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Jf1000
Guest
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Posted: Mon Oct 2nd, 2006 05:19 pm |
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Hi,
What impact do combustion air kits have on efficiency?
It seems that using cold outside air rather than pre=heated inside air would cause less cold air to be pulled in to the house resulting in the boiler running less. What's your take?
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Al Gregory
Administrator
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Posted: Mon Oct 2nd, 2006 06:42 pm |
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| Personally if I dont absolutly need an outside air kit I don't. If you do need to use on I try to make the run long enough to help heat the air some before it gets to the burner.
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toolman_tim
Member
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Posted: Wed Oct 4th, 2006 12:56 am |
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"It seems that using cold outside air rather than pre=heated inside air would cause less cold air to be pulled in to the house resulting in the boiler running less. What's your take?"
A fresh air intake gives your burner a supply of unimpeded combustion air.
If installed, it can draw less drafts though windows or doors in the living space, but if you are in an older house and your doors and windows leak, than your basement is probably not that tight either and your burner will perform just fine without one.
I often install a new boiler/burner in new construction (very tight and insulated) and include a fresh air intake as part of the install so no matter how tight the house is or how crowded the boiler room becomes, the burner is never looking for combustion air.
In closing, I like fresh air intakes. It makes setting up a burner a snap, with hardly a variable in combustion air. Just my 2.
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Al Gregory
Administrator
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Posted: Wed Oct 4th, 2006 01:39 am |
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| Do you ever have problems when the outside air is very cold, say around 10 degrees or less.
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toolman_tim
Member
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Posted: Wed Oct 4th, 2006 01:49 am |
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None as yet. Just have to set burner, at time of tune up, CO2 accordingly, a little richer in the warmer months=leaner in cold months, maintain the sweet spot of CO2/O2 as you prefer.
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Current time is 12:36 am | |
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