A quick note on decision to purchase Green Mountain 80 by Hearthstone

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.

joefrompa

Minister of Fire
Sep 7, 2010
802
SE PA
Hi all:

My wife and I spent 6+ months looking at wood stoves with a modern, clean look that could generate real heat in our new build home. Our home will be 3,800 square feet with about 1,000 sq foot great room. We will live in a neighborhood that loses power a good bit and we generally like to be self sufficient, so we wanted a stove that could in a pinch keep the house liveable especially if we sealed off a few areas.

I focused on stoves that could trigger the EPA tax credit....and had a modern look....and were good sized. Ummmmm, those were few. So we expanded a bit and looked the quadrafire discovery 3, blaze king chinook, Supreme Novo 24/38, MF Fire, and a few others. Lot of online shopping then visiting in person where possible.

The Green Mountain 80 met all the paper criteria but we were worried it had the "legs" my wife didn't want - she wanted a straight vertical side.

We went to a great stove shop that carried in person the Supreme (both 24 and 38), all hearthstone products, jotul, and others.

Man, that made the decision easy. The supreme is a looker FROM THE FRONT. From the side, it is a mass of flat, undetailed steel. We are putting the stove in a place where the side profile is going to be seen every single day.

In person, the green mountain 80 is outstanding. Incredibly clean design, quality look from every angle, the Iron looks well crafted, and every function works smoothly. We saw the green mountain 60 in person and somehow it makes a 2.0 CF firebox look huge and manages enormous glass. I have urged my wife to get the 80 for our size home but I'm even concerned with how big it may be in person. Albeit it's going to be in a large room.

Extremely excited. I won't get to post pictures until next year but wanted to share this impression now. Huge thanks to this community for bringing my attention to Hearthstone.
 
  • Like
Reactions: stoveliker

kennyp2339

Minister of Fire
Feb 16, 2014
5,936
07462
2cu firebox might be a little to small, those boxes look big but figure a weeks worth of ash sitting on the bottom of the firebox. Might be a little tough getting a full overnight burn, in my opinion 2cu pans out to 5-7hrs of useful burn time heat. But, you also have new construction so that burn time might not be needed due to new building materials and better insulation being used, compared to my 30 year old 2x4 framed house.
 

joefrompa

Minister of Fire
Sep 7, 2010
802
SE PA
Thank you Kenny. Hearthstone claims 30 hours of heat with the case iron stove, soapstone bricks, and cat burn on their largest model (3.1 cf). I'm anticipating I can reliably load it up at 8-9pm and it's still pumping heat at 8am and can be reloaded in full or part to start the day off.

Never burned with a cat before. Excited to learn the ropes. I've got a 2 acre wooded lot and I already cut down and into slices about 2-3 cords that are seasoning all this year and all next before our first burn. White Oak, Maple, Cherry, Hickory.
 

begreen

Mooderator
Staff member
Nov 18, 2005
89,580
South Puget Sound, WA
How well sealed and insulated will the home be? Are there other complicating factors in the new home like tons of glazing or cathedral ceilings in the stove room?

While still in the planning stage also look at the BK Chinook 30,
 

stoveliker

Minister of Fire
Nov 17, 2019
1,535
Eastern Long Island NY
I think the OP may have signed on the dotted line already?
The heartstone green mountain 80 has a 3.1 cu ft firebox, so that should be good. 23" logs - nice!

You seem to like the glass (me too; I can sit and stare for a long, long time). However, depending on the heat needed (high or low setting of the stove operation), one might not see flames at all with a cat stove.
 

stoveliker

Minister of Fire
Nov 17, 2019
1,535
Eastern Long Island NY
A year in advance?

That was my reading. Decision.
But it doesn't matter.

I did not see the use of asking about other stoves (even though I like the Chinook very much) after a decision was made (see title) when it is a good stove and the wife is happy.
 
  • Like
Reactions: begreen

begreen

Mooderator
Staff member
Nov 18, 2005
89,580
South Puget Sound, WA
Yes, that's the problem with scrolling down to read the post. The title disappears.
 
  • Like
Reactions: stoveliker

Rob_Red

Feeling the Heat
Feb 2, 2021
287
Southern New England
I think the GM80 should serve you well! I have a GM40 and I like it a lot. I know its completely subjective BUT I think Hearthstone makes some of the best looking stoves in the business. The Green Mountain stoves are extremely simple for a cat stove, not many moving parts and easy to understand and work on. I live in new England and use the stove to heat my house, it runs 24/7 and handles it just fine. It may not have the same burn times as some other cat stoves but being a hybrid it does have an attractive fire (it doesn't really operate in smoulder mode like a Blaze King).

If I fully stuff the stove and turn it down I wont get a full overnight burn but the stove will still be hot in the morning and will have enough coals for an easily revivable fire. Keep in mind I have the GM40 which has a tiny firebox. If I were to do it again I would get a stove with a bigger firebox

The only con I have is the Cat needs to be brushed off periodically to remove the fly ash that builds up. You will know to do this when you go to open your bypass and the fire visibly chokes down. When I burn 24/7 I need to do this about every 3 weeks.

One things to consider is this stove (and any other modern stove) needs dry wood with 20% moisture content to properly operate. This takes some planning to achieve. Also I had to learn the hard way that a masonry chimney with a clay liner isn't a good setup for heating your home. I had creosote buildup, cracked tile, and a small chimney fire. Now I am almost done installing a class A chimney setup that I can easily self clean.

With my stove fit and finish is great and it operates as it should, the only reason I would change it out is because I'm a wood stove nerd and I would be curious to try a different setup.
 

joefrompa

Minister of Fire
Sep 7, 2010
802
SE PA
Begreen/all:

Looked at the BK Chinook and decided not to go for it purely on aesthetic grounds - and I liked it.

I'm not a year out. I've finalized my home design, gotten building permits, and my foundation walls are now poured. I'm ~7 months out from moving in :)

I have to select the stove now because of backordering AND because in about 6 weeks we'll be building/planning the chimney and other install while everything is roughed out.
 
  • Like
Reactions: stoveliker

BKVP

Minister of Fire
Begreen/all:

Looked at the BK Chinook and decided not to go for it purely on aesthetic grounds - and I liked it.

I'm not a year out. I've finalized my home design, gotten building permits, and my foundation walls are now poured. I'm ~7 months out from moving in :)

I have to select the stove now because of backordering AND because in about 6 weeks we'll be building/planning the chimney and other install while everything is roughed out.
The entire industry is facing unprecedented demand. If our dealers do not have it in stock, wait times today are 10-12 weeks.

The Biomass Energy Tax credit has given consumers a great incentive to shop for a new wood or pellet heater and correspondingly created delays in delivery.

Good luck in your search!!