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Boiler Change Out - Low Mass vs High mass plus brands
My 1988 home in Southern Worcester County, MA is in need of a boiler replacement within the next few months. The current heating system is based off of a 23 year old Burnham RS-115 Oil boiler with Tankless Coil.
Right now, we have 4 zones hanging off this system (1 for the first floor, 1 for the second floor, 1 for the finished basement room 10x15, 1 for the four season porch 12x14).
Overall square footage of the house is 2200sq feet and I've decided boiler plus indirect is the way to go. We have no option but to use oil.
My oil company has recommended a Burnham MPO-IQ 147 with a 37 gallon indirect. They just looked at it and gave me a price.
A small oil burner outfit that is up and coming has taken the time to do a full heat loss calc and is in process of recommending two options
1.) Trio Low Mass Boiler (I think this is a re-labeled Biasi) with Super-Stor tank
2.) Buderus 115 with Super Stor Tank
My questions are as follows:
Should I have any brand preference including Weil-Mclain or Peerless from someone else?
Should I go low-mass on the boiler? Is this proven?
Any recommended installers on the Mass/RI border
Thanks in advance.