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Radiant versus fan

Posted: Sun Oct 21, 2012 12:42 am
by benush26
I went with a couple radiant panel heaters. They are about $50 each here in the US from big box stores. I would presume you could find something similar

I found one online at Target same brand as the two I have

http://www.target.com/p/cozy-legs-radia ... u=10803357

I also have them on a plug in timer so if I forget when I leave, they don't stay on all night. Yep, been there done that and paid for it!

I have them at right angles so they kind of cross paths where I am standing.

Posted: Sun Oct 21, 2012 5:09 am
by chrism
Dusty, Charlese,

I've loaded the Avatar as my profile picture - it was a low res image so maybe not suitable for close inspection? If you want I'll try and get a better version?

benush26,

I don't think that a couple of these heaters would warm my workshop, I looked at your link and see that they are only 150w each. I was thinking more of 2.5 kilowatts. I suppose the panel type would be good for providing background warmth, to help combat condensation and tool rot?

Chris

Posted: Sun Oct 21, 2012 9:39 am
by putttn
benush26, are there different models of the radiant from Target. The reason I ask is I have a couple of heaters like that at work but they're only good for under the desk and I doubt they'd reach to where I work in my garage. I have a L shaped section of the garage wall and end of the garage that I've "carved" out to make myself a "shop". I've been thinking about some type of radiant heater to head that area in the winter (Eastern Wash State) so really cold in the winter.

Posted: Sun Oct 21, 2012 12:22 pm
by JPG
Radiant heaters do not warm the 'air', but rather objects absorb the radiant heat.

As such they require far less electricity($$$).

They are quite useful in large cavernous buildings, and do indeed warm up all that is within 'view'.

Having more than one small one makes sense.

Realize the 'heat' diminishes as an inverse square(IIRC), so close proximity is needed.

Posted: Sun Oct 21, 2012 3:00 pm
by dlbristol
I have a radiant propane heater ( not vented) in my shop and have had no issues with moisture. That is a function of living in a very dry climate and using it only for the time I am in the shop. I am at 6500 feet, and temps are usually less than
40 degrees at the warmest. The amount of moisture does not seem to be an issue here. They are pretty common here. Keeping things waxed helps, but I don't see rust on other tools either. It was for me the only real option at the time I put it in.

Posted: Sun Oct 21, 2012 7:09 pm
by chrism
Where I live in the UK is one of the wettest counties and I have lots of problems with high humidity and a cool climate especially in winter, it is not uncommon to go into the workshop in the winter and find all the metalwork covered in condensation, hence my intention to insulate the roof to try and keep the humidity levels down, and I now think that electric heating, which shouldn't increase the humidity is the way to go.

Chris

Posted: Sun Oct 21, 2012 8:04 pm
by heathicus
chrism wrote:Dusty, Charlese,

I've loaded the Avatar as my profile picture - it was a low res image so maybe not suitable for close inspection? If you want I'll try and get a better version?
I'd like to see a bigger version perhaps along with an explanation of its symbology. As small as it is, I see a Dalek with two bug eyes on top of it!

Posted: Sun Oct 21, 2012 9:13 pm
by rjn2649
heathicus wrote:I'd like to see a bigger version perhaps along with an explanation of its symbology. As small as it is, I see a Dalek with two bug eyes on top of it!
Cool..I'm not the only one that watches Dr Who,
But I honestly don't see it.

Posted: Sun Oct 21, 2012 11:14 pm
by benush26
putttn wrote:benush26, are there different models of the radiant from Target. The reason I ask is I have a couple of heaters like that at work but they're only good for under the desk and I doubt they'd reach to where I work in my garage. I have a L shaped section of the garage wall and end of the garage that I've "carved" out to make myself a "shop". I've been thinking about some type of radiant heater to head that area in the winter (Eastern Wash State) so really cold in the winter.
I'm sorry, but have no clue about different sizes. I ordered this online and it was the only one I saw. There could be others but I have not looked. My space is a bit less than half the garage so about 10 by 20 and the two panels work quite well. One is an a corner and points diagonally the long way across the space and the other is about 2/3 down the long side (opposite) and points sort of towards the center of the space. They sort of crisscross. It does keep me warm even in Montana winters, If it's particularly cold then I fire up the propane tube heater for 15 minutes or so to chase away the frosties and then the radiant panels take over and do a decent job. Haven't tried to see how they work colder than 10 degrees in an uninsulated garage. it gets that colder than that and I just stay inside and watch re-runs of Norm!!

Unless the L shape is more than 20 by 30 I think two should do the job. You might even consider just one at the back of the L and then point in in the direction of you (depending on where you are working) and then move it as you go to a different section, I was just going to get one, but happened upon a discount coupon and free shipping so bought two.

And the other night on the national news (CBS) they said the west would be having a warmer and drier winter (not so much in the east though!) so Spokane should only have a dozen or so days colder than 20 below:eek:

Posted: Mon Oct 22, 2012 12:29 am
by larryhrockisland
Will the GRP lights be subject to condensation? I have a metal building with 3" vinyl backed isulation throughout except for a skylight that runs along the ridge and it has condensation at the skylight when conditions are right. I don't have any heat in the building and don't intend to maintain it as a condtioned space anyway so I may always have this problem. I didn't think about the skylight causing a problem when I built the building, I was just looking for natural light.

Larry