Blue Flame and Infrared both have Oxygen Depletion Sensors (ODS). Infrared heaters are extremely targeted. Blue Flame heaters may take longer to heat the room as it works to convect the entire area, while Infrared heaters provide instant warmth in the form of directional heat, to objects in its line of sight.Click to see full answer. Also know, what is the difference between radiant and blue flame heaters?Blue flame is a common name for convection and plaque heater is common for radiant heat. It isn’t that either of them give off moisture, but convection heat warms the actual air and radiant heats the moisture in the air. Question: I want to heat two rooms with a wall-mounted propane heater.Also Know, are blue flame heaters safe? The answer: Yes, if used properly, space heaters are perfectly safe. Often, they provide the most energy-efficient solution. In other situations, they’re not only inefficient, but dangerous. The professionals at Blue Flame Heating & Air Conditioning are here to explain the pros and cons. Similarly, what is the difference between blue flame and red flame? In a flame the outer most layer or the blue flame is hotter than the Yellow or Red flame because a “complete combustion” takes place in the area.Which is better infrared or convection heater?Infrared heaters silently warm up objects and people. They’re more expensive to buy but cheaper to run. Convection heaters warm up the air; this heat can be lost through a draft or open door. Convection is cheaper upfront, but expensive to run.