How do you feel about a thermostat controlled hand fired?

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Fri Feb 15, 2008 10:04 pm

rberg, that would be a consideration, if I was only trying to maintain the stoves temps, but at this point, as I said above, now I am toying with maintaining the 1st floor room temps. In this case, I'll need a T-stat sensor on the 1st floor and the stove temps will have to vary in an attempt to maintain it.

Yes, I'm of the old school regarding MPDs. .. from when we were too poor to be letting the heat go up the chimney. Actually, the baro damper has it's place in this application, as it will limit the burn on the stove, should the stove damper be open for an extended period of time.
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: rberq On: Fri Feb 15, 2008 11:02 pm

Ah, yes, I see what you mean. What you are trying to do is way more fun because it will probably involve motors and other cool stuff.
rberq
 
Hand Fed Coal Stove: DS Machine 1300
Coal Size/Type: Nut -- Kimmel/Blaschak/Reading
Other Heating: Oil hot water radiators, propane

Re: How do you feel about a thermostat controlled hand fired?

PostBy: VigIIPeaBurner On: Fri Feb 15, 2008 11:33 pm

Dallas wrote:My stove has gotten a bit beyond "KISS" and "room". So, I'm not thinking of keeping the stove temp. constant, but have moved more toward keeping one section of the house at a "near constant", as will be determined by a programmable T-stat. :?:


You've got some extreme hood/ductwork going on there! Really nice work (Really tempermental stove/draft). Now it looks like you could get into some tech stuff like RF Thermostats, linear actuators or DC step motors to make it happen 8-) Maybe a 8" rf or X-10 duct fan hooked to the P T-stat and a simple bimetallic air control on the stove's inlet . The duct fan comes on via P T-stat signal, cools the stove causing the bimetallic flap to open up and increase combustion air/draft to kick up the output. Hmmm... timing is everything :) Good project!
VigIIPeaBurner
 
Hot Air Coal Stoker Furnace: Keystoker Koker
Hand Fed Coal Stove: Vermont Casting Vigilant II 2310
Other Heating: #2 Oil Furnace

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Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Fri Feb 15, 2008 11:44 pm

I already looked at the RF T-stats, but I don't think a conventional T-stat will be too difficult.

I did sneak in another mod. along the way. I ducted my return at the far end of the house, across the basement to my fans, which I had installed earlier. Since it's doing better for the 1st floor, my head moved to this phase. In doing my search for damper actuators, it looks like I missed some on eBay for about $15.00. :cry2:
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Sun Feb 17, 2008 7:27 pm

For those of you , who haven't gotten a good picture of how this might be done or it's operation:

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Hopefully tomorrow or Tues., I'll have found a good source (cheap) for the damper actuators.

I was thinking about the thermostats: Does anybody have a good feel for how a "2 stage heat" or "heat pump" T-stat works? Would one of those do the job for both, the furnace and stove? Or would I be better with two separate T-stats?
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Cyber36 On: Mon Feb 18, 2008 10:31 am

As long as the T-stat can handle 2 seperate heat sources, you should be good to go......
Cyber36
 
Hand Fed Coal Stove: Marathon/Logwood

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Mon Feb 18, 2008 10:45 am

It seems kind of hard to pin it down. A heat pump stat, seems like it must be manually switched to "emergency heat" to take advantage of the other heat source. A 2 stage stat might do the job. :?: Or two separate stats might be more versatile.
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: LsFarm On: Mon Feb 18, 2008 2:58 pm

This may have been mentioned, but have you considered a thermostat controled [could be a simple close on decrease snap disc] combustion blower.?? My Big bertha controled the water temp with a combustion blower.. thermostaticly controled through the water temp aquastat..

Can you put a combustion blower on your stove so it feeds air under the grates but won't blow ash and combustion fumes around and out of the stove [positive pressure in the firebox] ??

A small squirrel cage fan controled by a snap disc in your nice heat collector could turn on the fan when the temp dropped below a desired temp, then stop blowing when the temp rose high enough to open the snap disc . Pretty simple, and the advantage is that you could get the best burn from your coal possible with a forced draft... but you would have to monitor your draft and pressures, and probably leave your MPD open [for safety, to prevent positive press in your firebox].

Just another angle to look at,

greg L
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Mon Feb 18, 2008 3:05 pm

It was kinda mentioned earlier, however I'm going for "space control", by controlling the burn, rather than "stove control".

I didn't do as well as I had hoped for, on the damper actuator. $74.34, plus shipping was the best I could do, without hanging out on eBay. It should be here later this week.
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Thu Feb 21, 2008 11:45 pm

The damper is in place and operational ... it's "in charge" tonight! Getting the thermostat wire down through the old oak sill was a PITA, but it's down to the basement. Now, I have to get it through the ceiling (currently, laying on the floor) and over to the stove. Hopefully, I'll have some pictures by tomorrow.
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: rberq On: Fri Feb 22, 2008 3:55 pm

Sounds like fun. Because you are going with a full-on / almost-full-off system, and because coal is a bit slow to respond, it will be interesting to see whether your room temperature experiences significant fluctuations. Does your thermostat have an adjustable heat anticipation feature -- that is, turns on the burner somewhat before the room temp drops to the set level, and turns off the burner somewhat before room temp rises to the set level, to prevent overruns in both directions?
rberq
 
Hand Fed Coal Stove: DS Machine 1300
Coal Size/Type: Nut -- Kimmel/Blaschak/Reading
Other Heating: Oil hot water radiators, propane

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Sat Feb 23, 2008 2:29 am

So. yesterday was my birthday! My little 30 year old buddy and her husband came to help celebrate. :D

I had the pictures, but didn't get them up ... now I can't see or type.

Everything is done except the thermostat wire.

Here is the box with the 24v transformer and relay .. controlled by the thermostat.

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Here is the the damper actuator.

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Here is the operation of the system. .. with me pulling the plug, rather than running upstairs to change the thermostat.

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Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Dallas On: Wed Feb 27, 2008 9:28 am

The new damper actuator/thermostat has been working great! :D The house temperature seems to stay very level. I've only noticed the furnace run two times, both times being first thing in the morning, after loading fresh coal, before it had a chance to get "up and going". I do have the T-stat set back for night, but on the "min/max thermometer" the temp doesn't seem to have dropped all that far through the night.

The pea coal seems to burn good and shake down better than the nut - in my stove.

I've been wondering about this type of coal firing - "full draft/minimum draft" cycles, in regard to ash, complete coal burn, efficiency, etc.. :?: It works :!:
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Smoker858 On: Sun Nov 18, 2012 9:24 am

What a success story. Very well executed
Smoker858
 
Hand Fed Coal Stove: Hitzer 50-93
Baseburners & Antiques: Reading Stove Works Penn circa 1900
Coal Size/Type: Nut
Other Heating: nat gas
Stove/Furnace Make: HITZER
Stove/Furnace Model: 50-93

Re: How do you feel about a thermostat controlled hand fired?

PostBy: Smokeyja On: Sun Nov 18, 2012 9:39 am

Very cool!
Smokeyja
 
Baseburners & Antiques: Glenwood #6 baseheater
Coal Size/Type: Blaschak Anthracite Nut

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