summer storage temps with lightbulb

summer storage temps with lightbulb

PostBy: Dennis On: Thu May 09, 2013 10:25 am

I shut down yesterday,wire brushed and vaccumed out fly ash.This year i'm trying the light bulb.Previous yrs I used LPS-3 and had flaking and very little pitting(maybe I didn't clean good enough).I hung a light cord on the upper water baffles with a 100 watt bulb(I only had 100 watt bulbs),this morning I checked the temp inside and it was 79.3 degrees.What would or is the ideal temp to stop corrosion.When I used the LPS-3 the lower sections that didn't get enough heat to burn it off seamed to have a hard gummy build up on it(probally not good for heat transfer),maybe before next fall I will sandblast the residue off.
Dennis
 
Hand Fed Coal Boiler: AHS/WOC55-multi-fuel/wood,oil,coal
Coal Size/Type: Anthracite/stove size

Re: summer storage temps with lightbulb

PostBy: nortcan On: Thu May 09, 2013 12:04 pm

Hi Dennis, I used the light bulb for the past years and still continue with it, one in the Golden and one in the Sunnyside.
This year I tried to ""coat"" inner of the stove, flue pipe and the chimney with baking soda , PH+ to neutralize the acidic coats from burning ant.
I had a small sand blaster gun and used it for that purpose. I had to reduce the pressure for the inside of the stove to have as less as possible white soda fume in the house, you know, antique stoves are not 100% air tight :lol: . For the pipe and chimney, it did a good coating job plus had a cleaning effect. After that I put the bulbs in to keep the humidity away and to make a nice ""faux-fire"" :) .
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nortcan
 
Stove/Furnace Make: Stuart,Peterson/ Grander
Stove/Furnace Model: Sunnyside/ Golden Bride

Re: summer storage temps with lightbulb

PostBy: hcarlow On: Thu May 09, 2013 2:08 pm

Like yourself I cleaned mine up well and then sprayed or wiped on a thin coat of fluid film, closed up all the inlets and outlets etc. . I am useing a 40 watt bulb as I think it should dry up the air and keep the humidity out . This is my first year doing this so I will keep a close eye on it .
hcarlow
 
Stoker Coal Boiler: Leisure Line WL 110

Visit Lehigh Anthracite

Re: summer storage temps with lightbulb

PostBy: WNYRob On: Thu May 09, 2013 3:58 pm

I have been using a light bulb and infrared reptile heater element to keep my stove warm over the past couple summers and my rust has stayed at a minimum. I think it is totally impossible to keep any rust from forming, so there will always be a little.

In terms of temps needed inside the stove, not sure there is a magic number. I think as long as the air inside the stove is a few degrees warmer than the surrounding air, moisture will not migrate into the stove (something to do with how relative humidity relates to temperatures, any meteorologists on this board???). If you are using a 100 watt'r, I would guess your inside air is plenty warm. 100 watts throws a lot of heat. The infrared reptile heaters are another option. They throw out infrared heat which actually warms the surfaces inside the stove and then the surfaces radiate their heat, heating the air.

This year I had to revert back to just a light bulb. I had coated the inside with a 50/50 mix of kerosine and transmission fluid and when I started my infrared heater, it heated my stove walls so much it vaporized the kerosine mix. I wasn't sure how flammable the vapor floating inside the stove was so I went with the lower temps of a light bulb.
WNYRob
 
Hot Air Coal Stoker Stove: Keystoker Koker controlled with CoalTrol

Re: summer storage temps with lightbulb

PostBy: Lightning On: Thu May 09, 2013 7:35 pm

I'm not a meteorologist but from what I understand about humidity, temperature has a huge influence. It seems to me that it's called relative humidity because it's relative to the temperature. For example, 80 degree air will hold more water than 50 degree air. That's why when it's humid and warm outside, condensation will form and run down the side of a cold glass of lemonade. The layer of air around the glass reaches saturation (100% humidity) as it cools, and squeezes the water out that it's holding and it forms water droplets on the glass.

So given this condition, the opposite is true in your stove with the light bulb. The warmer environment in the stove effectively lowers the relative humidity and the water in the air is less available to mate with coal ash to produce sulfuric acid.

The science of the light bulb and the stove :lol:
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: summer storage temps with lightbulb

PostBy: Dennis On: Sun May 12, 2013 11:46 am

I had a 100 watt bulb in and the temp was 74degrees and 48% humid,then put a 75 watt bulb and had 70degrees and 51% humid.Not sure what % of humidity needs to be to start corroding the metal surface.I'll keep checking on it to see if corrosion starts.
Dennis
 
Hand Fed Coal Boiler: AHS/WOC55-multi-fuel/wood,oil,coal
Coal Size/Type: Anthracite/stove size

Re: summer storage temps with lightbulb

PostBy: Lightning On: Sun May 12, 2013 12:32 pm

Dennis wrote:I had a 100 watt bulb in and the temp was 74degrees and 48% humid,then put a 75 watt bulb and had 70degrees and 51% humid.Not sure what % of humidity needs to be to start corroding the metal surface.I'll keep checking on it to see if corrosion starts.


Well, Im thinkin the dryer (lower relative humidity) the better partner... Hard to pin down a specific number, I would think.. But the numbers jive with what I wrote in the previous post.. Cool :verycool:
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: summer storage temps with lightbulb

PostBy: mikeandgerry On: Thu Sep 12, 2013 3:15 pm

The trick is to keep the temperature of the metal higher or the same temp as the surrounding air temp so no condensation occurs.
mikeandgerry
 
Stoker Coal Boiler: Axeman-Anderson Anthratube 130-M

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