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Boiler Decisions For New Install
Hi Guys -
I've been scouring this page for a while but I'm throwing in my hat, I'm way out of my league. Getting quotes for a new heating system, only two different setups have been suggested, but each contractor seems to bad mouth the system they are not recommending and my head is spinning. Looking for some unbiased insight, something a bit more tangible.
800sqft cape (1 story living space)
2 bds, 1 ba
Old oil burner (96k BTU) which was converted to gas
Recently updated with blown insulation in attic and all exterior walls
1) Combi boiler (Lochnivar 199BTU) with DHW 4.8GPM
2) Condensing boiler (Lochnivar 110BTU) with a 40GAL indirect hot water heater (Superstor)
I've read a lot, maybe too much, and there are pros and cons of each that I can see. My biggest worries for the the combi boiler are getting enough hot water, the potentially expensive repairs, lime scaling, the boiler being required to run during the summer, and the potential for short cycling. My biggest worries about the indirect option, honestly, is the much higher upfront price and larger footprint in the basement.
Biggest hot water drawn would be 2-3 tubs per week, most simultaneous usage would probably be a sink or wash machine and the shower but it would be rare.
I appreciate any insight you are all willing to provide.