![]() There is not much offgassing compared to other heating and cooling units.Ĭarl Grimes suggests if new AC equipment like heat pumps have an offgassing odor then that could be from heavy oil on stamped metal parts. This unit does not exchange inside and outside air. Technically all combustion takes place outside of the building envelope. Indoor air is never used for combustion and it’s physically impossible for the combustion gases to get inside. ![]() It takes air from outside and uses it for combustion, while also bringing in air from inside and heating it in a sealed heat exchanger before sending it back inside. This type is safest (and most efficient) for small or tightly sealed spaces. Exhaust fumes vent out of a side wall or roof. The device is a sealed system, using no room air for combustion. They’re usually used in residential houses or mobile homes which are large enough to have oxygen to spare and ample make up air.Ī direct vent heater has an exhaust and an intake. The second type called “B vent” or Natural Vent uses some air from inside your living space, but vents the combustion gases outside. They are not really intended for indoor spaces. These are designed to be used outside or in a garage or space with lots of ventilation. They use air from inside your living space to burn, then vent the combustion gases inside your living space. The first type, the kind that is not safe for sensitive folks, in my opinion, is a portable propane heater like the Mr.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |