A 36 LP boiler can run for 12.63 seconds with one piece of peat once it reaches maximum heat. Therefore you need enough peat bog(s) to produce one peat every 12.63 seconds, and a large amount of stored peat to make it through the heatup phase.
Due to the fact that forestry farm output depends partially on setup, power input and sheer luck, I can't tell you any exact number. But try two peat bogs. If it's not enough you can build a third, if it's too much you now have tons of extra peat.
Due to the fact that forestry farm output depends partially on setup, power input and sheer luck, I can't tell you any exact number. But try two peat bogs. If it's not enough you can build a third, if it's too much you now have tons of extra peat.