Hardy OWB could burn cleaner

[dumbarky]

Ok so I have a Hardy OWB it's 25 plus years old. Same original design H2 120,000 btu wood heating water circulating furnace. Its heats my house and domestic water no complaints. However I wonder if there is some modifications or improvements, that would or could make it burn cleaner. Now what I am saying is when you load it, it smokes alot for a while. After it runs awhile it burns pretty clean. But just wandering if it could be improved. Before you start I burn year old seasoned wood. But I as soon there are other considerations.

 

[greenpig]

I have the same problem with my H2 hardy. I'm on my 9th year and it doesn't matter what type of wood or seasoned or not. nothing seems to help

 

[dumbarky]

I think dry, seasoned wood helps but it still smokes somewhat more than I would like. I don't burn trash except the occasional cardboard box, wood pallet scrap such. I have experimented with how much ash is left in the clean out. Believe it or not it matters a little. If you clean it out completely thing smokes like a tar kiln. Go figure. I wonder sometimes if the air flow via blower intake could help modulate the burn.

 

[hardy steve]

Burn locust or hedge that will get rid of smoke.When my H2 fires on that it burns like a jet.

 

[dumbarky]

Surely with all the owb furnaces out there, someone has a idea of how to get this furnace to burn cleaner.

 

[ran3465]

Just was at a trade show in Columbus Ohio this weekend, and talked to a hardy salesman/engineer. He claims to have an add on for h2 and h4 that are supposed to increase efficiency by 20-40%. I think the parts were $200, and are hardy approved, and do not mess up your warranty.

 

[wkeev]

Does hardy sell this part or is it something he made? I would be interested if you have any more info Thanks

 

[dumbarky]

Yes would be very interested in the mod. Please PM if you have info.

Casey

 

[hydro2]

What did you fig out about the add on?

Sent from my Dell Streak 7 using Tapatalk

 

[Como]

Just was at a trade show in Columbus Ohio this weekend, and talked to a hardy salesman/engineer. He claims to have an add on for h2 and h4 that are supposed to increase efficiency by 20-40%. I think the parts were $200, and are hardy approved, and do not mess up your warranty.

Sounds rather unlikely. I do not know the efficiency average and it will vary significantly depending on operation and fuel, but let us say it was 40%, that would take it to 48% or 56%. It would need a complete redesign.

Seasoned wood and short burns would be the easiest upgrade.