Comparison of boiling points between 2‐butanol and isobutanol

Which has higher boiling points among butan‐2‐ol (**1**) and 2‐methylpropan‐1‐ol (**2**)?


[![1: 2‐butanol; 2: isobutanol](https://i.stack.imgur.com/yRToS.png)](https://i.stack.imgur.com/yRToS.png)


I know that branching decreases the boiling points, but I want to know how position of substituents affects the melting (m.p.) and boiling points (b.p.). Google search only resulted in the b.p. of isobutyl alcohol listed in [Wikipedia](https://en.wikipedia.org/wiki/Isobutanol): 107.9 °C.


