A consumer buying cooperative tested the effective heating area of 20 different electric space heaters using different wattages. Here are the results. 1. 1510 183

Alright mate, lets do some math!
We are trying to find the height of each hay bale right? So we need to divide the volume by the length and the width... so:
H = (10 2/3ft^3) diveded by (1 1/3ft x 4ft)
H = 2 ft
There are 8 bales of hay mate, so we have to multipy that by the H... so 2x8= 16ft.
Hope this helped!