Heating a Guest House at Altitude
I've recently acquired a property at high altitude -8000+ feet located in Colorado. The whole guest house is about 1000 square foot. The kitchen/dining/living are all open, then there is the bathroom and bedroom at the back. The main area is heated by a Jotul gas stove. There also used to be a vented gas heater in the bathroom, located at the back end of the house.
I need to replace that heater in the bathroom with something that will warm the back rooms in the house. Would another vented gas heater be the way to go? I find them rather ugly and am considering using this property as a vacation rental. The vent-free gas heaters don't seem to be recommended at altitude. What other options do I have? What is most efficient for small areas? I've seen there are eco-heaters, pelonis radiant heaters, electric baseboard etc -would these be an option or would I be better with the vented gas heater? Are there any non-bulky looking vented gas heaters out there or something else that might work?
Thanks for any suggestions you can make!