Does the bottom of our hot tub heater get hot?
The bottom of our hot tub heater does not get hot, so there is no danger of the decking boards being damaged. However, you would need to protect the area in front of the heater because when loading the stove with logs some sparks might escape.
We advise protecting the area in front of the heater door in a way that a wooden floor is protected in front of fireplaces. You may get a hearth plate as an accessory from us or use similar protection made of glass sheet, tiles and similar.