ‘Well, I’m just trying to win a house. I know I already won one of these houses,’ they’re not going to try as hard,” he reasons. “But if they have a hero who is counting on them, who they want them to be proud of their efforts and so much is riding on it, their ‘why?’ is so much deeper and it’s so much bigger and so they’re going to give so much more to try to be able to make their hero proud and give everything for their hero. And that’s why it was so cool because when you’re competing for something bigger than yourself, it’s so much better.”