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mod/con with indirect or on demand water heater
radmix
Member Posts: 194
Which is more efficient a Mod/Con With a side arm or a on demand water heater. My guess is the water heater with the condensing boiler.
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Comments
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A well insulated...
Indirect would be my choice. The combustion Eff. numbers will also be a bit higher w/ the mod/con. Furthermore I am not a huge fan of having a boiler sit idle in the non heating season. kpc0
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