Post by douglas on Sept 6, 2008 13:28:17 GMT -6
Phil or anyone, remember the stove Dave sold me with the two "8" inch line hookups on top? I have near 8 yards to run the lines to the trunk of my furnace itself. I replaced the rear blowers with a large size that fits in a standard furnace and she puts out well coming out the top like a whirlwind with no pipes. I put in "8" inch lines and I noticed I lost much air flow the farther they travel. My question is, if I replace the lines with "12" inch lines will I get more air to the trunk lines of my furnace or is it just a waste of time?
It's just that the longer your runs go and the more elbows you have you have more air loss. so by increasing the duct size the blower won't have to work so hard getting the air to the trunk lines. The pressure may decrease somewhat but more air flow will be able to fill the trunk lines then before dividing more evenly to all the lines going throughout the house. I installed a small blower inside one of the lines going upstairs and it did work fine last year but it just adds more cost to the electric bill. Say for an example that if your water meter you have an half inch line coming into the house, it would be way too small to run a washer, garden hose, bathroom the same time so they use a larger size line dividing it up with reducers to keep a strong pressure throughout the house...