BioDieselNow - Renewable biodiesel fuel

Hi Mike, I just come across this forum I just wanted to see if you got your answer to your question. I have been using 100 % BD in my house for years. Yes unless you change out your pump is will stop working in about 8 months . This is not a big deal because using the BD you would have paid for the new...

So how about it? Unfortunately, I have natural gas heat and haven't paid close attention to bioheat developments. What percentage is safe to blend in an unmodified old heater? How about a virgin one? What modifications need to be made to properly run a boiler on biodiesel at various percentages? Any...