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  • Infrared Tube Heaters

    Earlier in the year I posted a question about garage heaters and what would be best for my 16x20 shop. I was settled on purchasing a Modine Hot Dawg.

    I just finished running the gas line to the shop and began pricing when I came upon Low intensity infrared heaters that I found in this handyman article. http://www.rd.com/familyhandyman/content/19703/

    Two points really stuck out.

    One is the efficiency of infrared. The other is I can stain/finish my wood projects without the furnace blowing dust around.

    I would like to hear your thoughts on infrared. The heater would be on all winter.
    Anyone can tear a man down, few can build one up.

  • #2
    Re: Infrared Tube Heaters

    Enerco makes this one for small garages.

    http://www.mrheater.com/productdetai...atid=50&id=123

    I have installed some Enerco products and have been pretty satisfied. I have had some minor issues with them.

    I have a 150k btu 50' long Reznor in my shop. If you can afford the initial cost I wouldnt hesitate on getting one.

    Andy

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    • #3
      Re: Infrared Tube Heaters

      Originally posted by Ruudacguy View Post
      Enerco makes this one for small garages.

      http://www.mrheater.com/productdetai...atid=50&id=123

      I have installed some Enerco products and have been pretty satisfied. I have had some minor issues with them.

      I have a 150k btu 50' long Reznor in my shop. If you can afford the initial cost I wouldnt hesitate on getting one.

      Andy
      this type of heater is good if you can put it above 8 or 9 ft or you cant put any thing under it

      i have put in a lot od hot dawg heaters and they are small in size ,very small clearance around it so you can tuck it in a corner ,you can put stuff under it and it has a fan that will spread the heat evenly


      this would be my choice
      Charlie

      My seek the peek fundraiser page
      http://observatory.mountwashington.o...nal&fr_id=1040


      http://www.mountwashington.org/weather/conditions.php

      new work pictures 12/09
      http://public.fotki.com/hvachawk/

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      • #4
        Re: Infrared Tube Heaters

        clearance is an issue

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        • #5
          Re: Infrared Tube Heaters

          I agree with Hawk. If you have the height they are good. Also you cant have anything blocking it as it heats objects and not air like radiant heat.

          Comment


          • #6
            Re: Infrared Tube Heaters

            A small local auto repair garage near me found this out the hard way. If you install one (infrared heater with reflector) say 10 feet above the floor and park your car under it, expect the paint to be burned off the roof if you leave it for long. If you can install it 20 feet or higher above the floor that's different.

            Also, they are no good for driving away moisture that will condense on cold surfaces. An example is if you have a cold clear night and a cool but very humid morning. The whole garage will seem soggy and you'll have wet tools. This is hell on machinery. If you keep the garage (air and equipment within) heated to well above outside temperature in the winter it helps drive out moisture. Be very sure to vent all fumes outdoors. Burning gas or oil ends up with loads of steam to deal with. You really must put it outside and that means through a good flue pipe.
            Last edited by Woussko; 08-17-2008, 04:13 PM.

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            • #7
              Re: Infrared Tube Heaters

              I have a 9' ceiling and the unit requires 4" above the heater and 7' below.

              So on the infrared heaters I would have to clear everything out of the way, all the way down to the concrete?

              Maybe I should just stick with Hot Dawg. Just trying to say energy costs.

              I priced out the 30,000 btu Hot Dawg and the HDS model is nearly double what the HD model is. I don't know that having separate combustion would be worth the added cost.
              Anyone can tear a man down, few can build one up.

              Comment


              • #8
                Re: Infrared Tube Heaters

                I recommend getting a genuine Modine Hot Dog or a small horizontal discharge unit heater and be done with it. Trying to save some $$$ on the heater won't save you at all over 10 years of use. Get with a good HVAC contractor and ask about insulating the garage to reduce heat loss. As for separated combustion it's for more than just efficiency. It's for safety too. Please remember that heating a building is for far more than comfort. You need it for moisture control too. If you have or plan to have machinery other than very crude stuff you really don't need it rusting. You also don't want soggy wet electrical switch gear or such to deal with. Depending on your climate you may well want to think about a high capacity dehumidifier too.

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                • #9
                  Re: Infrared Tube Heaters

                  With the reflector in the horizontal position that heater requires 54" of bottom clearance. In the 45 degree position it only needs 36".

                  Woussko: A 45k btu garage tube is hardly going to melt the paint off of car roofs. If you hung this heater at 20' in the air you wouldnt even feel any heat off of it. I dont have any problems with moisture in my shop. Neither do my shop neighbors where I have another 4 of these heaters installed identical to mine. Nor have I heard any complaints from the Chevrolet dealership where I have 4 100k btu 50'ers installed in their body shop.

                  Andy

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                  • #10
                    Re: Infrared Tube Heaters

                    Rudd

                    That's because you don't have or install DUNG FOUNG brand heaters.

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                    • #11
                      Re: Infrared Tube Heaters

                      there are other Modine heaters but they are bigger
                      Charlie

                      My seek the peek fundraiser page
                      http://observatory.mountwashington.o...nal&fr_id=1040


                      http://www.mountwashington.org/weather/conditions.php

                      new work pictures 12/09
                      http://public.fotki.com/hvachawk/

                      Comment


                      • #12
                        Re: Infrared Tube Heaters

                        I'll try to answer several of your questions:

                        1) Infrared will save you 30-40% in energy costs. The sole reason for the energy savings is that infrared heaters only heats objects, not the air. Like the sun or a fire, it will quickly heat everything in its path. Over time, the objects that are heated will begin radiating heat. Your floor slab will warm up and act as a huge radiator. Forced air units like the Hot dawg heat the air. Every time you open the garage door, you quickly lose a large amount of heated air.

                        2) For dusty environments, a separated combustion unit is recommended. Combustion air is drawn from the outdoors instead of inside the heated space. Both infrared units and forced air units are available in the separated combustion configuration.

                        3) If you choose infrared or forced air, be sure to maintain the manufacturers' clearance requirements.

                        Here's a great packaged infrared system that is certified for use in a residential garage:

                        http://store.h-mac.com/scwhank.html

                        Here's all the info. you need if you decide to go with a Hot Dawg style unit:

                        http://store.h-mac.com/mohdagasunhe.html

                        If you need to calculate your heating requirements, here's a great free heat load calculation tool:

                        http://store.h-mac.com/heatersizing.html

                        Good luck!

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