hi - we have a 100 plus year old house that has absolutely no heat. we have a number of radiators that were originally steam, but could be converted for hot water use.
the house is located in vermont and there is always a chance of prolonged electric outage and therefore pipes and systems freezing. this is a full time residence.
what are the best options for efficient heat? Forced Hot water or Steam?
Which type of new boilers would be better to use - condensing, three phase or modulating and condensing?
is there a way to determine the amount of fuel each boiler will use per year based on BTU's, EDR and area to be heated.?
we have always had steam - know how to maintain and find its easier as it lacks as many moving parts as well as being a comfortable heat.
Also have been told that hot water can be more efficient but cannot find why.
please help us decide which type of system to purchase. thank you.