CrappieKeith
Addicted to ArboristSite
There's a ton of information out there about this new tax credit however there is a lot unsaid or said in a way that is what I'd call pure marketing that does not benefit the homeowner.
1st off ...the new credit says that the unit you buy must be 75% efficient using the lower heat value method of testing.
This test assumes there is no moisture in the solid fuel.
How many furnaces or stove approves kiln dried wood to be burned in them?
None as far as I know so if we are using wood logs there will always be 15-20% moisture in that solid fuel.
Pellets have some moisture in them as does corn.
So to say they are 80% or whatever is very misleading but it sells wood burners.
The government allowed for this lower heating value because of the stove industry pushing for this easier to obtain higher percentages allowing more stoves to be allowed and thusly selling more stoves. It's all about the almighty dollar folks.
It has nothing to do with helping you get a better furnace or stove.
2nd.... a tax credit is a one time credit.....getting a well built efficient furnace that makes and exchanges all of the heat available will service you for decades.
the later is your better option.Add up the thousands of dollars every year that you'll be paying your self for loading the solid fuel and you'll see the return on your investment.
3rd...the term gasifier is also a marketing term. There are no residential gasifiers on the market.
Here's a link to explain what a gasifier is..
http://en.wikipedia.org/wiki/Gasification
In truth you'd need a fluid bed or some filtration to screen out the impurities to end up with pure gas and then that gas is burnt to generate heat.
The truer term would be an after burn .
This process is derived by heating combustion air and then introducing it in a hot environment where the wood smoke is.The smoke will burn.
Lastly....how efficient is your furnace? Good question.
There is no way to put a single number on a wood burner. They do not have continuity of operation like a gas,oil or electric furnace has.
There are so many variances.
How wet is you wood?The dryer the wood the more heat it can make.
How well does you flue draft? The slower the draft speeds ...the less heat that goes up the flue.
Is the furnace sized properly? CO against flue gas temps are how real efficiencies are measured and to have a furnace at high burn...those percentages will be higher vs lower flues or stack temps.
The question should be ...what is the range of efficiencies?
55-70% is about the best you could expect.
At Yukon ,we make solid fuel furnaces with 30 year warranties. All of our furnaces incoperate an after burn.
They all have massive heat exchangers and they all have barometric draft regulators slow flue temps to 400 degrees with thermosts that cycle burn rates.
You can not find another wood burner that makes any more heat or exchanges any more heat than the line of Yukon furnaces do.
1st off ...the new credit says that the unit you buy must be 75% efficient using the lower heat value method of testing.
This test assumes there is no moisture in the solid fuel.
How many furnaces or stove approves kiln dried wood to be burned in them?
None as far as I know so if we are using wood logs there will always be 15-20% moisture in that solid fuel.
Pellets have some moisture in them as does corn.
So to say they are 80% or whatever is very misleading but it sells wood burners.
The government allowed for this lower heating value because of the stove industry pushing for this easier to obtain higher percentages allowing more stoves to be allowed and thusly selling more stoves. It's all about the almighty dollar folks.
It has nothing to do with helping you get a better furnace or stove.
2nd.... a tax credit is a one time credit.....getting a well built efficient furnace that makes and exchanges all of the heat available will service you for decades.
the later is your better option.Add up the thousands of dollars every year that you'll be paying your self for loading the solid fuel and you'll see the return on your investment.
3rd...the term gasifier is also a marketing term. There are no residential gasifiers on the market.
Here's a link to explain what a gasifier is..
http://en.wikipedia.org/wiki/Gasification
In truth you'd need a fluid bed or some filtration to screen out the impurities to end up with pure gas and then that gas is burnt to generate heat.
The truer term would be an after burn .
This process is derived by heating combustion air and then introducing it in a hot environment where the wood smoke is.The smoke will burn.
Lastly....how efficient is your furnace? Good question.
There is no way to put a single number on a wood burner. They do not have continuity of operation like a gas,oil or electric furnace has.
There are so many variances.
How wet is you wood?The dryer the wood the more heat it can make.
How well does you flue draft? The slower the draft speeds ...the less heat that goes up the flue.
Is the furnace sized properly? CO against flue gas temps are how real efficiencies are measured and to have a furnace at high burn...those percentages will be higher vs lower flues or stack temps.
The question should be ...what is the range of efficiencies?
55-70% is about the best you could expect.
At Yukon ,we make solid fuel furnaces with 30 year warranties. All of our furnaces incoperate an after burn.
They all have massive heat exchangers and they all have barometric draft regulators slow flue temps to 400 degrees with thermosts that cycle burn rates.
You can not find another wood burner that makes any more heat or exchanges any more heat than the line of Yukon furnaces do.