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 02-18-2013, 08:46 PM   #1
Member
 
Join Date: Feb 2009
Posts: 88
Share |
Default

oil heater, pump cavitating, what to do?


I had to move the tank 3 feet further down towards ground. So, now the heater pump needs to pull fuel up 3 more feet. There was already a long distance from tank to pump. About 40 feet. The tank was at the same height as the pump. fuel got pulled up about 5 feet, over about 30, then down about 5 feet. Its been working like this for 26 years. However, I had to move tank down 3 feet. So, its now pulling up 8 feet, then over 30 feet, then down 5 feet. However, now it keeps cavitating. What to do? Last resort is to move the tank back up. Someone said a small low pressure automotive fuel pump mounted at the tank to push the fuel. This work?

tks,
paul

paulmars is offline   Reply With Quote
Old 02-18-2013, 08:49 PM   #2
Member
 
Join Date: Feb 2009
Posts: 88
Default

oil heater, pump cavitating, what to do?


sorry, central home heater, diesel fuel oil.

Looking for site listing of my email address, to make sure its right, However, cant find it anywhere. <Please don't put your email address in post.>

Moderator team.


Last edited by beenthere; 02-19-2013 at 05:16 AM. Reason: removed email address
paulmars is offline   Reply With Quote
Old 02-18-2013, 10:09 PM   #3
REP
Member
 
Join Date: Jul 2011
Posts: 615
Default

oil heater, pump cavitating, what to do?


To ans your question,no that won't work.Try running a return line from your pump to the tank and make sure the filter is replaced every year.
REP is offline   Reply With Quote
Old 02-19-2013, 05:19 AM   #4
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,389
Default

oil heater, pump cavitating, what to do?


Length of line is too long. When the tank was at same height, the 5 foot up and 5 foot down canceled each other out.

As said by rep. Run a return lie. You'll need to add a bypass plug to the pump. Another way is to install a tiger loop at/near the burner.
beenthere 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
ejector pump suddenly tripping gfi lilargie Electrical 4 04-24-2012 05:15 PM
MasterCraft shallow well pump not happy rtoni Plumbing 7 06-06-2011 11:41 AM
Heat Pump will not cut off sunliner HVAC 13 05-17-2011 05:38 AM
sump pump continuing running deck hand Plumbing 2 01-16-2008 04:35 PM
Water heater problem bear1957 Plumbing 23 11-01-2007 03:53 PM




Top of Page | View New Posts

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