Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-11-2010, 04:34 PM   #1
Newbie
 
Join Date: Jan 2010
Location: NC
Posts: 13
Share |
Default

Which beckett burner do I need.


Hello.

I want to upgrade my old Lennox furnace w/ burner with a new Beckett oil burner. I don't know which one I need to buy? Can someone tell me which one I need or how to figure it out? Here is what I have now.. Lennox furnace with orginal Lennox burner, it uses a honeywell RA116A primary Control (Stack Switch) which is one of the main reasons for the upgrade. thank you for any help..

Model # OH7Q-105C
Max Bonnet 84,000 btu/hr
Max firing rate 0.75 GpH
Oil Burner OHP30-8
Draft 0.03

I have a heat pump and use the oil furnace as emergency/secondary heat...

jmhai is offline   Reply With Quote
Old 01-11-2010, 04:44 PM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,787
Default

Which beckett burner do I need.


You need to measure the length of the blast tube you will need.

A AGF is what you'll want.
Probably be able to down fire to a .65 nozzle.


I would consider getting a new, cheap Olsen oil fired furnace.

While you only use it for aux. A new furnace will have a better blower for your heat pump. And come with a beckett burner.

The improve air flow will be worth it.

beenthere is online now   Reply With Quote
Old 01-11-2010, 05:01 PM   #3
Newbie
 
Join Date: Jan 2010
Location: NC
Posts: 13
Default

Which beckett burner do I need.


Quote:
Originally Posted by beenthere View Post
You need to measure the length of the blast tube you will need.

A AGF is what you'll want.
Probably be able to down fire to a .65 nozzle.


I would consider getting a new, cheap Olsen oil fired furnace.

While you only use it for aux. A new furnace will have a better blower for your heat pump. And come with a beckett burner.

The improve air flow will be worth it.
Did you mean a AFG.... I will think about the Olsen unit, but my Service guy said the insides of my Lennox look great and the only down side being the old burner and stack switch.. Thanks again for your help..
jmhai is offline   Reply With Quote
Old 01-11-2010, 05:10 PM   #4
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,787
Default

Which beckett burner do I need.


Yeah. I meant AFG.

Your old furnace probably has fairly large passage ways. So it won't get as good of an efficiency as a new one will.

Smaller passage ways give you heat quicker. And lets less heat go up the chimney.

So it could be a considerable amount of oil you save with a new, properly sized furnace.
beenthere is online now   Reply With Quote
Old 01-11-2010, 06:48 PM   #5
Member
 
tk03's Avatar
 
Join Date: Sep 2008
Location: PA
Posts: 167
Default

Which beckett burner do I need.


Back in the 70's I did many conversions with new oil burners. We always down fired slightly due to higher flame temps. Many of those jobs failed the heat exchangers and combustion chambers in about 3 years on furnaces. Boilers lasted longer due to water behind the iron. My guess is more expansion of the metal and long term fatigue of the chamber at lower temps.
tk03 is offline   Reply With Quote
Old 01-11-2010, 07:49 PM   #6
Newbie
 
Join Date: Jan 2010
Location: NC
Posts: 13
Default

Which beckett burner do I need.


Quote:
Originally Posted by tk03 View Post
Back in the 70's I did many conversions with new oil burners. We always down fired slightly due to higher flame temps. Many of those jobs failed the heat exchangers and combustion chambers in about 3 years on furnaces. Boilers lasted longer due to water behind the iron. My guess is more expansion of the metal and long term fatigue of the chamber at lower temps.
You recommend a new furnace too.. Are you saying the bricks break and come apart or the metal behind warps or both happens..
jmhai is offline   Reply With Quote
Old 01-11-2010, 08:42 PM   #7
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,260
Default

Which beckett burner do I need.


Heat exchangers can crack from old age, expansion and contraction, brittleness and oil burners CAN and do produce CO just like gas burners. I would listen to them and buy a new furnace, Impossible to predict when an exchanger will split.

yuri is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
monitor heater repair help speakers3 HVAC 14 08-18-2013 02:52 PM
Pressure Switch, Draft Inducer, Burner Box, Problem majorapus HVAC 7 10-25-2009 06:14 PM
Broken Burner Fix mikelbeck HVAC 2 01-16-2009 09:05 PM
Question about gas burner design darsunt HVAC 4 12-14-2008 01:37 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.