Thread Number: 6057
About That Oild Heated Clothes Dryer
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Post# 124503   4/25/2006 at 20:01 (6,573 days old) by launderess (Quiet Please, There´s a Lady on Stage)        

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Awhile back a member posted what he thought was a GE dryer which used oil for heating. After some investigation we quickly found out it was not the case, however interest was peaked since none of us had ever heard of a dryer powered by heating oil. That is until now, pipe:



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Post# 124504 , Reply# 1   4/25/2006 at 20:06 (6,573 days old) by frigilux (The Minnesota Prairie)        

frigilux's profile picture
Wow. Who'd a thunk it? Amazing! And once again, thanks, Launderess, for your diligent sleuthing.

Post# 124597 , Reply# 2   4/26/2006 at 06:10 (6,572 days old) by bajaespuma (Connecticut)        
Meanwhile, at the Bush-Bin Laden family picnic...

bajaespuma's profile picture
Yeah, and before that jerk in the White House is done with us we'll all have to abandon our electric and gas powered appliances for washboards, tubs, wooden pins and four dogs under the porch...

OH--I get it... then we'll all be like his constitumints!!!!

HEY MAW!! FETCH ME ANOTHUR BEER OUTTA THE OLD MAYTAG! CONDOLEEZA DUN GOT HERSELF A NEW HAIRDO AGIN!


Post# 124602 , Reply# 3   4/26/2006 at 06:24 (6,572 days old) by toggleswitch (New York City, NY)        
Do mine eyes deceive me?

toggleswitch's profile picture
*WOW* you GO Launderess, girl. That is some find!

I wonder if they finally figured out that the clothes would come out dirtier and smellier than they went in. I don't think it has a heat exchanger to keep the products of combustion out of the clothes-drying air loop.

In the ad: *The oil fired burner is rated at 7 GPH, 120,000 btu/hr*. Yes perhaps 7 GPH MAXIMUM, in that one gallon of fuel oil contains 140,000 BTU. At an efficincy of 85% (15% of the heat goes wasted out of the flue pipe)it would have a net heating rate of 120,000 BTU. HOWEVER if it does indeed not have a heat exchanger and is firing right into the the air-stream that dries the clothes it would have a nearly 100% *efficiency*

Methinks if they converted itwith/installed a cleaner-burning RIELLO oil-burner head they may have actually USED it............



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Post# 124603 , Reply# 4   4/26/2006 at 06:29 (6,572 days old) by toggleswitch (New York City, NY)        
Laundromat in Amsterdam, Holland

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--WAVES to LOUIS--

Way back in the 80's the public laundromat I used in Amsterdam made use of fuel-oil for the dryers INDIRECTLY by prodcuing steam. The steam then went to the dryers that each had a heat-exchanger coil.

The front-load gorgeous SS washers also had heat eachangers (steam-fed) to heat/boost the water temp.

My first and only oil-heated dryers actually witnessed!



Post# 125129 , Reply# 5   4/28/2006 at 10:24 (6,570 days old) by tomturbomatic (Beltsville, MD)        

That must have some kind of heat exchanger in it. The cabinet looks a little irregular for something mass produced. The first winter I lived in my Greenbelt home, the whole town was heated by oil-fired boilers manufactured in the 30s and 40s. The smell outside was distinctive. I would not want it in my clothes. There is only one grade of home heating oil that I know of. The boiler under our row of townhouses make a neat, low roar that you could hear out in the parking lot late at night when I returned from appliance hunting. The brand was KEWANEE. They are now bankrupt also.

Post# 125159 , Reply# 6   4/28/2006 at 16:36 (6,570 days old) by spinout (Phoenix)        
Commercial dryers...

All of the larger "commercial" sized dryers I'm aware of use heat exchangers regardless of the fuel used. And it's absolutely required if you're washing with dry cleaning fluids.

Post# 125440 , Reply# 7   4/29/2006 at 18:29 (6,569 days old) by tomturbomatic (Beltsville, MD)        

Begging your pardon, but there ain't nothin' between the burner at the top and the load going round and round but the perforated cylinder in commercial gas dryers. If there were, you would need one exhaust for the burner and another for the dryer. If you can observe a gas commercial dryer in operation, you can see the flame pulled down by the blower. Hamilton's first gas dryer for home use used a burner to heat a radiant plate positioned where the electric element would be in an electric dryer. This model, and we have seen two, had a little round flue in the top of the machine, near the back corner with a little cone-shaped draft diverter-like cap on it to vent the burner and the used the regular dryer air flow system to circulate air through the drying chamber. It was tried and abandoned. There is currently no domestic gas clothes dryer that uses heat exchanger technology.

As for dry cleaning, the modern cleaner-extractor-dryer is one machine like a giant combo for PERC or CO2 and operates in a closed condensing system to recover the solvent. Most are totally electric in operation, some using heat pumps, while others can be connected to steam to supply the heat. You really don't want to use PERC around a gas flame. While PERC is not flammable, when it is in the atmosphere around burning gas, compounds can form that have been known to eat holes in fabrics.



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