Originally Posted by scep
The newer Atwood tankless heaters are much better. They operate just as the house does, turn on the hot and add cold to bring the temp back down. The Atwood's have temperature regulation via an adjustable gas valve. The Girards didnt have any regulation (still dont?), and thats their weakness.
Here is a case where I think the "newer" Girard unit might
be better. looking at the literature:
1. The Atwood gets brownie points because of the .5 GPM minimum flow rate compared to 1 GPM for the Girard. Users Manual
2. The Girard gets points because of the GMC that can be located INSIDE the COACH for easier adjustment. The Atwood adjustment requires the user to go outside.
In the end...it is a SWAG (Scientific Wild A$$ Guess) on how to evaluate all units.
Don, Sandee & GSD Zeus. Gardian Wings earned are GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 DSDP 4320, Spartan MM IFS, 2013 CR-V, Blue Ox Avail, SMI AF1, Samsung 197R Refer.