central home oil heater, pump cavitating, what to do?

paulmarsFebruary 19, 2013

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,
pa

Thank you for reporting this comment. Undo
bus_driver

"Someone said a small low pressure automotive fuel pump mounted at the tank to push the fuel. This work? "

Lift pumps for the specific purpose are available.

Going to a two-line system increases the permissible lift. A two-stage pump also helps.

Here is a link that might be useful: Pump specifications

    Bookmark   February 20, 2013 at 8:03AM
Thank you for reporting this comment. Undo
dapoppa

Use a Tiger Loop. No need to run a return line. You can buy it on line, it's easy to install.

    Bookmark   February 20, 2013 at 9:30AM
Thank you for reporting this comment. Undo
paulmars

Im thinking of a tigerloop, however running a return line costs less.

pa

    Bookmark   February 20, 2013 at 3:39PM
Thank you for reporting this comment. Undo
paulmars

I cant get any advice on which tigerloop to use. I cant afford a contractor.

    Bookmark   March 7, 2013 at 1:00PM
Thank you for reporting this comment. Undo
dapoppa

If you use the Ultra it minimizes the number of connections needed. The Ultra is a Tiger Loop/spin-on filter combination. The only other items you'd need to buy is a pair of flex oil lines. I saw both on E-Bay at a reasonable price.

A return line may cost less to install but quite often leads to humming when the burner runs. Also, since the flow of fresh oil through the filter is the gear set capacity of the pump, the filter will have to be changed more often. With the Tiger Loop only the amount of oil that's burned goes through the filter.

    Bookmark   March 8, 2013 at 8:33AM
Thank you for reporting this comment. Undo
paulmars

tigerloop sounds best. the maker says it takes a contractor to determine which model. I got another user advice saying the TN is the best one for me. I just cant spend 70+$ on a gamble, not being sure which model I need. untra or TN or ?

    Bookmark   March 8, 2013 at 8:39AM
Thank you for reporting this comment. Undo
dapoppa

The Ultra has a built in filter, the TN does not. The other thing to consider is whether you intend to use bio-fuel. Why not just go to the TigerLoop website and read about all models and go from there?

    Bookmark   March 11, 2013 at 8:08AM
Sign Up to comment
More Discussions
Honeywell th6320R Thermostat
My Honeywell TH6320R thermostat (communicating with...
zver11
Maytag/Nordyne/Nortek HVAC
Wanted to share my HVAC experience. Hopefully save...
bgfuller
Why is split ductless so expensive when installed?
Hi, Long time reader, first post. I have a question,...
JHZR2
Need help with selecting Eff Heat Pump replacement.
20 yr old American Std Heat Pump stopped working. ...
2015hvac
company insists on all payment in advance
Having 2 mini-splits installed, have already paid half...
gramarows
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™