I wound up trying a wall Mount (17x15x6") thermostatically controlled 10k but blue flame unit. Non vented, but plenty of air leaks left after a modicum of insulating
. I am fairly sensitive to free hydrocarbon and did not get all head-achey at any time. Fired it on Nov 27 and ran it until Dec 11. Total of 40 pounds propane used. Off at night, but with pilot burning.
$99 for the heater, delivered and another $78 at Lowes for hose/s regulator, elbows and CO detector. Approx $28 for gas. It might NOT have been enough to get me thru the winter aboard as planned. Once funding and research is complete, I'll prollygo with a 12k + btu diesel heater.
I will leave this one in place till Spring and warm WX then pull it off the galley cabinet hatch and stow it ashore.
BTW, I have a pair of those Alladins at home. They do heat a lot, but not snuff to stay aboard in Winter. Also, boatbuddy has a Lil Buddy and a tank top sunflower unit. Half hour aboard and I go cross eyed and NAFTA bail. ' Nuff said?