OWB versus new indoor furnace

salecker

Minister of Fire
Aug 22, 2010
1,309
Northern Canada
Pressurized?? How much water does it hold? The only OWB pressurized system I have ever seen way the old clean fire from Woodmaster and it was a disaster.

You will require oxygen barrier pipe and there is more involved in pressurized systems. Not to mention on I don’t like the thought of a large bomb.
What large bomb? Steam boilers are the large bomb waiting to happen.Closed system boilers have a 30# relief valve
There is actually less involved with a closed system,mine is 10 years in use,zero water testing required,zero water leavle to worry about,unlike melting your open system down if you happen to steam your water away.No chemicals to treat your water to keep it from rusting your boiler away.
 
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spitfire557

Member
Jan 29, 2019
61
PA
Do any of the EPA outdoor gassers qualify for the new 26% tax credit? The Magnum sure wont.
Personally, I would not spend 10,900 on an unproven new model. Especially a non gasser.
Sure do - my local Heatmaster dealer was sure to call me as soon as he found out about that LOL.

And for the record, I have no interest in the pressurized OWB. I just thought it was an interesting concept and wanted to see what the experts here thought.

He did say it would need the oxygen barrier pex, and that the system stays around 12# ideally. When I asked him why other manufacturers aren't doing closed systems, he said it was because of insurance/liability reasons. He also said a few other things that didn't make sense to me, but I'll leave that be for now.
 
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3fordasho

Minister of Fire
Jul 20, 2007
979
South Central Minnesota
Maybe I'm crazy, but I can only find the G7000 on that list and not the G4000.
I noticed that too, perhaps a call to Heatmaster is in order to see why it's not on the list. It would also have to meet the 75% efficient criteria (the G7000 is at 70%). As far as the tax credit, pretty sure installation costs also qualify so it's a pretty decent credit (assuming you pay federal taxes).
 

spitfire557

Member
Jan 29, 2019
61
PA
I noticed that too, perhaps a call to Heatmaster is in order to see why it's not on the list. It would also have to meet the 75% efficient criteria (the G7000 is at 70%). As far as the tax credit, pretty sure installation costs also qualify so it's a pretty decent credit (assuming you pay federal taxes).
Well the G100 has an advertised HHV efficiency of 75.8% so I find it tough to imagine the G4000 would be lower than that. Maybe E Yoder can chime in?
 

E Yoder

Feeling the Heat
Jan 27, 2017
492
Floyd, VA
From what I understand the G4000 passed the EPA emmisions test last spring but the EPA has been extremely slow to get paperwork done this year and get stuff posted.
The G7000 and G4000 were tuned for long burn times and a high 8 hour burn rate btus, to meet the 75% requirement on all the test runs it'll need some additional testing.
From burning a G7000 I'm convinced it's more efficient than the previous generation of G models. But right now they're not advertising it as qualified for the tax credit til they can prove it properly.
The concern is that if manufacturers get lazy and sloppy the tax credit could get yanked.
 

spitfire557

Member
Jan 29, 2019
61
PA
From what I understand the G4000 passed the EPA emmisions test last spring but the EPA has been extremely slow to get paperwork done this year and get stuff posted.
The G7000 and G4000 were tuned for long burn times and a high 8 hour burn rate btus, to meet the 75% requirement on all the test runs it'll need some additional testing.
From burning a G7000 I'm convinced it's more efficient than the previous generation of G models. But right now they're not advertising it as qualified for the tax credit til they can prove it properly.
The concern is that if manufacturers get lazy and sloppy the tax credit could get yanked.
So in due time the G4000 will qualify for the tax credit, but not at this exact moment? I wonder if I purchased one this tax year if I could claim the credit next year if/when it qualifies.
 

SpaceBus

Minister of Fire
Nov 18, 2018
5,375
Downeast Maine
So in due time the G4000 will qualify for the tax credit, but not at this exact moment? I wonder if I purchased one this tax year if I could claim the credit next year if/when it qualifies.
I have this same question about my cookstove that I installed in November 2019.
 

E Yoder

Feeling the Heat
Jan 27, 2017
492
Floyd, VA
I think all the G models will qualify within a month or two.
From what I read on the Alliance for Green Heat website you have to install the heater in the same year you take it out of your taxes.
I don't think this applies to cook stoves. It's to heat a residence. Cookstoves are EPA exempt and not considered heaters.
But I'm no expert, just thinking out loud.
 

SpaceBus

Minister of Fire
Nov 18, 2018
5,375
Downeast Maine
I think all the G models will qualify within a month or two.
From what I read on the Alliance for Green Heat website you have to install the heater in the same year you take it out of your taxes.
I don't think this applies to cook stoves. It's to heat a residence. Cookstoves are EPA exempt and not considered heaters.
But I'm no expert, just thinking out loud.
The manufacturer of my cookstove released a document stating it applied, but I also have my doubts. Our "heat" stove was installed in 2018, but we didn't know about the old tax credit either. Bummer.