Power Draft is More Consumption?

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BrokenGrate
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Post by BrokenGrate » Wed. Mar. 27, 2024 12:44 pm

I have an oil boiler going into a Power Draft instead of a chimney. So my boiler guy said that natural draft is better and to get a chimney inspection on a block and lined chimney. I did and the man said it’s junk and needs a liner.

Not surprising.

But he said by going to natural draft versus power vent, I will consume far less oil. I don’t understand that part. I would think a 40 ft chimney would almost draft more than a power vent. And “ suck the heat out of the boiler”.

I am pretty dumb and don’t know tiny house boilers very well but do have my high pressure steam license and know a bit about bigger boilers. I cannot see where natural draft or power vents would be a huge difference.

 
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nepacoal
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Post by nepacoal » Wed. Mar. 27, 2024 1:05 pm

If the power vent only runs while the boiler is running, and the draft over fire has been set to -.02, I would not expect there to be much difference at all. The power vent may even be a little better since it's not constantly drafting through the boiler while it's not running.

 
waytomany?s
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Post by waytomany?s » Wed. Mar. 27, 2024 3:50 pm

The guy that said it's junk will install the liner? No way!


 
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BigBarney
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Post by BigBarney » Wed. Mar. 27, 2024 9:44 pm

The real advantage of the power vent is the steady draft and the

ability of closing the draft off completely when off.Only the minimum

amount of air goes through the fire so better combustion.. Need a

safety device to prevent firing until the flue is completely open...

BigBarney

 
BrokenGrate
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Post by BrokenGrate » Fri. Mar. 29, 2024 3:01 am

waytomany?s wrote:
Wed. Mar. 27, 2024 3:50 pm
The guy that said it's junk will install the liner? No way!
I know, Right? Not really surprising.

I think the bigger issue is Return on Investment or life expectancy of either method of exhaust extraction.

With a liner in the chimney, it is $4500 and would last 20 years, but with the power vent, they quoted me a price of $3500 and said it would last ten years. I do know the power vent needs to be replaced as it is literally wired together with baling wire, but I see I can buy one myself for $1100 and put the thing in myself. For the same price as a chimney I could put (4) in and get 40 years out of them.

In digging around this site, it seems a stainless steel liner is NOT conducive to having a coal boiler attached, so either method would negate having a coal boiler in the basement. The wife is not really okay with the coal boiler being in the basement either.

 
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Post by Retro_Origin » Fri. Mar. 29, 2024 7:41 am

BrokenGrate wrote:
Fri. Mar. 29, 2024 3:01 am

In digging around this site, it seems a stainless steel liner is NOT conducive to having a coal boiler attached, so either method would negate having a coal boiler in the basement. The wife is not really okay with the coal boiler being in the basement either.
You could probably lay up a chimney that will last decades for that price! Why is your wife NOT ok with boiler in the basement? if that's a deal breaker, build a shed outside with a masonry chimney, put the boiler in it and pipe underground.


 
waytomany?s
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Post by waytomany?s » Fri. Mar. 29, 2024 8:36 am

Where does your wife prefer said boiler?

 
BrokenGrate
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Post by BrokenGrate » Sat. Mar. 30, 2024 1:19 am

waytomany?s wrote:
Fri. Mar. 29, 2024 8:36 am
Where does your wife prefer said boiler?
We have a barn with a woodworking shop over it. I thought of taking our coal boiler and making a spot for it there, I could then plumb the lines to go to the main house, and use latent heat from around the coal boiler to help heat the woodworking shop above. It would make coal storage convenient by being at ground level, with less fire risk (we live in an old Victorian home)

I tried to use home heating calculator on this site to see what heating with coal would save per year to see if doing that would be worth the cost of installing my coal boiler (I already have it), but could not seem to get an idea of what I would save per year. I was not sure it would be that much.

 
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Post by BrokenGrate » Sat. Mar. 30, 2024 1:22 am

waytomany?s wrote:
Fri. Mar. 29, 2024 8:36 am
Where does your wife prefer said boiler?
She is okay with coal. We were both previously married and her and her ex-husband heated with coal which is not super common in Maine. Her biggest thing was loading the coal bin with coal that hurt her back, so easy coal storage and loading is huge with her.

But she is all about spending less money. We both are VERY frugal people.

 
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Post by waytomany?s » Sat. Mar. 30, 2024 7:49 am

BrokenGrate wrote:
Sat. Mar. 30, 2024 1:19 am
We have a barn with a woodworking shop over it. I thought of taking our coal boiler and making a spot for it there, I could then plumb the lines to go to the main house, and use latent heat from around the coal boiler to help heat the woodworking shop above. It would make coal storage convenient by being at ground level, with less fire risk (we live in an old Victorian home)

I tried to use home heating calculator on this site to see what heating with coal would save per year to see if doing that would be worth the cost of installing my coal boiler (I already have it), but could not seem to get an idea of what I would save per year. I was not sure it would be that much.
What did your numbers look like?

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