Ideal Steel 210 by Woodstock Stove Combustor Issues

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Mikeswoodstove

New Member
Dec 3, 2025
6
Asbury, NJ
Hi all. So I have an Ideal Steel 210 by Woodstock Stove company and I am having Catalytic Combustor issues for the 2nd time. I bought this house in 2022, Stove was installed in 2018, last November the original catalytic combustor failed so I ordered a new one. I started running it in December, ran it until March 2025. After the burning season I have a company come clean and inspect the entire system, Stove and pipe. They literally take the stove apart and clean it. I fired it up first week of November 2025, the combustor wasn't functioning correctly. After a burn, to reload I open the cat, rake the coals to the front, open air damper to fully open, once coals get hot, I spread them out evenly, load Stove with oak and ash all below 15% on moisture meter. (I find that burns best in my stove).

Once pipe gets up to 250-275, front of stove by probe temp is 500-525, top of stove by pipe fitting us 450 ish (on infrared thermometer), i lower the air control down to 1/4 open, close the combustor, and the fire slowly dies out. Pipe temp drops to around 150, top of stove down to around 280-300 and front of stove by probe down to 350-300. I then have to re ignite the fire by repeating the process or just leave the combustor closed and open the air to half way or 3/4s until stove comes back up to temp, then I lower the air again to 1/4 position and then the combustor will do what it's supposed to. Mind you, I just cleaned the whole stove and combustor last weekend according to their instructions.

I called Woodstock stove company, explained this to the woman st least 6 times and she's telling me it can't be the combustor because it's working the second time, it has to be an air flow issue. I explained to her it's not an air flow issue because when ignite the stove the 2nd time, I put the air control in the same exact spot (1/4 open) and then the stove gets way too hot and I have to lower the air flow below 1/4 and it will burn fine all night. I told her the combustor only has 4 months burning on it. She says, u can buy a new combustor if u want. I said well, isn't this one under warranty. She said no, there's no warranty on combustors, only the original one that comes with the stove. I said so what am I supposed to buy a new combustor every year pr other year, she said I sure hope not.

So my question is, does anyone else have this issue of the combustor not igniting the first time and you have to reignite the stove a 2nd time and then the combustor works. According to the rep I spoke to I must be a complete idiot which I am not but that's exactly what she made me out to be. I love the stove but there's definitely a combustor issue on a few month old combustor and they are not standing by their product or even offering a replacement. Instead they r trying to come up with something that is my fault instead of saying, hey, maybe you got a bad combustor, that shouldn't happen. Let me send you out a replacement this time and u can send the old one back so we can inspect it. Instead they say well, u have to be doing something wrong because it works the 2nd time lol. I've had wood stove literally my entire life, I mean u don't need an engineering degree to run a wood stove but yet it has to be my fault. Anyone else have an issue like this?
 
How do your combustor and bypass gaskets look like? If they are original they may need replacement. Also check for any warpage around the combustor and bypass area?

It’s highly doubtful your cat is bad but it is possible. I would buy another and if it does solve your problem send the old one to Woodstock so they can check it out. If it’s bad maybe they will reimburse you.
 
I also forgot to add the Selkirk class A system was newly installed in 2018, same year as the stove. Complete new install in 2018 on both stove n Selkirk.
If it was working fine in March and then it was cleaned and then it wasn't working that would make me believe that the guys cleaning the stove might have done something. Since it was cleaned after the burning season, it's possible a critter or "something" is restricting the airflow up the chimney. Also possible that you air intake is clogged or isn't working properly. If that all checks ok then it's time to take a look at the Cat.

Do you have the instructions from woodstock on how to inspect and clean your cat? I would recommend you follow their directions and even on the old cat if you still have it. And @Todd makes a good point about those gaskets.
 
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IDK, but it seems to me as well it’s unlikely to be the cat itself but something about the way the stove got put back together. I’m guessing it’s an uncommon enough stove that the guys who took it apart are probably not seasoned experts on that particular stove.

Or, as above, something changed in the chimney. The cat won’t go bad sitting around over the summer.
 
How do your combustor and bypass gaskets look like? If they are original they may need replacement. Also check for any warpage around the combustor and bypass area?

It’s highly doubtful your cat is bad but it is possible. I would buy another and if it does solve your problem send the old one to Woodstock so they can check it out. If it’s bad maybe they will reimburse you.
Combustor gasket was replaced last December and is in good condition so is the bypass gasket. There is no warfare at all. The stove was inspected and cleaned by a certified company the end of September and everything is good. I just find it very weird the combustor doesn't ignite the first time it's engaged but it does the second time. That tells me something is wrong with the combustor because if anything else was wrong, not enough air flow, warped parts, bad gaskets, it wouldn't work the second time either. Especially since the stove was just cleaned and inspected 1 month before before I started burning.
 
If it was working fine in March and then it was cleaned and then it wasn't working that would make me believe that the guys cleaning the stove might have done something. Since it was cleaned after the burning season, it's possible a critter or "something" is restricting the airflow up the chimney. Also possible that you air intake is clogged or isn't working properly. If that all checks ok then it's time to take a look at the Cat.

Do you have the instructions from woodstock on how to inspect and clean your cat? I would recommend you follow their directions and even on the old cat if you still have it. And @Todd makes a good point about those gaskets.
I understand what everyone is saying however, the stove company is very experienced with my stove. There are quite a few around here that they service. What gets me is works totally fine after I ignite the cobustor the 2nd time but not the first time. Keeping the air on the same setting the first time, the stove dies. Ignite the combustor n keep the air on the same setting, 1/4 open the 2nd time, the stove gets way too hot and I have to lower down the air control under 1/4. Thats what makes me think its the combustor, how can it be the first time the combustor dont ignite but the 2md time it does and everything is the same? Its throwing me for a loop here and I have read on other threads ppl getting bad combustors and combustors going bad quickly. Im just wondering if I have a bad one. They r on back order now so ill just put an order in and when the new one comes, switch it out n see what happenes.
 
If it was working fine in March and then it was cleaned and then it wasn't working that would make me believe that the guys cleaning the stove might have done something. Since it was cleaned after the burning season, it's possible a critter or "something" is restricting the airflow up the chimney. Also possible that you air intake is clogged or isn't working properly. If that all checks ok then it's time to take a look at the Cat.

Do you have the instructions from woodstock on how to inspect and clean your cat? I would recommend you follow their directions and even on the old cat if you still have it. And @Todd makes a good point about those gaskets.
It was working totally fine the first week I statted burning in November and then it went to poop so I dont think the stove company did anything wrong. They've been servicing the stove since 2019.
 
If it was working fine in March and then it was cleaned and then it wasn't working that would make me believe that the guys cleaning the stove might have done something. Since it was cleaned after the burning season, it's possible a critter or "something" is restricting the airflow up the chimney. Also possible that you air intake is clogged or isn't working properly. If that all checks ok then it's time to take a look at the Cat.

Do you have the instructions from woodstock on how to inspect and clean your cat? I would recommend you follow their directions and even on the old cat if you still have it. And @Todd makes a good point about those gaskets.
So this is what I do. Open combustor, I rake coals to the front, open the air all the way, let's coals get hot, spread them out, load stove with wood, bring stove up to temp as stated in book, lower air setting to 1/4, close combustor, stove slowly dies out. Then I open combostor, open air to 3/4, bring stove back up to temp, lower air to 1/4, close combustor, stove works fine and eventually on 1/4 open on the air the stove gets too hot and I have to lower it under 1/4. So with all the settings the same, if everything is working the 2nd time no problem but not the first time, it seems like 1) there's not enough smoke the first time to keep combustor going or 2) some reason combustor isnt igniting the first time. I dont know what to think at this point. Im just gonna put in an order for another combustor, it's on back order and when it comes, put the new one in n see what happens. This is what happened with the original combustor before I replaced it with this one last year but the original one was 5 years old. This one literally has 4 months of burning through it.
 
It very well could be a defective cat. I can't explain why it is doing what it is doing but there are certain steps you can take to help this process along.

I think your assuming too much with regards to the people who service your stove. No one here is saying they're incompetent but even professionals make mistakes. Ultimately, you're responsible for the operation of your stove and you need to be able to trust the people that work on it, but verify. Inspect their work and make sure they didn't make a mistake. All it takes is a twisted gasket, a loose screw/bolt/ fastening device to cause problems. An incorrect adjustment, a gap that shouldn't be there and on and on. We've even seen people that have installed a cat upside down in a stove that requires it to be positioned a certain way and they managed to force it in upside down.

When you removed the original old cat, did you inspect it, clean it according to your manual to see if that would help? Have you done that with the current cat? Woodstock has very good directions on specifically to clean and inspect the cat in your stove. When you need something the first place to look is back at the manual.

Post a pic of your cat. Let's take a look at it and see what's going on.

Have you verified the air control for your stove is working properly and that you stovepipe and chimney aren't obstructed?

I just spent approx. $30k on roofing siding and windows for my house. The company that did the work is one of the most reputable roofing companies around here. They made mistakes. I made them come back and make it right and they did. That doesn't mean they aren't trustworthy or incompetent it just means they needed to tweak the job they did.
 
How did you measure the moisture content in the wood?

How long has it been up and drying? Is the oak and ash the same age?
 
What are you using to know when it’s up to temp? Could the thermometer be off and you just need more time before engaging the cat?