Earth Stove RP45 with broken burn pot

[Rainierstranger]

I rent a home equipped with an Earth Stove RP45 that has worked well enough for me over the last 5 years. The burn pot has always been broken on the bottom, allowing some pellets through to the ash pan. Over time it's gotten worse- the bottom of the pot is now 75% open. Burn pot fills with a combo of black charred pellets and smoky pellets that are slow to ignite. Bottom of burn pot and the ash pan hold glowing embers. The airflow is poor.
I'm getting a lot of black ash in the window, and the fire is smoky and difficult to start. Today smoke started puffing back into the house through the top vents while starting.
Obviously it needs to be cleaned again because it's been running so dirty this year. My question is how to fix up the burn pot so this stops being a cycle. Earth Stove is gone so skim chance at replacing the burn pot. I tried a metal mesh product called a "Firemizer" that I cut to size and used to create a floor for the burn pot, but this seemed to limit the airflow too much. Any other thoughts?

 

[Stovensen]

I rent a home equipped with an Earth Stove RP45 that has worked well enough for me over the last 5 years. The burn pot has always been broken on the bottom, allowing some pellets through to the ash pan. Over time it's gotten worse- the bottom of the pot is now 75% open.

Hello Rainierstranger and welcome to the forum, too bad we aren't neighbors In my workshop I have a co2 welder, some 2 mm steel plate, a power grinder and a drill press( and bits ). These are all the tools we need to fix your burn pot. Also, we must know the exact diameter and locations of the air flow holes in the burn pot.
I hope it will be possible to find a metal workshop in your neighborhood that can repair the burn pot. Once this is repaired the stove should be like brand new. An RP45 is so simple that not much can fail.

Burn pot fills with a combo of black charred pellets and smoky pellets that are slow to ignite. Bottom of burn pot and the ash pan hold glowing embers. The airflow is poor.
I'm getting a lot of black ash in the window, and the fire is smoky and difficult to start. Today smoke started puffing back into the house through the top vents while starting.
Obviously it needs to be cleaned again because it's been running so dirty this year. My question is how to fix up the burn pot so this stops being a cycle. Earth Stove is gone so skim chance at replacing the burn pot. I tried a metal mesh product called a "Firemizer" that I cut to size and used to create a floor for the burn pot, but this seemed to limit the airflow too much. Any other thoughts?

That "Firemizer" metal mesh was not a bad idea, but as you stated, the stove most likely needs a deep clean. Since the RP45 is all natural draft, it is totally depending on optimal airflow in the exhaust and chimney. On page 25 in the manual it is recommended to deep clean the RP45 "after every 1/2 ton of pellets, when the metal surfaces of the exchange tubes are no longer visible, or after every 2-3 weeks of use". This is twice as frequently as in most other pellet stoves, but clearly indicates that optimal airflow is necessary in a natural draft pellet stove!
If you don't have the manual, you can download it here:
https://www.dropbox.com/s/mrhfezgo4kbmxwh/Earth Stove MP35_50.pdf?dl=0

The Earth Stove RP45 certainly is unlike any other pellet stove, I've seen so far. The RP45 also differs from the other Earth Stoves in that it only has one auger: The cup auger. The other Earth Stoves have the patented Träger two auger system also used in the BBQs.
And the vertical exchanger tubes of the RP45 remind me of those solar draft towers that are being built in some sunny places. Here's a fully functional solar tower near Madrid in Spain:

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[Lake Girl]

Give these folks a call to see if they can get you a new burn pot ... http://www.stove-parts-unlimited.com/Earth-Stove-Pellet-Stove-Parts-s/330.htm

PS Welcome to the forum! Keep us posted on how you make out. Stovensen provides another good option if you have a decent metal fabrication shop handy!