I installed the Peopoly heater unit ordered with my kit. Also added were a new power interface with on/off switch and a build chamber thermometer. The power supplies for both the Moai and heater were relocated inside the lower half of the system.
The heater is mounted at the top left side of the build chamber, secured to a plate for the 20x20mm aluminum frame extrusions (available from many online suppliers). Wiring was run down behind the z-axis support bracket. The digital thermometer is mounted to the top of the Moai, with the temperature probe secured to another T-slot plate on the lower right side of the build chamber. It’s an inexpensive waterproof aquarium type unit also easily sourced online.
The heater is powered on with the new switch on the back of the Moai in order to permit pre-heating the chamber separately from starting the printer. I find that the built-in thermostat in the heater module maintains the chamber between about 85 and 95 degrees F. With a 65 degree F room temp it takes about 15 minutes for the chamber temp to stabilize, resin comes up to temperature after about 30 minutes.
Overall the results seem acceptable, we’ll see how it performs over time…