blue flame vs. infrared Backup Propane Heater

Discussion in 'Home Repair' started by crazysounds, Oct 23, 2004.

  1. crazysounds

    crazysounds Guest

    Hi,

    Does anyone know the major differences between the blue flame vs. infrared
    propane heaters. I know that with the blue flame you can see the flame and
    the infrared uses a ceramic block that heats up. Which one is better and
    why?

    Thanks
    crazysounds, Oct 23, 2004
    #1
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  2. "crazysounds" <> wrote in message
    news:umued.50766$...
    > Hi,
    >
    > Does anyone know the major differences between the blue flame vs. infrared
    > propane heaters. I know that with the blue flame you can see the flame
    > and
    > the infrared uses a ceramic block that heats up. Which one is better and
    > why?


    Infrared heaters heat objects, not the air. If you are in direct line of
    sight, you will feel the warmth immediately. They are quiet, very
    efficient. Think of radiation of heat from the sun. You feel in more in the
    open than you do standing in the shade, so do the objects the heater is
    aiming at.

    Flame heaters often can circulate air more if there is a booster fan. They
    can warm a larger area faster but at the sacrifice of the "line of sight".
    Edwin Pawlowski, Oct 23, 2004
    #2
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  3. crazysounds

    crazysounds Guest

    I don't have experience with either one. I want a propane heater for my
    livingroom. The heater would supplement my oil fired furnace. I want
    something that would allow me to keep the house warm if there was an
    electricity outage. My livingroom is about 20 a 15 feet. Which type of
    propane heater would you suggest?


    "Edwin Pawlowski" <> wrote in message
    news:Yrved.22934$...
    >
    > "crazysounds" <> wrote in message
    > news:umued.50766$...
    > > Hi,
    > >
    > > Does anyone know the major differences between the blue flame vs.

    infrared
    > > propane heaters. I know that with the blue flame you can see the flame
    > > and
    > > the infrared uses a ceramic block that heats up. Which one is better

    and
    > > why?

    >
    > Infrared heaters heat objects, not the air. If you are in direct line of
    > sight, you will feel the warmth immediately. They are quiet, very
    > efficient. Think of radiation of heat from the sun. You feel in more in

    the
    > open than you do standing in the shade, so do the objects the heater is
    > aiming at.
    >
    > Flame heaters often can circulate air more if there is a booster fan.

    They
    > can warm a larger area faster but at the sacrifice of the "line of sight".
    >
    >
    crazysounds, Oct 24, 2004
    #3
  4. "crazysounds" <> wrote in message
    news:%QNed.64978$...
    >I don't have experience with either one. I want a propane heater for my
    > livingroom. The heater would supplement my oil fired furnace. I want
    > something that would allow me to keep the house warm if there was an
    > electricity outage. My livingroom is about 20 a 15 feet. Which type of
    > propane heater would you suggest?


    I'd look at something like this.
    http://www.vermontcastings.com/about/products/productdetails.php?id=161

    Visit your propane dealer and they may have some suggestions about
    installation and the best type of stove for your setup.
    --
    Ed

    http://pages.cthome.net/edhome
    Edwin Pawlowski, Oct 24, 2004
    #4
  5. crazysounds

    modervador Guest

    "Edwin Pawlowski" <> wrote in message news:<Yrved.22934$>...
    > "crazysounds" <> wrote in message
    > news:umued.50766$...
    > > Hi,
    > >
    > > Does anyone know the major differences between the blue flame vs. infrared
    > > propane heaters. I know that with the blue flame you can see the flame
    > > and
    > > the infrared uses a ceramic block that heats up. Which one is better and
    > > why?

    >
    > Infrared heaters heat objects, not the air. If you are in direct line of
    > sight, you will feel the warmth immediately. They are quiet, very
    > efficient. Think of radiation of heat from the sun. You feel in more in the
    > open than you do standing in the shade, so do the objects the heater is
    > aiming at.
    >
    > Flame heaters often can circulate air more if there is a booster fan. They
    > can warm a larger area faster but at the sacrifice of the "line of sight".


    BTU's are what does the heating, BTU's/hour is how fast the heating
    occurs, and a BTU/hr is a BTU/hr. So for a given BTU/hr heater, the
    "area" is being heated at the same given rate. The rest can come down
    to perception.

    I guess it may depend on what you mean by "a larger area." Do you mean
    just the air, or all the other objects in the room?

    With the ceramic brick heater, the closer objects in the line-of-sight
    do indeed warm up faster than the air on the other side the room, but
    you feel the heat radiating from these warm objects and the air near
    them is also warmed by conduction, which could feel nice. A
    circulating fan can get that heated air moving to other parts of the
    room same as for the blue flame heater, by the way.

    With the flame heater, the air gets warm first which may feel nice,
    but the air near to objects in the room will feel cold anyway because
    the objects absorb heat from the air as well as absorbing heat that
    you radiate, while not radiating heat back at you. So your perception
    of warmth is decreased by the chill that seems to come from the
    objects in the room.

    So assume you come into a cold room and flip on the heater. One of
    them will feel warm wherever red light from the heater falls but
    farther away it can still feel cold for a while. With the other, you
    feel sort of a warm breeze but everything else about the room seems
    cold for a while. After the room has been warmed for a few hours, the
    differences are less noticeable, because the air and the objects reach
    a more even temperature.

    So it depends a bit on where you will put the heater relative to where
    you will be in the room, what you prefer in terms of feeling warm in
    the early stages of the warmup, and how long the heater will be on.

    %mod%
    modervador, Oct 24, 2004
    #5
  6. "modervador" <> wrote in message
    >
    > I guess it may depend on what you mean by "a larger area." Do you mean
    > just the air, or all the other objects in the room?


    The radiant heater is a better choice if the work areas is say, 5 x 5 but
    the room is 50 x 50. You feel warmer as long as you are in sight of the
    heater. A bunch of people spread out over the entire area, to reach a fast
    level of comfort, will need a few radient heaters or one larger one that
    heats the air first.


    >
    > With the ceramic brick heater, the closer objects in the line-of-sight
    > do indeed warm up faster than the air on the other side the room, but
    > you feel the heat radiating from these warm objects and the air near
    > them is also warmed by conduction, which could feel nice. A
    > circulating fan can get that heated air moving to other parts of the
    > room same as for the blue flame heater, by the way.
    >
    > With the flame heater, the air gets warm first which may feel nice,
    > but the air near to objects in the room will feel cold anyway because
    > the objects absorb heat from the air as well as absorbing heat that
    > you radiate, while not radiating heat back at you. So your perception
    > of warmth is decreased by the chill that seems to come from the
    > objects in the room.


    You did a better job of explaining it.
    Ed
    Edwin Pawlowski, Oct 24, 2004
    #6
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