"Mark and Gloria Hagwood" wrote in message
news:ncRee.14611$tp.9758@fed1read04...
My friend purchased a place that has a Slant Fin LP boiler with multiple
zones. He's unfamiliar with any service schedule and would appreciate your
advice.

How often should the burners be inspected?
How oftern should the water be changed?
Should water additives be put into the boiler?

Thanks.

You can find the manuals he http://www.slantfin.com/boilers.html

Gas? By LP do you mean Liquid Propane (gas) or Low Pressure (steam boiler of
various fuels)? Low pressure boilers operate at less than 15 psi, and for
residential, usually less than 5 psi. Gas burns cleaner and needs much
less maintenance. Oil needs cleaning about every 1000 gallons or so.

I've never changed water in a hydronic system, but blow down steam systems
every day. Fresh water has more oxygen. Additives are generally not needed
in cast iron boilers, but in some areas it may help if the water is
extremely corrosive.