What Safety features should I have with replacement boiler

Al Letellier_9

You will always benefit from a condensing boiler. They are simply more efficient. You get higher efficiencies with these when the system temp is lower (ie: radiant heat), but they are still ahead of anything else.
Most boilers come with all the needed safety devices, but a leak detector is a good idea in the boiler will be located in finished space, and a CO monitor is an absolute must for this application. There are multiple sources for leak monitoring devices and your heating pro should be able to help you out.

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Lee_3

Safety features on replacement boiler

I plan to have my 30 year old gas boiler that feeds fin tube base board for a 1500 sq foot home on 2 floor in NH replaced before winter. We don't plan to live there for ever. Game plan is for 85%+ and outdoor reset something that modulate would be nice too. In a non radiant appplication do I benefit from condensing?

What safety features should it have ? I am aware of low water cut off, is there some thing that detects leakage so I wouldn't flood the basement? Any thing else suggested?

Thank you
Lee