Archive for January, 2010
Can I use an old chimney flue intended for a wood or coal range as a duct for a modern range hood?
My house has a 3 flue chimney with one closed off opening to the kitchen for a flue that is not in use. I suppose it was for a wood or coal kitchen range. The chimney rises through my 2 story 1898 home and thru the attic. The other two flues are for the boiler and a fireplace which is never used. . We wonder if a range hood could vent into this flue? Our carpenter worries that it would cause a lot of heat loss. I worry that the old flue might be very dirty.
It would be perfectly fine for you to do this. However, your carpenter is absolutely right. When you are cooking in the winter and start up your hood, it’s going to blow expensive hot air right out of your chimney. All in all, it’s not really worth it unless you live in a very warm climate.
The tube that connects my oil tank to the central heating boiler seems to have started leaking…?
How do I replace it without getting an air block in the line?
<>When you replace the line hook up the tank end first and allow a little oil to flow out the furnace end before you hook up the line. This will eliminate most of the air. What is left will be of little consequence. Also, there is usually a filter screen at the oil inlet to the furnace and there may be a bleeder valve to siphon off the air.
What should be my oil fired boiler temperature settings be?
I need to know where to set my heating temperatures at on the boiler. I just had a new Peerless oilburner installed. Coiless tank, WBV 30 I believe. The thing firs up every five minutes. I see that the high limit is 180 and the low is 130 but the low differential is 10. Should the high be more like 160 and the LDF be at 30?
It depends on how the control is being used and how it is wired. Sometimes they don’t work like you may think they do.
Go to this page: http://customer.honeywell.com/Business/Cultures/en-US/Default.htm
On the bottom right of page, plug in the model # of the control (I’m assuming it is a L6081A) and hit search. You should find a PDF with instructions on your control. It may not be wired as a low limit circ control. It can be wired multiple ways.
Also, the circulator may be dirty and not moving the flow it should and causing the short cycling.
An incorrect setting on your wall thermostat heat anticipator will also cause short cycling (usually on mercury type)