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Bought a house late last year that had a new Peerless EC/ECT 05 oil-fired boiler (for a 1-pipe steam system). I was looking at the specs and saw that Peerless builds three variants of the 05 - each with varying specs and capacities that make a difference in terms of heat radiation. Can anyone tell me how I find out which type of 05 I have? I am not a plumber and would rather not take the boiler apart to get this answer! :) I've attached the spec sheet. Thanks, in advance, for y'all's help.