Quote:
Originally Posted by rwidman
A BTU is a BTU. You had some other issues or you're making a bad comparison.
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A BTU is a BTU but....
The rating on the unit assume a standard set of conditions which includes the
water temp for a
marine unit.
The warmer the
water the fewer the BTU.
And yes, water temps in the 90's are not uncommon and will impact output.