plumber147 wrote:ok new 3000 is in basement....3 hours,8 men,1 truck, quad w/winch and 2-30 packs.And now pipe and wire questions.
Current boiler oil Burnham
I am a plumber by trade and do install lots of oil boilers but coal is new looking for most efficent way to hook up. By the way fuel oil is at 3.89 per gallon/ hard coal is 145.00 ton. Thanks
plumber147 wrote:By using the easy method wont this take away from my other zones that are calling for heat ? STING talk to me I am listening!!!!
Primary - secondary systems have there place but you have to understand where to best use them. Check this link for a discussion about their correct use.Sting wrote:plumber147 wrote:By using the easy method wont this take away from my other zones that are calling for heat ? STING talk to me I am listening!!!!
I am sort of getting beat up around here re: primary secondary piping so you should decide if its right for you.
here is a link for 4 books that I used to have - but borrowed once to many times.
This link is broken, either the page no longer exists or there is some other issue like a typo.
The primary secondary made ez is the one you want but the other three are great reading and help you make your systems run better - possibly the best 80 bucks you will ever spend on you hobby.
I've got my coal and oil boilers piped in series but with isolation valves to remove and bypass the coal boiler. This allows me to service my coal boiler at any time and still have heat and domestic hot water via my indirect hot water heater. For the electric controls I have a manual summer/winter switch. In summer mode the oil boiler aquastat controls the oil burning firing and the resultant boiler water temperature. In winter mode the coal boiler aquastat controls the coal combustion blower and the resulatant boiler water temperature. In winter running the house return water through the oil boiler keeps it warm and it acts like a radiator for keeping the building (not my house) warm. In summer I isolate flow through the coal boiler because I don't want the radiation loss of the now oil heated boiler water. I do however keep one of the coal boiler valves cracked enough to get some heat into the coal boiler and prevent summertime rusting. It's a thermal siphon loop, coal boiler return (inlet) through the expansion tank piping (thermal return).stokerscot wrote:May as well get my two cents worth. So what happens during the summer with your boiler set up in series. If there is no call for heat the oil boiler cools enough to fire. So piping thru the coal boiler doesn't work so well for summer? Scott