EcoRenovator  

Go Back   EcoRenovator > Improvements > Other Improvements
Advanced Search
 


Blog Register 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read


Reply
 
Thread Tools Display Modes
Old 02-24-09, 07:53 AM   #1
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,875
Thanks: 106
Thanked 245 Times in 225 Posts
Default oil burner air source mod

I have a forced baseboard hot water by oil heating system. (also can burn solid fuel).



When the burner starts up, it's sucking in the 55 deg air from my basement floor and sending up the stack.

Where does my house get it's fresh replacement air? In the dead of winter,
there is nothing really left open to allow outside air to come in.

My guess is, cold air is getting in from any poor sealing job in the windows, doors, attic stair pull-down & etc.

In other words, I have no control over where this outside air is coming from!

I want to take control of the air input. I don't want cold air coming in from the bathroom window.

My plan is to install a large PVC pipe to bring in cold outside air, right up
next to the left side of the oil burner. An air valve will open when the burner is running and the cold air will be sucked in by the burner.

In theory, the air-pipe should almost eliminate negative air pressure inside the house.
Eliminating cold air leaking into the heated areas!

----
This would be a cheap DIY job and it seems like it might save a lot of BTUs over the heating season, so what's the downside?

Comments please:


Cheers,
Rich

Xringer is offline   Reply With Quote
Old 02-24-09, 09:19 AM   #2
Daox
Administrator
 
Daox's Avatar
 
Join Date: Aug 2008
Location: Germantown, WI
Posts: 5,478
Thanks: 1,112
Thanked 369 Times in 300 Posts
Default

Sounds like a good idea to me.
Daox is offline   Reply With Quote
Old 02-24-09, 05:20 PM   #3
mincus
Helper EcoRenovator
 
Join Date: Feb 2009
Location: St. Louis, MO
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Hopefully gascort can provide more info on this. See this post about the same topic except dealing with the dryer vent exhaust. But it's basically the same problem you're facing.

http://ecorenovator.org/forum/projec....html#post2111

I do believe that high efficiency furnaces use two PVC pipes, one to draw in air and one for exhaust. This cuts the negative air pressure in the house (what most furnaces and dryers produce). That negative air pressure will cause drafts in your house. Drawing the air in through a PVC pipe would create higher pressure in your house, which might push some of the warm air out. But, if you think about it, it's better to push 70 degree air out than suck 10 or 20 degree air in (which you then have to heat).

That's my take on it anyways.
mincus is offline   Reply With Quote
Old 02-24-09, 06:31 PM   #4
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,875
Thanks: 106
Thanked 245 Times in 225 Posts
Default

Unless I put a fan in the pipe to force air into the house, I don't think it's going to contribute to a positive pressure in the house.

What is should do is provide an easy air source from the outdoors right to the burner. Therefore, the negative pressure inside the house would be much lower. Closer to outdoor pressure.
Since the pressure would be close to equal, inside and out, 98% of the cold air coming into the house would be from the PVC air pipe.

I've studied what the dryer does, but since it's only about 1 hour a week, it's not a big problem.

However, since my dryer is about 15 feet from the oil burner, the new air pipe
will be able to feed in cold air to the basement floor for the dryer..
It would provide the same equalizing effect, limiting the amount of cold air that is pulled in upstairs in the heated areas..

I'm not too worried about 10 degree air getting into the dryer and effecting the drying process. Since the air would be flowing out of the pipe and traveling over the floor.. The floor is geothermally "heated" to about 55 degrees all year round. It will cool a little, but recover quickly.

Xringer is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 05:25 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design