Well as you all know I installed a HP on my oil furnace. had some issues with tripping on a low p or so I thought was going out on Hp

duh! I put in a 2" pleated filter (cause I had one) and the unit ran up to 410 head DUH!
took it out and the head settled at 225

doh! Thanks guys I learned something here reg filters other wise I would still be out side scratching my butt!

You know I learned something resid is not quite so easy as it looks
cheers guys