Propane / Discussions

My partner is putting radiant flooring with a professional in our living greenhouse. But for now he has purchased a ventless wall heater. He claims he smells nothing. I smell it in the house as he installed it and I hear hissing. I no longer have asthma but my lungs have a hard time I am dizzy coughing. He won't listen...

...propane for heat but we are thinking in floor heat and an electric furnace. Are we on the right track ? The home will be a one story with walk out bassment approx 2500 squft max. Obvously we will try and make the building envelope as energy effient as posible. Thanks Olie If you are investing in solar panels and want t...