I have a problem with the ignition controller on my furnace. It has a tendency to keep the glowbar glowing for a long time. The furnace maintains the temperture but the globars don't seem to last more then a year or two. So I decided that the hs780-785 controller needed to be replaced. I bought a new one and installed it as to the directions and it won't keep the gas on for more than 2 seconds. According to the part number hs780-34NL-306A it should keep the gas on for 6 seconds. Any ideas as to what may be wrong?

All, I just purchased a home that has an original oil burner from decades ago. With the recent high cost of oil my plans were to replace the burner with an extremely energy efficient Buderus tankless oil Burner with a hot water tank. My goal was 2 fold: 1. to save money on heating oil. I was told I could expect to see a 20% fuel saving with the new unit. I am new to the home so I am not sure what my annual usage will be but I am anticipating approx. 1000 gallons per year. at $4.00 per gallon I'd save $800 per year quickly making the investment worthwhile. NOW, prices have dropped and I'll only save about $550 per year or less if prices continue to drop and my consumption might be less than I anticipate. and 2. I am trying to reduce my carbon footprint by burning less fuel. HOWEVER, what is the environmental impact of replacing the furnace in the first place. For instance, the cost (all costs are environmentally speaking, not financially) of creating the new burner from raw materials, shipping the burner (it's made in germany), and the impact of disposing of the old unit etc.... So, is it worth it? Is it more environmentally friendly to replace the unit now or wait till it dies. The financial costs are becoming less of an influence on my decision. Any help is greatly appreciated. John