Not sure about the california maple but I have burned sugar maple and red maple, as well as sycamore, and ash, also pine. If they are dry, they burn well and hot, but also burn up way faster and I have to watch my fireing time. The sweet spot is dry oak sticks from the straight line saw at my local sawmill. We run a 2x6 with forced air. I keep the firebox full and fire every 5 min just a few pieces on the top. With a small firebox I've found if it goes too long between fireing it dramatically effects my evaporation rate so I set a timer on my phone.
2023 - 38 Gallons - RO broke, Buckets didn't run, rebuilt vacuum pump mid-season, still made good syrup!
2022 - 52 Gallons - DIY RO, 50% less fuel, no late nights in the shack!
2021 - 48 Gallons - new pans, new arch, lots of new taps and tubing
2020 - 32 Gallons
2019 - 27 Gallons