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12/19/2010 05:08:38 PM · #26 |
Originally posted by DrAchoo:
So what makes one of those lampost heaters so efficient? They seem to radiate warmth almost immediately and the heating portion doesn't cover a large surface area. Is it because it gets glowing hot in portions? |
Yes, and the reflector above that reflects radiation downward that would otherwise escape. |
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12/19/2010 05:47:11 PM · #27 |
| Dang, y'all still thinking of using 90,000btu when 500 would do. tisk tisk tisk |
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12/19/2010 06:32:47 PM · #28 |
| Just move somewhere warm. |
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12/19/2010 07:52:54 PM · #29 |
| My physicist husband says : you can use conduction. Put a long aluminum bench over the fire pit and sit on the other end of the bench. Your backsidw will be heated by conduction. |
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12/19/2010 08:39:20 PM · #30 |
Originally posted by Spork99:
Just move somewhere warm. |
Yeah, It was 52° here when I came home just now and it was COLD!
Try Hawaii
:)) |
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12/19/2010 09:13:33 PM · #31 |
Ray, you are on the right track here. If a Sterling Heat Engine is used to power the fan then the energy from the fire can be reused to power the fan. That would be cool,,, err hot...
Originally posted by RayEthier:
Has anyone mentioned a fan system. It has been mentioned many times that heat rises, but most gas fired furnaces and fireplaces have a fan system to send the hot air to other locations that straight up the chimney.
If you are using this outside, it is almost a waste of time and effort since you might be nice and toasty in the front, (assuming you are facing the fire) and will be freezing your hind site since all the cool (cold) air is rushing toward the source of the heat.
For what it's worth, I have a propane fired heater I use in my garage in the winter time and it works just fine... mind you my garage is insulated.
You best bet would be to throw a temporary tent over it to retain the heat and enjoy.
Ray |
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12/19/2010 09:19:43 PM · #32 |
That was essentially my original suggestion. Using convection and radiation (I think) instead of something more profound. Like the overpriced fans you put on your woodstove that use the energy of the heat for spinning.
Message edited by author 2010-12-19 21:22:01. |
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12/19/2010 10:46:35 PM · #33 |
Originally posted by sfalice:
Originally posted by Spork99:
Just move somewhere warm. |
Yeah, It was 52° here when I came home just now and it was COLD!
Try Hawaii
:)) |
52°F is shorts weather |
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12/19/2010 11:29:46 PM · #34 |
Originally posted by Spork99:
Originally posted by sfalice:
Originally posted by Spork99:
Just move somewhere warm. |
Yeah, It was 52° here when I came home just now and it was COLD!
Try Hawaii
:)) |
52°F is shorts weather |
Hehe, I'm back to Miami soon enough.. That'll be a quick spring for me... :) |
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02/26/2014 08:44:05 PM · #35 |
This is an old email thread but I read every response in the hopes for a solution here. :) We have an outdoor gas fire pit as well and I was planning to have a metal lid, imagine that umbrella concept, built over it in the hopes it would dissipate the heat outwards. I saw all the smart alec replies and laughed, but, I'm to the point I really need a solution. Would it work to have something like this built that sat 3 ft above the flames or somewhere around there? I got the notes on rebar, I got the notes on which metals are best/worst... looking for something that will work. We spent an arm and a leg on this fire pit and deck and now realize sitting around it, all the heat goes straight up. And no, I'm not moving our bench to sit ABOVE the flame. :)
Any solid suggestions would be very much appreciated.
Thanks! |
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02/26/2014 09:07:04 PM · #36 |
| Well down south we just throw some diesel fuel and a tractor tire on an old sofa and wham! Now that's a fire!!!! On a more serious note. Go get some lava rocks used in gas grills to radiate and hold heat. Cheap and effective. Reflectors work too but Steel or anything that you would want to leave out in the weather will cost an arm and a leg. I was pricing SS or aluminum to make a back pack wood stove. Almost had a heart attack when I saw the price. |
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