I am in need of replacing my oil fired boiler, it heats my hot water too. I live in Delaware in a 2200 square foot, 1900's farmhouse with original radiators. I am on well water, and I think it to be rather acidic. I am planning to replace the oil fired with a natural gas boiler.
I would like to know if a natural gas, tankless boiler, will work WELL with a radiator system. I am told by some heating people yes, and some no. The no people I think, if I understand them correctly, say the efficiency, of the system, will be diminished greatly, because radiators need a good amount of water to be to be heated and at a very high temperature, before it circulates through the radiators, and a tankless boiler will not do this properly for radiators to operate properly.
A heating person made the comment that the system he would propose has a low loss header, built in to it, or maybe it is an accessory you purchase separately. He said this makes everything ok with my old radiator system, and I need not be concerned.
Thanks, in advance, for any input, and until someone can straighten me out, I shall remain,
My existing set up is:
5 Section Boiler (heats my domestic hot water)
1.5 Burner Capacity
186 Valve Capacity