I think the one of the reasons that made the Maytag Gas HOH dryers even slower is when the felt seals were compromised or after years of constant burning pilot light would weaken the high limit thermostat which would cycle it off below the operating temperature. Another contributing factor is if the belts weren’t tensioned properly, it wouldn’t allow to things to run at full speed causing the high limit thermostat to kick the heat off since there isn’t good airflow. Pot metal pulley that allowed for lots of slippage could cause longer dry times as well. The Maytag DE306 I picked up back in 2018 took awhile to dry a load of towels and thought the high limit thermostat was weak after many years of service, turns out someone replaced it with one that was rated for 140F rather than a thermostat rated in the 150F to 160F rating.
The high limit thermostat on my Maytag DG306 kept on cycling the burner off below the operating temperature back in 2020 since the cycling thermostat wasn’t really working and would just cycling off the high limit thermostat instead. Ended up replacing the cycling thermostat with a L120-10 low heat thermostat, now you think it outs take longer to dry with a lower temperature, nope, seems to be a bit quicker since I observed carefully since the front of the cabinet is quite warm in the first 40 minutes or so when drying towels and heavy cottons then gradually begins to get cooler and cooler right before the cool down and definitely seems to have a better cool down.
Now the Maytag DE806 I am putting together (not a true DE806 since it will have a 408 auto dry timer but otherwise will have similar features to a true Maytag DE806) will be interesting to see how it operates once I get it everything all hooked up and working on it. My original plan was to find a Maytag 808 console since it has the opening for low and regular temperature options, have a 306 timer for timed drying only, and have a adjustable cycling thermostat set to 175F and the other a low heat 120F thermostat. I am willing to bet it will be FAST with a 175F high heat but will just settle on having a single low he temperature until I am locate an 808 console for it. Would even be a first dual cycling thermostat HOH dryer made after 1966 in the group and possibly the fastest one in the group as well.