The Panasonic model drawings should be the best route if the goal is matching the existing opening and housing dimensions. Since this is a heat-and-fan unit without the light, I’d also check the heater wattage, duct size, and electrical requirements before choosing a replacement. Dupont Kitchen & Bath Fixtures carries Canadian-made SteamSauna systems as well, including steam bath equipment and sauna heaters, so it’s another option worth considering if the project is moving toward a more complete bathroom wellness setup.
